The Belgian Constitution: The Efficacy Approach to European and Global Governance

The Belgian Constitution dates back to 1831 but became more prominent with the introduction of the Constitutional Court in 1980. While initially tasked with adjudication of federal competences, the Court gradually turned into a fundamental rights court. The protection of fundamental rights is predominantly based on the ECHR. The Belgian constitutional system demonstrates a singular openness towards international influences and, in particular, the European integration project. A monist approach, adopted by the Supreme Court in 1971, ensures the smooth implementation and priority of international and EU law, whereas only few instruments exist to temper their impact on constitutional values and fundamental rights or to ensure legitimacy. The disintegration of the Belgian State weakened the concept of national sovereignty, referendums for the approval of treaties are unconstitutional, and ratification of a treaty is not subjected to specific requirements other than a majority vote in Parliament. Overall, the Belgian Constitutional Court gives evidence of a strikingly Europe-friendly attitude, in line with attitudes at the political level and in society. Consequently, both the Europeanisation of constitutional rights and the implementation of international and EU law that potentially restrict fundamental rights, hardly trigger public debate. This approach, however, may change in the future. Surveys demonstrate that confidence in the European integration project is in decline amongst young adults. In 2016, after the submission of this paper, the Constitutional Court for the first time adhered to the constitutional identity doctrine, so far without further consequences. Also, it can be expected that the Constitutional Court would not easily accept external interference that would upset the delicate linguistic balances that are crucial for the stability of a divided Belgian State. Already, (Flemish) political parties are hesitant to join international treaties that they perceive as a threat to such balances.

had already broken the inviolability of Acts of Parliament by empowering courts to review such acts in the light of directly applicable international law. 4 The Constitutional Court has gradually grown into a fully fledged human rights court that has constitutionalised the European Convention on Human Rights (ECHR) and relies heavily on the case law of the European Court of Human Rights (ECtHR). The Constitutional Court's power was initially limited to the competence to allocate rules between the federal state and the regional entities, but was widened in 1988 to include ensuring the equality clause and the clause protecting the rights and freedoms concerning education. While this situation lasted up to 2003 before Parliament conferred on the Court the right to directly review legislation for compatibility with fundamental rights and freedoms set out in the Constitution, this intervention only confirmed the powers that the Court had already assumed by linking the equality and non-discrimination clause with fundamental rights as protected by the Constitution or international treaties. The Court has now become an important actor in the constitutional field, providing individuals with an instrument to challenge Acts of Parliament which they consider as ignoring their interests. 5 Although the Constitutional Court has in 21% of the cases found an Act of Parliament to violate the Constitution, 6 Parliament has maintained confidence in the Constitutional Court. 7 According to Art. 33 of the Constitution, all powers are derived from the 'Nation' as opposed to the 'People'. 8 The idea of national sovereignty was inspired by French constitutional theory, and implied a functional concept of the right to vote. Only in 1893 did the Constitution introduce universal (plural) voting. This was gradually widened, with equal suffrage for men introduced in 1918 and extended to women in 1948. Moreover, whereas the idea of a 'Nation' presupposes the notion of a single and undivided country, the Constitution now recognises that Belgium is a multinational federation. It enumerates four linguistic regions, divides the federal Parliament into two language groups and requires linguistic parity in the federal Government. While these two evolutions seem to have emptied the concept of national sovereignty, Art. 33 is still referred to as a constitutional obstacle for the organisation of nation-wide referendums. Meanwhile, the Constitution does allow for local advisory referendums and, since 2014, for advisory referendums organised by the subnational Regions.

The Amendment of the Constitution in Relation to the European Union
given a declaration of infringement and was involved in the entire procedure for the settlement of the dispute, including the procedure before the Court. In 2014, the special law was amended in order to simplify the substitution mechanisms in matters concerning the reduction of greenhouse gases in execution of the UN Framework Convention on Climate Change. In these matters, the federal authority can already act as a substitute if, for example, the European Commission declares an infringement in conformity with Art. 258 TFEU.
In 1993 as well, Art. 168 was inserted in the Belgian Constitution, granting the Houses the right to be informed of negotiations concerning any revision of the EU treaties. 14 Article 168 gives evidence that the Constitution regards the EU treaties as special, as it leads to specific information obligations, whereas in the case of other treaties Parliament can only agree or disagree with the treaty after the negotiations have taken place. The constituent power aimed at giving greater legitimacy to the increasing transfer of powers to the European level. 15 The Government promised to inform Parliament in a similar way regarding 'treaties of the same nature', which for example imply transfers of powers to similar supranational organisations, 16 but this was never explicitly inserted in the Constitution. This promise has not gained much importance in practice. As an example of 'treaties of the same nature', the Government has referred to the Western European Union. 17 This organisation, however, never carried much weight and was dissolved in 2011, with the EU having taken over its tasks.
Article 117, inserted in the course of the same fourth state reform, mentions the European Parliament, but only to secure a fixed legislative term for the parliaments of the federated entities, which, for the first time, were directly elected. According to this provision, community and regional parliamentary elections, as a rule, take place on the same day and coincide with European parliamentary elections.
A third phase occurred in 1998 when a provision was inserted in the Constitution in order to comply with the EU requirement, laid down in the Maastricht Treaty and EU directives, to give EU citizens the right to vote for municipality councils. As Art. 8 of the Constitution requires that a person have Belgian nationality for the exercise of core political rights such as the right to vote, the constitutionality of the ratification of the Maastricht Treaty was contested. 18 In July 1998, the European Court of Justice (ECJ) established the failure to timely implement the EU directives regarding the right to vote and rejected the necessity to follow a rigid constitutional 14 A similar obligation is inserted in Art. 16 § 2 Special Majority Law on the Reform of the Institutions, this time in favour of the federated parliaments, if the treaty touches upon their competences. 15 Craenen 1993, p. 89 andIngelaere 1994, p. 81. 16 Parl. Doc. Senate 1991Parl. Doc. House 1992-1993 Parl. Doc. Senate 1991 This was already a point of critique in the advisory report of 6 May 1992 of the Council of State, Legislation Division, on the law regarding the approval of the Maastricht Treaty, Parl. Doc. House of Representatives, Extraordinary Session 1991 amendment procedure as a justification for non-compliance. 19 The Constitution was revised in 1998 andimplemented in 1999. 20 The third paragraph added to Art. 8 of the Constitution now allows Parliament to establish the right to vote for EU citizens 'in accordance with Belgium's international and supranational obligations'. According to a fourth paragraph, this right can be extended to Belgian residents who are not citizens of an EU Member State. Hence, the Constitution allows Parliament to give a right to vote to non-Belgian citizens, whether EU citizens or not, but the extent of this right to vote depends upon EU law. In other words, the Constitution restricts the powers of Parliament, but refers to the EU to decide upon the substantive limits: the right to vote can only be given to residents in Belgium who are not Belgian citizens, in so far as EU law obliges Belgium to confer this right to EU citizens.
Finally, Art. 168bis was inserted in the Constitution in 2012, stating that a special majority law is to determine special rules regarding the election of the European Parliament, with a view to protecting the 'legitimate interests' of Frenchand Dutch-speaking people in the former province of Brabant. This article should be read against the background of Belgian multinational conflict management. When Brussels-Halle-Vilvoorde, Belgian's only electoral district across language borders, was split after decades of Flemish struggle, this provision ensured that francophone people in certain Flemish municipalities around the borders of Brussels could still vote for candidates on francophone electoral lists. The political parties wanted to insert this in the Constitution to secure it against actions before the Constitutional Court. 21 As this article, along with other provisions required for the sixth Belgian state reform, was not mentioned in the list of constitutional articles that can be amended, a temporary provision was added to Art. 195 that lays down the amendment procedure. This provision allowed for constitutional amendment without prior dissolution of Parliament, but only to insert these articles and only during the one legislative session following the elections in 2010.
The same temporary provision enabled the amendment of Arts. 46 and 117, to provide that parliamentary elections at the federal level will also take place on the same day as the elections of the European Parliament, and that if the federal Parliament is dissolved before its term expires, the next term may not extend beyond the day when the election of the European Parliament following this dissolution is held. Article 46 of the Constitution, however, requires the adoption of a special majority lawand hence a new two-thirds majority and agreement in both language groupsfor bringing the latter rule into force. At the same time, the regional parliaments may decide to choose another date for regional elections. Hence, the fixed five-year-term for the election of the European Parliament is now used to stabilise federal rather than regional legislatures.

Conceptualising Sovereignty and the Limits to the Transfers of Powers
1.3.1 Although Art. 33 of the Constitution states that 'all powers emanate from the Nation' and that these powers 'are exercised in the manner laid down by the Constitution', the sovereignty principle has never stood in the way of European integration. This was a project embraced by both the political and legal elites. As mentioned in the previous section, Art. 34 of the Constitution provides for a constitutional basis for the transfer of powers to the European Union or other international or supranational organisations. A law adopted by an ordinary majority suffices to this effect. Until May 2014, the approval of both the House of Representatives and the Senate was required; since then, only the House of Representatives has this competence. No special procedural or substantive requirements apply apart from the obligation to inform Parliament. However, as EU treaties, as a rule, affect the federal and the federated entities, the approval of both the federal and the federated parliaments is required. 22 1.3.2-1.3.3 Where the Constitution remains silent on the subject of the relations between domestic and international legal norms, the Belgian courts have filled this void. Already in 1971, the Cour de Cassation (hereinafter Supreme Court) pronounced its milestone Franco Suisse Le Ski judgment, which established the primacy of self-executing international law over national law. 23 Although the case concerned EEC law and the judgment was a reply to the emerging ECJ case law pronouncing the primacy of EEC law, the Supreme Court gave primacy to all international law on the basis of a newly accepted monist theory. In the Orfinger case, the Conseil d'Etat, the Belgian Supreme Administrative Court (hereinafter Council of State) clarified that on the basis of Art. 34 of the Constitution, EU law also presides over the Constitution. 24 Through this article, EU law, including ECJ case law, becomes part of the domestic legal order. In turn, the Supreme Court invoked the ECJ's Internationale Handelsgesellschaft judgment to recall that constitutional rights cannot call the validity of primary or secondary EU law into question. 25 The Constitutional Court also positions itself as a Europe-friendly court. It has no competence to directly review Acts of Parliament against the yardstick of international or supranational law, but does so indirectly, through the equality clause laid down in Arts. 10 and 11 of the Constitution, and by interpreting fundamental rights in conformity with similar treaty rights. It accepts the primacy of international law over national legislation 26 and readily refers preliminary questions to the ECJ concerning both interpretation and validity issues. 27 In the period 2000-2014, the Constitutional Court referred to the ECHR in 32% of its judgments, to EU law in 10% and to other international law in 18% of cases. 28 Also, it quoted both ECJ and ECtHR case law in 9% and 14.3% of its judgments, respectively. 29 On the other hand, the Constitutional Court has assumed the power to review parliamentary acts giving assent to treaties. 30 In this way, it indirectly reviews the content of treaties against the Constitution. In the case of a violation, the parliamentary act cannot be applied, and the treaty is deprived of legal power within the domestic legal order. Although the Court had shown reluctance to also consider petitions challenging Acts providing for assent to an EC/EU treaty, 31 Parliament has interfered to ensure the smooth implementation of EU law. As a result, the Constitutional Court no longer has jurisdiction to reply to preliminary references concerning an Act of assent to an EU Treaty or to the European Convention on Human Rights or its Protocols. 32 Consequently, EU treaties cannot be challenged before the Constitutional Court through the Act providing for assent, except by way of an annulment request. In such case, however, specific time limits lessen the effectiveness of this option, as the request has to be lodged before the Court within 60 days after publication of the Act. Legal concerns regarding EU treaties can still be raised by the legislation division of the Council of State. The Government is obliged to ask the Council's independent expert advice, but is not bound by it.
Until now, the Constitutional Court has seemed to accept the supremacy of EU law over the Constitution without limitations. Although in doctrine its stance regarding secondary norms of EU law has been called ambiguous, 33 the Court has refused to consider the validity of an EU directive or regulation, or the law implementing such act, if Parliament does not dispose of discretionary leeway. It has considered the unity of the European Union and has referred to the ECJ if the validity of an EU act has been at stake. 34 What is noteworthy is the Care Insurance case, where the Constitutional Court invalidated a Flemish statute following a preliminary ruling of the ECJ even though this cut across the constitutional criteria for the distribution of powers between the 26 It even regards itself explicitly as 'a guardian of EU law', see Const. Court No. 151/2003, 26 November 2003 It referred 24 preliminary questions to the ECJ in a period of 18 years (1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014). The frequency gradually increased, with four preliminary references in 2012 and in 2013. 28 De Jaegere 2017, p. 186-190. 29 Ibid. 30 For the first time in Const. Court. No. 26/91, 16 October 1991. 31 Const. Court No. 76/94, 18 October 1994. 32 Article 26, § 1bis Special Majority Law on the Constitutional Court. The Constitutional Court applied this rule even before the provision came into force, Const. Court No. 3/2004, 14 January 2004. 33 Cloots 2008 Const. Court No. 128/2009, 24 July 2009 Belgian federal level and the federated communities. 35 However, the Constitutional Court, while claiming to fully abide by ECJ rulings, sometimes deviates in a silent or hidden way. In one case, the Constitutional Court ignored an ECJ ruling that restrictions of intra-Community trade require a specific analysis on the basis of scientific studies. 36 In the Money Laundering case, the Constitutional Court explicitly stated that it followed the ECJ ruling, according to which the Directive did not violate Art. 6 ECHR, but it accepted the implementing law only in so far as it was given a broader interpretation than the one provided by the ECJ. 37 A more explicit example is the Bressol case, in which the Constitutional Court openly disagreed with the ECJ on whether the financial implications of students from other Member States could justify measures restricting access to higher education on the basis of nationality. 38

Democratic Control
1.4.1 Article 34 of the Constitution is a general enabling clause, which does not impose specific procedural requirements or substantive restrictions to a transfer of powers. A simple majority in Parliament suffices. If a treaty contains a provision that is contrary to the Constitution, ratification should be preceded by an amendment of the Constitution, which implies a renewal of Parliament and a two-thirds majority. In reality, however, this procedure is not followed and, as mentioned, Parliament has barred the possibility to refer a preliminary question to the Constitutional Court regarding the constitutionality of a parliamentary act giving assent to an EU Treaty or the ECHR.
Dual federalism, however, complicates the procedure. In Belgium, the federated entities ('Communities' and 'Regions') are treated as being at an equal level with the federal Government, and external relations are governed by the principle 'in foro interno, in foro externo'. As EU treaties are usually 'mixed treaties', comprising matters that in the national legal order belong to the field of competences of both the federal level and the federated entities, the approval of all federated parliaments is required. At the federal level, until May 2014, an ordinary majority in both the House of Representatives and the Senate was required. The Belgian constituent power did not seize the opportunity to transform the Senate into a more genuine chamber of the federated entities, to simplify the procedure and give federated parliaments the right 35 Const. Court Nos. 33/2001, 13 March 2001and 11/2009 Const. Court No. 28/2005, 9 February 2005. 37 Const. Court No. 10/2008, 23 January 2008. More on this case in Popelier 2012, p. 84. 38 Const. Court No. 89/2011, 31 May 2011 of approval only through the Senate. Instead, the constituent power unequivocally opted for a veto right for each subnational parliament, even the smallest amongst them, and denied the Senate the power to give approval to treaties. Theoretically, the Parliament of the German-Speaking Community could obstruct the coming into force of a European Treaty, even though, with 75,000 inhabitants, it represents less than 1% of the Belgian population. 39 Despite the functioning of an advisory committee on European Affairs composed of members of the House of Representatives as well as Belgian members of the European Parliament, 40 the involvement of Parliament in EU decision making is relatively weak. This was demonstrated in a study comparing parliamentary control capacity, based upon the strength of special parliamentary committees on European affairs, access to information and voting instructions. 41 As mentioned, Art. 168 of the Constitution contains specific information obligations in the case of negotiations on a revision of the EU treaties. The subsidiarity mechanism following from the subsidiarity protocol 42 is not enshrined in the Constitution. However, prior to this protocol, a special majority law inserted the obligation to inform regarding all normative acts of the European Commission and gave the federal and federated parliaments a right to give advice. 43 The federated parliaments are also involved in the subsidiarity procedure. The Belgian Declaration No. 51 holds that the term 'national parliaments' in the EU Treaties encompasses subnational parliaments in the Belgian legal order. 44 A co-operation agreement was signed by the eight chairs of the legislative assemblies in 2005, which was revised in 2008, and then again in 2017 in light of the latest state reform and the transformation of the Senate. A conflict may arise, as the reformed Senate no longer has powers in international and EU affairs, 45 whereas Art. 7 of the Protocol states that 'in the case of a bicameral Parliamentary system, each of the two chambers shall have one vote'. According to the co-operation agreement, each federated parliament can submit a reasoned statement, and votes are cast in such a way that federal and subnational opinions are positioned next to one another, without fostering institutional dialogue. 46 The revised co-operation agreement does not differ in this respect.  46 Popelier and Vandenbruwaene 2011, p. 223. referendums, it is inferred from Art. 33, which refers to the 'Nation' as the source of all powers instead of the 'People', and which states that all powers are exercised in the manner laid down in the Constitution. Hence, referendums can only be held in so far as the Constitution allows for it. One nation-wide (advisory) referendum was held nevertheless, in 1950, concerning the position of King Leopold III after World War II. As this referendum aggravated the political crisis it was intended to resolve, nation-wide referendums are not only considered unconstitutional, but they are also regarded as a threat to the delicate balance between the two major language groups which constitute the divided Belgian state. The reason is that the outcome of a referendum may clearly demonstrate the cleavage between the Flemings and francophone people, while lacking the instruments to mitigate the differences. 47 The Constitution does explicitly allow for local advisory referendums and, since the recent sixth state reform, gives the right to organise advisory referendums to the federated Regions within their exclusive spheres of competence. 48 As EU treaties are mixed treaties, regional referendums regarding the approval of these treaties are excluded. Regularly, proposals are submitted in the federal Parliament aimed at enabling or requiring the organisation of referendums regarding the approval of (EU) treaties in general, 49 a particular EU treaty 50 or the accession of a (possible) new Member State. 51 These proposals are initiated by members of various Flemish as well as francophone political parties, from left-wing to right-wing. Nevertheless, they are hardly ever discussed.
1.5 The Reasons for, and the Role of, EU Amendments 1.5.1-1.5.2 Reasons for EU amendments Article 34, enabling the transfer of powers to international organisations, was inserted into the Constitution in 1970, in order to end ongoing debate on whether access to the European Communities was in conformity with the Constitution. Several constitutional experts were of the opinion that joining a supranational Europe violated Art. 33 of the Constitution, which states that all powers emanate from the Nation and are exercised in the manner laid down by the Constitution. 52 Other experts, along with the legislative chambers, argued that Art. 33 only referred to domestic issues and did not prevent the transfer of powers to international organisations. 53 The legislation division of the Council of State took a middle position, stating that the Constitution did not allow for the transfer of 'essential prerogatives' assigned to the national authorities. 54 The legislative assemblies, however, opted for a firm constitutional basis, considering the changing nature of modern international organisations. 55 Legality concerns also explain the insertion of a provision in Art. 8 of the Constitution, enabling the right to vote for non-Belgian citizens of the European Union. The Council of State had, on several occasions since 1980, pointed out that a constitutional amendment was required if non-Belgian residents were to be granted the right to vote for municipality councils. 56 Hence, unsurprisingly, the Council of State considered the law giving approval to the Treaty of Maastricht unconstitutional, as this Treaty introduced the right of every citizen of the Union residing in a Member State of which he is not a national, to vote and to stand as a candidate in municipal elections. 57 Parliament approved the treaty nevertheless, relying on the Government's argument that implementation of the treaty required the issuing of a directive. 58 The Constitution was finally amended in December 1998, four years after the issuing of the directive. 59 The rigid procedure for constitutional amendments, requiring the renewal of Parliament, as well as disagreement regarding the extension of the right to vote to non-EU citizens residing in Belgium, explain this belated action. 52 See in particular the opinion by Dor G., Ganshof van der Meersch W.J., De Visscher P. and Mast A., Parl. St. House of Representatives 1952-1953 See also Rimanque and Wouters 1998, p. 10. Both positions were reflected in the Council of State's advice of 12 January 1953, Parl. Doc. House of Representatives 1952Representatives -1953 Council of State, advice of 12 January 1953, Parl. Doc. House of Representatives 1952Representatives -1953. For this reason, it considered that approval of the European Defence Community Treaty violated the Constitution, unless justified by an inescapable and urgent necessity. The same position was held in subsequent advice, but ignored by the political actors. For an overview, see Velaers 1999, p. 236. 55 Commission Report, Parl. Doc. Senate 1969-1970 Council of State, Advice of 22 October 1980, Parl. Doc. House of Representatives 1985Representatives -1986. For an overview, see Velaers 1999, p. 59. 57 Advice of 6 May 1992, Parl. Doc. 1991, 48-482/1. 58 Parl. Doc. House of Representatives, Special Session 1991. The Council of State refuted these arguments: Advice of 6 May 1992, Parl. Doc. 1991 Council Directive 94/80/EC of 19 December 1994 laying down detailed arrangements for the exercise of the right to vote and to stand as a candidate in municipal elections by citizens of the Union residing in a Member State of which they are not nationals, [1994] OJ L 368/38.

1.5.3
The role of the Belgian Constitution in a multilevel environment Legal systems within the EU that are obliged to implement EU law in the domestic legal order are faced with the question of the extent to which limitations of power that follow from external sources can be accepted, while maintaining legitimacy within the legal order. Two main approaches can be discerned: an 'efficacy approach', which is predominantly occupied by the concern for efficient through-put of EU law, and a 'legitimacy approach', which is specifically concerned with providing legitimacy to inflowing EU law. 60 If a legitimacy approach is adopted, ideally, (a) the transfer of powers is submitted to special procedural and/or substantive conditions, (b) the precedence of EU law over the constitution is contested and (c) constitutional or supreme courts play the role of watchdogs over the constitution, assuming the power to ultimately delineate competences. If an efficacy approach is adopted, (a) the transfer of powers to the EU is allowed without special formal conditions, (b) the precedence of EU law over national law, including the constitution, is uncontested and (c) the judicial review of EU laws and treaties is constrained.
In Belgium, an efficacy approach clearly dominates. First of all, Art. 34 of the Constitution that allows for the transfer of powers does not impose specific conditions other than a law adopted by a simple majority (a). The precedence of EU law over the Constitution is uncontested (b) and the courts, including the Constitutional Court, are Europe-friendly (c). This is in line with the general approach towards European integration that Belgium has taken from the outset, along with other small countries such as the Netherlands and Luxembourg, because national interests in terms of both the economy and international relations have coincided with EU interests. 61 Of course, public sentiment towards the European Union evolves, in which case an efficacy approach may harm the perceived legitimacy of the European project. Until now, Belgian citizens have still been positive about the EU and its democratic functioning, when compared to other citizens of the EU. 62 A recent survey nonetheless reveals that support for the European integration project is decreasing amongst young adults. 63 The efficacy approach is somewhat undermined by the consequences of dual federalism, as every federated entity has to give assent to an EU treaty. The sixth state reform gave the opportunity for a more efficient procedure. As the Belgian Senate was transformed into a genuine chamber of the federated entities, it would have been sensible to simplify the procedure and give the federated entities the right of approval only through the Senate. In that case, the federated entities would have been denied a veto right, but they would still have been able to discuss a treaty 60 Popelier 2014a, pp. 300-319. 61 Bribosia 1998, p. 32. 62 See the Belgian report for the Standard Eurobarometer 80, L'opinion publique dans l'Union européenne -Rapport National Belgique, fall 2013, http://ec.europa.eu/public_opinion/archives/ eb/eb80/eb80_be_fr_nat.pdf. 63 Elchardus and Te Braak 2014. jointly, and veto the treaty under ordinary or specific majority requirements. By contrast, the Belgian constituent power opted for a more confederal approach and maintained the federated entities' veto rights, while depriving the Senate of its right of approval. 64 2 Constitutional Rights, the Rule of Law and EU Law

The Belgian Constitution clusters the constitutional rights and freedoms in
Title II Constitution titled 'on Belgians and their rights'. 65 This chapter is quite extensive as to the number and nature of constitutional rights entrenched therein, including the rights of the child and several social and economic rights (the right to education, work, housing). Certain classic fundamental rights included in the Constitution provide broader protection than analogous rights entrenched in international or regional treaties, e.g. prohibition of the imposition of pre-emptive measures which may hinder the enjoyment of specific rights and freedoms such as the right to enter into associations. 66 The Constitution provides for a number of general principles of law without, however, formally distinguishing between principles and rights. For example, the Constitution provides for the prohibition of retroactive legislation or punishment, or the legality principle (nulla poena sine lege) (Arts. 12 and 14 Constitution). Other general principles, such as the proportionality principle, legal certainty and legitimate expectations have not been entrenched in the Constitution.
Constitutional rights are enforceable in courts. First, the Constitutional Court provides centralised constitutionality review, by examining the compatibility of legislation with the constitutional rights entrenched in Chapter II of the Constitution and a given number of other constitutional rights. If the Court finds legislation to be incompatible, it annuls the legislation. Secondly, ordinary courts and administrative courts provide decentralised review. If they find secondary legislation to violate the Constitution or statutes to violate international treaties, they can disapply (not annul) the provisions in question or provide a constitutionally conforming interpretation of the legislation. The Act on the Constitutional Court regulates the interaction between the ordinary or administrative courts and the Constitutional 64 On the Belgian confederal approach, compared to the UK centralist and the German federal approach, see Popelier 2014b, p. 17. 65 A limited number of fundamental rights have been entrenched in other chapters, including rights concerning fairness in taxation (Arts. 170-171). 66 Article 27 Constitution.
Court. 67 This Act provides for the rules applicable when these courts are obliged to make a reference to the Constitutional Court by means of a preliminary reference procedure.

2.1.2
There is no general limitation clause in the Belgian Constitution. Some specific provisions establishing constitutional rights provide for limitation clauses. The general approach to these limitations is that, in line with the rule of law, limitations to constitutional rights can only be provided by law. 68 For example, the Belgian Constitution provides for a limitation to the right of peaceful assembly, namely that it must be in accordance with the law. 69 As such, Parliament is given a wide discretion to regulate the conditions and criteria for peaceful assembly.
However, such limitations are not without restriction. First, in principle, preventive measures to the exercise of constitutional rights and freedoms are prohibited, 70 in order to ensure the broadest protection of personal freedom. 71 For example, while Parliament may limit the right of peaceful assembly, it may not submit peaceful assembly to prior authorisation. 72 In addition, certain material limitations have been entrenched in specific provisions. For example, the Belgian Constitution provides that no one can be deprived of his or her property except in the case of expropriation for a public purpose, in the cases established by law and in return for fair compensation remunerated beforehand. 73 2.1.3 The Belgian concept of the rule of law, influenced by the classic French notion as developed during the Enlightenment, focuses on protection against arbitrary power. This notion is articulated in formal as well as in material requirements to the exercise of power by government. The Belgian conception of the rule of law (état de droit) is currently understood as protection against the arbitrary use of power by public authorities by requiring that public power be exercised in line with the existing and applicable legal norms. 74 There is no separate category in the Constitution regarding the rule of law, nor a specific title. However, it is without any doubt that the Belgian polity and Constitution are based on this notion. First, the main principles of the formal concept of the rule of law are explicitly entrenched in the Constitution, in particular the separation of powers (Title III, Title IV, Title V). Secondly, the underpinning 67 Special Act of 6 January 1989 on the Constitutional Court, Official Gazette 7 January 1989. 68 Van Delanotte considers this an example of the immense trust the 19th century constitutionalists put in Parliament. Vande Lanotte and Goedertier 2010, p. 281. 69 Article 26 Belgian Constitution. 70 This notion is mentioned explicitly in Arts. 19, 24, 25, 26 and 27 of the Constitution. However, jurisprudence accepts that this prohibition is of general nature and applies in principle to all constitutional rights and freedoms. Wigny 1952, pp. 267-269 and Alen 1995, p. 499. 71 Wigny 1952 The only exception provided are gatherings in public space. 73 Article 16 Belgian Constitution. 74 Popelier 1997, p. 97;Dujardin et al. 2014, p. 367;Mast and Dujardin 1985, p. 23;Allen 1995, p. 12. material criteria of this principle are also entrenched as specific rights in the Constitution, such as the equality of all persons before the law (Art. 10), the application of the law without discrimination (Art. 11) and the legality principle with regard to punishments (Art. 14).
Protection of the rule of law has been invoked before the Constitutional Court as a general principle of law of constitutional nature and, thus, the Constitutional Court has been asked to protect given rights read in the light of this general principle. 75 In several cases the Constitutional Court has reiterated that Belgium is governed by the rule of law and that such conclusion follows from the Constitution itself. The Constitutional Court has held that the Belgian polity is conceived as a state under the rule of law. 76 Consequently, the Constitutional Court has protected several legal principles and rights on the basis of protection of this notion, such as the legality principle and equality principle. In particular, the Constitutional Court has stated explicitly in several judgments that protection of the rule of law implies that public authorities are subjected to the law and, thus, government is to exercise power in line with the applicable legal norms. 77 The Constitutional Court additionally protects the material requirements of the rule of law, in particular the protection of constitutional rights and freedoms. The Court has held that protection of the rights of defence and the right to a fair trial ensue from protection of the rule of law by the Belgian legal order. 78

The Balancing of Fundamental Rights with Economic
Free Movement Rights 2.2.1 Historic reasons explain the absence of systemic conflicts between the protection of fundamental rights and economic free movement rights in Belgium. For over 150 years, the Belgian Constitution played only a marginal role in Belgian case law, given that courts were not allowed to review legislation for compatibility with the Constitution. 79 While courts could provide for a constitutionally conforming interpretation, 80 the absence of constitutional review restricted the development of a true constitutional jurisprudential culture. Belgian courts were in contrast exposed to the law of the European Community and later of the European Union early on. Belgium was a founding father of the EC and, therefore, the economic free movement rights as developed by the European Community were adopted in the Belgian legal sphere well before the development of constitutional review. In consequence, courts have in general been lenient towards accommodating economic free movement rights, in particular the free movement of goods. Already in 1971, the Court of Cassation proclaimed that domestic law should be set aside when incompatible with directly applicable international law provisions, including European Economic Community rules. 81 As a result, Belgian courts have interpreted domestic norms in line with EU law and, if such coherent interpretation has not been possible, have set aside these norms.
A jurisprudential discussion on the constitutional limits of the precedence of these economic free movement rights of EU pedigree is thus recent. Two evolutions in Belgian constitutional history have put the automatic acceptance of the primacy of EU law over domestic norms into question. First, the development of constitutional review by the establishment of the Constitutional Court awakened a constitutional consciousness within Belgian academic, judicial and political circles. 82 Secondly, during the last three decennia Belgium has swiftly transformed from a unitary state to a federal state whereby competences are divided between the federal state and the federated Communities and Regions. 83 The equilibriums between the federal state and the Regions and Communities are key to the functioning of the Belgian state and have been entrenched in the Constitution or in legislation of constitutional nature. Consequently, certain EU rules and ECJ jurisprudence touching upon these balances have sparked debate on the limits of the unconditional acceptance of the primacy of EU law. 84 Nevertheless, the interaction between the protection of constitutional rights and economic free movement rights is in general not considered as problematic. The Constitutional Court has adopted a pragmatic approach: if a conflict occurs between constitutional rights and economic free movement rights, the Court will engage in the discussion by sending preliminary questions to the ECJ requesting a decision on 81 Cass. 27 may 1971, Arr. Cass. 1971 As was explained in Sect. 1.1, the Belgian Constitutional Court was established in 1980 in order to guard the division of competences between the federal state and the regional entities. The competences of the Court were extended over the course of two decennia providing the Court with the competence to review legislation on its compatibility with the constitutional rights and freedoms entrenched in Title II of the Constitution. Finally, the original name of the Court, 'the Arbitrage Court', was replaced by 'Belgian Constitutional Court', in recognition of the evolution of the court from an arbiter between the federal state and regional entities to a fully fledged modern constitutional court. 83  the compatibility between the free movement rights and EU fundamental rights. Thus, the potential conflict between a given right and an economic free movement right is not framed as a conflict between a constitutional right and a free movement right, but as a conflict between a (EU) fundamental right and a free movement right. As a result, the Constitutional Court avoids open conflicts between EU law and constitutional law. However, in the literature, certain scholars state that there are constitutional limits to the application of EU law in the Belgian legal order, 85 for example as regards the balancing of market freedoms and the right to strike or protest (see Sect. 2.6).

2.3.1-2.3.5 The reception and enforcement of the European Arrest Warrant
The implementation of the EAW in Belgian law and its application The European Arrest Warrant (EAW) was implemented in Belgium in 2003. 86 The Belgian Parliament copied the European Arrest Warrant Framework Decision (EAW Framework Decision) almost literally in the implementing act. 87 The EAW implied essential changes to the Belgian legislation concerning extradition that was applicable before the introduction of the EAW. 88 First, the Belgian law entrenched the principle of double criminality. A person could only be extradited if the offence for which extradition was requested was also accepted as an offence under Belgian law and was punishable in Belgium and in the requesting state by a prison sentence exceeding one year. The EAW meant that certain exceptions to this principle of double criminality had to be accepted. Secondly, the Belgian law provided that Belgian judges could refuse extradition if the person to be extradited held Belgian nationality. The EAW does not allow for such exception. Some specifications were, however, introduced, in particular with regard to crimes for which the requirement of double criminality will continue to apply. 89 The Belgian law stipulates explicitly that abortion and euthanasia will not be considered manslaughter under the list of crimes for which the criterion of double criminality of the offence in the requesting state and Belgium are no longer required. 85 Maintaining that the Constitutional Court considers the Constitution supreme Craig 2004, p. 37;Bribosia 1998, pp. 21-22;Bombois 2004, pp. 143-150. Highlighting that the Constitutional Court has not embraced such vision explicitly Popelier 2008, p. 48 andBeirlaen 1992, p. 150. 86  The EAW and constitutional challenges Given the essential changes imposed by the EAW on the Belgian system of extradition, it came as no surprise that the EAW, through implementation in Belgium, was tested before the Constitutional Court.
The first decision of the Constitutional Court on the EAW resulted from a procedure initiated by the NGO Advocaten voor de Wereld. 90 The NGO advocated that the absence of the double criminality (legality principle) requirement for extradition on the basis of an EAW violated the prohibition on discrimination and the right to equal treatment as stipulated in Arts. 10 and 11 of the Constitution. The Constitutional Court referred the question to the ECJ for a preliminary ruling, arguing that the absence of the double criminality principle in the implementing act followed directly from the EAW Framework Decision and, consequently, the question before the Constitutional Court raised an important point on the compatibility between the EAW Framework Decision and fundamental rights. 91 In its 2007 judgment Advocaten voor de Wereld the ECJ decided on the preliminary questions referred by the Belgian Constitutional Court regarding the compatibility of the EAW Framework Decision and the legality and equality principles. 92 The ECJ accepted that the Framework Decision was to respect fundamental rights, in particular those guaranteed in the ECHR and as they result from the constitutional provisions common to the Member States. For this reason, the Framework Decision should indeed respect the principle of the legality of criminal offences and penalties and the principle of equality and non-discrimination. 93 However, the ECJ decided that the Framework Decision complied with those principles.
As regards the legality principle, the ECJ held that this principle does not require the double criminality of offences, but only that legislation must clearly define offences and the penalties they attract. 94 The ECJ repeatedly emphasised that the Framework Decision by no means intended to harmonise the definition of offences among the Member States, but only to improve mutual co-operation in the field of extradition for the most serious crimes. It was not the intention of the Framework Decision to provide for the definition of offences and penalties, but merely to set the minimum criteria for those offences with regard to which the EAW applies. The Court found the Framework Decision to comply with this principle given that it only provides for extradition for those offences which are punishable in the issuing Member State 'as they are defined by the law of the issuing Member State'. 95 90 Const. Court No. 124/2005, 13 July 2005 Both at the level of the Constitutional Court and the ECJ more technical judicial questions were raised concerning the competence to enact the Framework Decision and implementing act. However, for the purpose of this contribution, the focus has been put on the fundamental rights issues concerned. 92  The ECJ argued that the Framework Decision therefore only provides for extradition if the issuing state complies with the legality principle. 96 As for the equality principle, the ECJ held that the choice of the 32 categories of offences for which the double criminality principle does not apply was objectively justified on the basis of several features, including the seriousness of the offences in adversely affecting public order and safety. 97 Upon the return of the preliminary judgment of the ECJ, the Constitutional Court reverted extensively to the ECJ judgment, blending the reasoning of the ECJ with other arguments based on the preparatory works of the implementing act. 98 The Constitutional Court emphasised that the absence of the double criminality principle for certain categories of offences did not imply that there is no judicial control by the judicial authorities. The Court stated that the double criminality principle was replaced by other criteria. 99 The Court in particular referred to the criteria in the implementing act which define the cases in which the domestic authorities are even obliged to refuse extradition, such as compliance with the non bis in idem principle or age restrictions. 100 It held that in view of the above, there was no violation of the legality and equality principles. 101 This judgment is a typical example of the approach of the Constitutional Court vis-à-vis ECJ judgments: the Court will extensively refer to the ECJ judgment, but will add its own reasoning based on its previous case law and parliamentary works, blending the EU contentieux with the domestic constitutional contentieux.
The implementing act was tested for a second time before the Constitutional Court in 2009. 102 This case originated from a preliminary reference by an investigation court. The referring court questioned whether Art. 8 of the implementing 96 Case C-303/05 Advocaten voor de Wereld, n. 92, paras. 52-53. 97 Ibid., paras. 57-58. 98 Const. Court No. 128/2007, 10 October 2007 In its reasoning the Constitutional Court considered the compatibility of the implementing act with the constitutional rights from the perspective of Art. 6 ECHR. However, in its original request, the NGO questioned the compatibility of the prohibition of the constitutional equality principles in the light of Art. 6 ECHR, but also the constitutional right to have access to the legally provided tribunal (Art. 13 Constitution) and the right to liberty (Art. 12 Constitution). In the reasoning of the Constitutional Court, these articles play no role and no distinct reasoning is provided on the basis of these provisions. More in general, the case law of the Constitutional Court on procedural rights is almost entirely developed on the basis of Art. 6 ECHR and not on the basis of Art. 13 of the Constitution. The same is true with regard to Art. 5 ECHR and Art. 12 of the Constitution. 102 Const. Court No. 128/2009, 24 July 2009. In contrast to the Advocaten case, this judgment did not follow an application for annulment by an NGO, but originated from a preliminary reference from an investigation court, i.e. a court that decides at the end of a criminal investigation whether the case will be referred to a court which can decide on the merits of the case. In this case, the referring court limited the preliminary reference to a question on the compatibility of the implementing act with the right to equality (Arts. 10 and 11 Constitution). act violated the prohibition on discrimination and the right to equal treatment as stipulated in Arts. 10 and 11 of the Constitution. Article 8 of the implementing act provides that a judge cannot refuse the extradition of a person because the foreign judgment on the basis of which the European arrest warrant was delivered resulted from a trial in absentia. 103 The Constitutional Court decided again that the provisions of the implementing act followed directly from the European Framework Decision and for that reason referred the question to the ECJ.
In contrast to the Melloni case, the preliminary question by the Constitutional Court did not question the compatibility of extradition in the case of an in absentia trial as such. 104 The Belgian Constitutional Court merely asked whether extradition, in the case of an in absentia trial where the person concerned would have the opportunity in the requesting state to apply for a retrial, could be rendered conditional upon the return of the extradited person for the execution of the sentence. The ECJ in its judgment did not consider the case from a fundamental rights perspective. 105 The ECJ decided that the Framework Decision was to be interpreted in such manner as to allow for judicial authorities to render the extradition of a person conditional upon his or her return to the executing state to serve the sentence, if the sentence was imposed in absentia. 106 The Constitutional Court relied on the ECJ judgment when deciding the case, holding that the implementing act was to be interpreted so that judicial authorities could render the extradition conditional upon the return of the person extradited to serve the sentence if this person was convicted in absentia. 107 The Constitutional Court did, however, refer to applicable fundamental rights criteria, in particular the right to a fair trial and ECtHR case law, in deciding that the provision would not be compatible with the right to equal treatment unless it were interpreted as rendering the extradition conditional upon the return of the person to Belgium to serve the sentence in the case of an in absentia trial. 108 Again, the Constitutional Court closely followed the ECJ judgment but added its own reasoning.

Other Relevant Issues in Fundamental Rights and Criminal Law
The Belgian constitutional case law regarding criminal procedure clearly shows the dual impact EU law can have on fundamental rights protection: under certain circumstances EU law might limit the guarantees in domestic constitutional law while 103 Const. Court No. 28/2011, 24 105 There was no reference in the judgment to fundamental rights nor a wider discussion on the compatibility of extradition in cases involving in absentia trial and fundamental rights. 106 Case C-306/09 I.B., supra n. 104, para. 61. 107 Const. Court No. 28/2011, 24 February 2011 Ibid., para. B.5. on other occasions EU law might actually improve the standards of protection. The Money Laundering Directive is an example of such limitation, while the so-called Salduz-Directive exemplifies the potential for upgrading standards of protection.
The implementation of the Money Laundering Directive 109 in Belgian law was highly contested due to the obligation for independent legal professionals, including lawyers, to report information in a listed number of circumstances. This clearly implied a limitation of the professional secrecy of lawyers. The protection of professional secrecy of lawyers is not explicitly set out in the Belgian Constitution. However, it is considered in Belgium as an elementary condition for ensuring the right to an equal and fair trial as protected under Art. 6 ECHR as well as the lawyer-client privilege as protected under Art. 8 ECHR. Therefore, the Belgian Bars asked the Constitutional Court to annul the domestic act implementing the Directive. 110 The Constitutional Court referred a preliminary question to the ECJ asking whether the obligation for professionals in the financial sector to report potential money laundering by clients to official authorities, as introduced by the Directive, violated the constitutional prohibition of discrimination read in the light of Art. 6 ECHR. 111 Given that the Belgian implementing act almost entirely copied the text of the Directive, a finding by the Constitutional Court that the implementing act violates fundamental rights would imply that the Money Laundering Directive suffered the same flaws.
In its judgment Ordre des barreaux francophones et germanophone, the ECJ answered that the Directive establishing this obligation did not violate the constitutional right to non-discrimination read in the light of Art. 6 ECHR. 112 The ECJ indicated that sufficient guarantees had been provided in the Directive, given that the obligation to report is limited to the execution of certain transactions, essentially those of a financial nature or concerning real estate, and no obligation to report was provided where a lawyer is called upon to assist or represent a client before the courts. 113 When the Constitutional Court was to decide the case after the ECJ judgment, it referred to the ECJ judgment, stating that the judgment had found that there was no violation of Art. 6 ECHR. 114 110 Given the federal structure of Belgium, the Bar of Lawyers is divided into a Dutch-speaking section, a French-and German-speaking section, and a Dutch-speaking section and French-speaking section in Brussels. 111  review whether the implementing act was compatible with Arts. 6 and 8 ECHR. The Constitutional Court had limited its preliminary question to the ECJ to the aspect of procedural rights, i.e. the compatibility with Art. 6 ECHR. It could therefore not rely on the ECJ judgment upon reviewing the compatibility with Art. 8 ECHR. The Court held that the implementing act did not violate the Constitution read in the light of Arts. 6 and 8 ECHR in so far as the act was interpreted as exempting lawyers from reporting information in the exercise of the essential activities of their profession. 115 It maintained that this also applies to transactions listed in the Directive for which the reporting obligation is provided. It is unclear whether the refusal of the Constitutional Court to send another preliminary reference on compatibility with Art. 8 ECHR implied that the Court meant to emphasise its own authority to deal with such issues or, alternatively, whether the refusal was just a matter of pragmatics to ensure that the case would be decided within due time. 116 The introduction of the so-called Salduz-Directive, 117 in contrast, will result in a better standard of protection of fundamental rights in comparison to the current standard held by the Constitutional Court. This Directive provides for the right to the assistance of a lawyer during an interrogation by police and judicial authorities. The Belgian provisions regulating consultation and assistance rights prior and during interrogations limit the assistance of a lawyer during an interrogation to persons deprived of liberty. 118 The Belgian Constitutional Court based its reasoning on the ECtHR jurisprudence to find that the limitation to persons in custody did not violate Art. 6 ECHR. 119 The implementation of the Directive implied the extension of this right to all persons who are interrogated and thus improve the standard of protection of procedural rights currently held by the Constitutional Court to be compatible with Art. 6 ECHR.
The Total Belgium case of the Constitutional Court is a second example where a reference to EU law has had a positive effect on the protection of fundamental rights in criminal proceedings. 120 This case concerned the compatibility of the sanctions provided in Belgian law for evasion of taxes on mineral oils with the prohibition of disproportionate sanctions. The Act in question seriously limited the discretion of 115 Ibid., para. B.9.6. 116 However, in subsequent cases no similar approach was taken, suggesting that this judgment should not be regarded as a principled stance of defiance towards the ECJ case law.  Const. Court No. 81/2007, 7 June 2007 judges to amend the fines provided in the Act, e.g. the judge could not adapt the fines mentioned to the circumstances of the case and take mitigating circumstances into account. 121 Given that this Act implemented EU measures, the Constitutional Court relied on ECJ case law and found that the sanctions were to be effective but not disproportionate. The Constitutional Court in particular referred to the applicable article in the EU Charter of Fundamental Rights, even though the Charter was not yet in force at the time of the judgment. 122 The reason for this delay in implementation is of a less principled nature than was the case in Sweden. Belgium is in general slow in implementing directives and has already been penalised on numerous accounts by the European Commission for a lack of efficient and timely implementation. In reaction to threats by the European Commission to penalise Belgium for non-implementation of the Data Retention Directive, the Government speeded up the implementation of the Directive in the summer of July 2013. For this reason, the Government left only little time for debate or interventions by experts during the implementation by Parliament.

The Data Retention
The former Belgian Deputy Prime Minister and public law professor Vande Lanotte had suggested that the judgment of the ECJ must not have consequences for the Belgian act, given that more guarantees for fundamental rights were entrenched in the implementing act. 127 This position was not followed by the Constitutional Court. Given that the Belgian act is almost a literal copy of the European Directive, in particular with regard to the provisions criticised by the ECJ, the Constitutional Court found the implementing act to be in violation of the right of privacy as protected by the Constitution, read in the light of EU fundamental rights and the ECHR. It explicitly mentioned that the implementing act violated EU fundamental rights for the same reason as stated by the ECJ. 128 Upon the annulment by the Constitutional Court, the Belgian legislator did not await a new European initiative but rather introduced a new Act in 2016. This Act still allowed for bulk retention of communication data but limited the access to such data for law enforcement. After the new ECJ judgment Tele2/Watson in which the ECJ found bulk retention of communication data to be in violation of the protection of personal data and privacy, it was expected that the Constitutional Court would once again strike down the Belgian Act. Instead, the Constitutional Court sent new preliminary questions to the ECJ implicitly criticising the Luxembourg case law by highlighting the importance of bulk retention for criminal investigations. The preliminary questions are a clear invitation for the ECJ to reconsider its position or at least provide some margin to the national courts. 129

The question of secret legislation by EU institutions has not risen in Belgium.
Most probably, it would not be considered as binding upon individuals. According to Art. 190 of the Constitution, laws are not binding upon third parties until publication 'in the manner described by the law'. This article is considered to articulate a more general principle of law according to which citizens can only be bound by laws if they have been properly published. 130 The Belgian Constitutional Court interprets this article in the light of the rule of law, to require that authorities make substantial efforts to ensure equal access to the law for each person. 131 The duty to publish includes annexes with normative content. 132 Also, legislative acts that simply refer to provisions in an EU directive do not comply with Art. 190 of the Constitution, if the directive has not been published in the Belgian Official Gazette. 133 While unpublished law cannot have any effect on third parties, it 128 Const. Court No. 84/2015, 11 June 2015 Const. Court. No. 96/2018, 19 See Velaers 2003, pp. 33-34. 131 Const. Court No. 106/2004, 16 June 2004. Confirmed in Const. Court No. 10/2007, 17 January 2007, however, without explicitly mentioning the 'Rechtsstaat' principle. 132 Council of State 22 October 1986. 133 Cass. 26 April 1990, Arr. Cass. 1989-90, 1115 remains valid and can have consequences: an individual may claim rights conferred by an unpublished law, if he or she meets the conditions laid down in the act. 134 2.6 Rights and General Principles of Law in the Context of Market Regulation: Property Rights, Legal Certainty, Non-retroactivity and Proportionality 2.6.1 These issues have not been discussed at length in Belgian jurisprudence. This is not to say that market regulation has not impacted Belgian jurisprudence. However, in general a Euro-friendly stance has been taken towards EU measures concerning market regulation without fundamental constitutional issues concerning property rights or legal principles such as legal certainty being raised. If such measures have been considered problematic from a constitutional stance, the issues raised have concerned the compatibility of market regulation with the constitutional provisions regarding the federal structure of Belgium and the checks and balances between the state, region and communities, or with social rights. For example, the balancing of the market freedoms and the right to strike or protest have been considered by certain scholars to fall below the domestic protection of the protection of these rights. 135 2.7 The ESM Treaty and the Belgian Constitutional Order 2.7.1-2.7.3 There has been limited discussion on the constitutionality of the Treaty establishing the European Stability Mechanism (ESM Treaty) or other EU financial regulations following the economic and financial crisis. 136 In general, the ESM Treaty and other regulations have had only a limited impact on Belgian fundamental rights. During the implementation of the ESM Treaty constitutional arguments were absent from the discussions in Parliament. In general, these new norms did not result in public contestations due to the general Euro-friendly sentiments in Belgian society as well as the limited impact of the EU financial measures on Belgian law. 134 Council of State 24 February 1987, No. 27.569 (vzw Centrale voor Socialistisch Cultuurbeleid); Council of State 20 November 1956, No. 5.374 (Depaepe). 135 See Dorssemont and Jaspers 2007, pp. 2-14. 136 A procedure launched against the act consenting to the ESM Treaty was dismissed by the Constitutional Court as inadmissible for procedural reasons. Const. Court. No. 156/2012, 20 December 2012.

Indirect Judicial Review and the Belgian Judiciary
2.8.1 The co-operation of Belgian courts with the ECJ in numbers As mentioned, Belgian courts generally adopt a Euro-friendly approach and, thus, Belgian courts regularly refer preliminary questions to the ECJ. For this reason, lawyers and other legal practitioners are well aware of the preliminary reference procedure and will frequently suggest preliminary questions in their legal briefs. In view of this practice, it should not be surprising that several workshops have been organised and publications written to instruct lawyers how to write preliminary questions and convince courts to send these preliminary questions to the ECJ. As to quantity, the most remarkable feature of the approach by the Belgian judiciary is the number of preliminary references from the Belgian Constitutional Court. The Belgian Constitutional Court is one of the few constitutional courts that sends preliminary questions, and has sent the most preliminary questions of any constitutional court of an EU Member State. 137 At first, the Constitutional Court was hesitant to refer preliminary questions. 138 The Court sent its first preliminary question in 1997, hence more than a decade after its establishment. In this case the dispute originated from the different implementation of an EU directive 139 on the vocational training of general practitioners in the Flemish region and the other regions. 140 The underlying issue of this dispute was the different treatment between the federalised entities, which was politically highly sensitive. By sending a preliminary reference to the ECJ, the Constitutional Court to a certain extent 'outsourced' the politically sensitive issue. 141 This first preliminary reference already gives an indication for a hypothesis why the Belgian Constitutional Court frequently refers preliminary questions to the ECJ. The composition of the Constitutional Court is based on a federalist logic whereby judges are picked from the different language groups on the basis of a 137 On the remarkable position of the Belgian Constitutional Court, see Vandamme 2008, pp. 127-148. 138 See Van Nuffel 2005, pp. 46-47. 139 Council Directive 93/16/EEC of 5 April 1993 to facilitate the free movement of doctors and the mutual recognition of their diplomas, certificates and other evidence of formal qualifications, [1993] OJ L 165/1. 140 Const. Court No. 6/97, 19 February 1997 Const. Court No. 120/98, 3 December 1998. 141 The attraction to outsource such questions became very clear in the tobacco judgment of the Constitutional Court. The Belgian legislation on tobacco advertisement implementing European Directive 98/34/EC highly impacted on the Walloon sports industry, in particular Francorchamps Formula I races. The Constitutional Court in this case did not refer a preliminary question but decided the case itself relying on the applicable EU norms (See Judgment Constitutional Court 30 September 1999, No. 102/1999. However, the Constitutional Court was still reproached for rendering a 'political judgment'. Popelier and Voermans refer to this judgment as a failed attempt to depoliticise the case by relying on EU law. Popelier and Voermans 2015, p. 106. fixed division of the number of judges. 142 In consequence, to avoid a deadlock vote between the judges or to find 'external support' for a decision on sensitive issues relating to federalism, it might appear appealing to the Constitutional Court to send a preliminary question to the ECJ.
Since 2003 the Constitutional Court has more frequently referred preliminary questions. 143 At the time of submission of this report, the Constitutional Court has referred 26 preliminary questions to the ECJ. The website of the Constitutional Court provides a separate section with all the preliminary questions, including references to ECJ judgments as well as the Constitutional Court's referral judgment and final judgment. 144 The other courts also frequently refer preliminary questions. In total, Belgian courts have sent 739 preliminary references. 145 The Supreme Court has sent 90 preliminary references, the Council of State has sent 68 preliminary references and the other courts and tribunals have sent 553 preliminary references. Taking into account the relatively small population of Belgium, it is clear that Belgian courts refer preliminary questions more frequently in comparison to other EU Member States. The relatively small number of references by the highest courts in comparison to the lower courts cannot be attributed to a deferential approach of the highest courts. Rather, preliminary questions are in general already sent by the lower courts and thus these issues have in general already been resolved by the time the issues are presented before the highest courts. 146 2.8.2 The approach towards indirect judicial review The Belgian judiciary has been very open to indirect judicial review by the ECJ. With regard to the relationship between the Belgian highest courts and the ECJ, Belgian authors and judges have frequently labelled this relationship as harmonious or as a judicial dialogue. 147 When lower courts refer a preliminary question, they will in general simply apply the judgment of the ECJ regarding the preliminary question.
The Constitutional Court, however, will in general not limit itself to a referral to the ECJ judgment. Instead, the Constitutional Court will highlight the reasoning of the ECJ in the preliminary judgment, while adding its own reasoning to come to the same conclusion based on the parliamentary preparatory works and its own jurisprudence as well as the general jurisprudence of the ECtHR and the ECJ. 148 2.8.3 For constitutional review by, and statistical data of, the Belgian Constitutional Court, see Sect. 1.1. In particular, in the period 2000-2014, 73% of the cases were lodged by private parties: 45% by individuals and 28% by business entities. A breach of the Constitution was found in 31% of the judgments in the period 2009-2013 (279 out of 890 judgments): 26.5% in annulment procedures (65 out of 245 judgments) and 33% in preliminary decisions (214 out of 645 judgments).

Other Constitutional Rights and Principles
2.9.1 EU law does not only pose challenges to the material protection of fundamental rights, but also to the procedural protection of fundamental rights, in particular protection by the Constitutional Courts. The Belgian system of constitutional rights protection has been challenged by the ECJ case law on the limits to the procedural autonomy of the Member States, sparking a constitutional crisis.
In 2008 the Belgian Parliament introduced a new procedural rule that determined whether ordinary courts were first to submit a preliminary question to the ECJ or the Constitutional Court if concerns arise regarding the compatibility of domestic legislation with a given fundamental right that is partially or fully protected in the Belgian Constitution and in an international treaty, in particular in EU law or the ECHR, in an analogous manner. 149 The introduction of this rule resulted from a Supreme Court case in which the Court held that it was under no obligation to pose a constitutional question where the constitutional issue concurred with a potential infringement of an equivalent international norm. 150 It was feared that in every case where a legal norm might conflict with a fundamental right protected analogously by the Constitution and international law, ordinary courts would directly review the compatibility between this provision and international law, circumventing their obligation to send a preliminary question to the Constitutional Court in case of conflict between legislation and the Constitution. Moreover, if the norm under scrutiny fell within the scope of EU law, ordinary courts could prefer to send a preliminary question to the ECJ rather than to the Constitutional Court, reducing the importance of the Constitutional Court. Therefore, the new procedural rule imposed the chronological priority of the constitutional preliminary question over the preliminary procedure before the ECJ: the ordinary courts were first to send a preliminary question to the Constitutional Court, but remained free to send the question to the ECJ afterwards.
It was questioned whether this priority rule was compatible with EU law. In principle the Member States have extensive discretion with regard to procedural rules. However, when asked to review the compatibility of the French constitutional priority rule in the Melki case, the ECJ developed strict criteria for such priority rules. 151 The ECJ held that such a priority rule violated EU law if it implied that judges would lose their discretion to refer preliminary questions when they doubted the compatibility of domestic legislation with EU law. 152 This judgment meant a serious limitation of the procedural autonomy of domestic procedural law in the field of constitutional adjudication. It was questioned whether the Belgian priority rule would survive ECJ scrutiny in the light of the Melki judgment. 153 The ECJ was asked to review the compatibility of the Belgian priority rule with EU law. Given that the Belgian priority rule was the outcome of lengthy and highly sensitive discussions on the correct balance between the Supreme Court, the Council of State and the Constitutional Court, rejecting the rule as a violation of EU law would seriously undermine relations between the top Belgian courts. However, in Chartry, the ECJ refrained from deciding on the compatibility of the Belgian priority ruling since the underlying subject-matter of the dispute, i.e. taxation of activities carried out within the territory of Belgium, did not fall within the scope of EU law. 154 In the meantime, the Belgian Parliament amended the priority rule fully in view of the Melki case law.
This episode shows at least the potential for a conflict: whereas the domestic legislator intends to protect the prerogatives of the Constitutional Court, in particular the centralised review of legislation for compatibility with constitutional rights, the ECJ promotes the decentralised review of legislation in order to strengthen the effectiveness of EU law.  Dyevre 2012, pp. 318-322. 152 In this judgment the ECJ developed several requirements to guarantee the discretion of judges. See Velaers 2012, p. 332. 153 It was argued that the Belgian priority rule fully complied with these criteria. Velaers 2012, p. 338. 154 Case C-457/09 Chartry v. Belgium [2011] ECR I-00819. among the constitutional and supreme courts of the Member States. For example, with regard to the preliminary references regarding the EAW, it was clear that several supreme and constitutional courts doubted the compatibility of this Framework Decision and the implementing acts with constitutional rights. While the framing of the constitutional rights might diverge from one country to another, many constitutional and supreme courts were confronted with questions on the compatibility of the EAW implementing acts and constitutional rights. As such, it comes as no surprise that a second constitutional court referred a preliminary question on the constitutionality of fundamental rights and the EAW Framework Decision. 155 The same is true for the Money Laundering Directive. In almost all European Member States the professional secrecy of lawyers is protected as an essential guarantee for the rule of law. 156 While this privilege might be interpreted in the different Member States in various manners, under different provisionsthe right to a fair procedure and equality of arms, or the protection of privacy, or with different legal basesconstitutional law, ordinary law, jurisprudence or general principles of law, the concern has been shared by many of the highest courts in the European Union. 157 However, it is unclear whether addressing such issues from the perspective of common constitutional traditions would improve the reception of fundamental rights issues at the level of the ECJ. The examples mentioned not only show the commonality of certain fundamental rights concerns, but also the impact of the ECHR and the ECtHR case law. In both cases, the Belgian Constitutional Court did not so much rely on Belgian constitutional rights, but rather on the Constitution interpreted in the light of the Convention and ECtHR case law. In particular, ECtHR case law has ensured a common understanding of fundamental rights. As a consequence, a clash of EU law and common constitutional traditions often follows from a conflict between EU law and the ECHR. The Belgian Constitutional Court also frames its preliminary questions to the ECJ not as conflicts between EU law and constitutional rights, but as conflicts between EU law and the ECHR.

Common and Individual Constitutional Traditions
On the other hand, examples can be provided where a constitutional issue is particular to one or a limited number of Member States. In general, this particularity follows from the specific domestic state structure or historical and societal specificities. With regard to the Belgian context, it is without doubt that the language rights and language regulations following the federalisation of Belgium would be considered a constitutional issue that might trigger the Constitutional Court to revolt against EU law. 158 As such, the Belgian language rights as protected in the Constitution might be considered as the core of the Belgian constitutional identity. 159 Such conflict has not yet appeared.

Article 53 of the Charter and the Issue of Stricter
Constitutional Standards 2.11.1 There are two possible interpretations of Art. 53 of the Charter. According to the first interpretation, constitutional provisions providing for better protection of fundamental rights than provided by EU fundamental rights case law can limit the application of EU law in the domestic legal sphere. 160 This interpretation implies a limitation to the primacy of EU law. 161 A second interpretation provides that national courts cannot be compelled to rely on the Charter in cases before them if domestic constitutional provisions or international agreements provide for better protection. As Advocate General Bot has stated: 'Article 53 of the Charter also expresses the idea that the adoption of the Charter should not serve as a pretext for a Member State to reduce the protection of fundamental rights in the field of application of national law'. 162 The latter interpretation implies no limitation to the primacy of EU law. For this reason, it is without doubt that the latter interpretation will be preferred by the ECJ in view of the primacy doctrine as developed by the ECJ.
However, even in this more restricted interpretation of Art. 53 Charter, it can be expected that this provision will only scarcely be relied upon to resolve conflicts of different fundamental rights standards. Other provisions or interpretational tools appear more successful for providing a margin for the Member States to safeguard a higher level of protection, in particular the margin of discretion as well as the constitutional identity provision. 163 The underlying reason why such concepts are more attractive than the maximisation clause is that they do not require an assessment of which standard of fundamental rights protection is the highest, suggesting that the other standard is a lower standard of fundamental rights 158 The importance of this issue is for example the reason why Belgium has not ratified the Framework Convention for the Protection of National Minorities by the Council of Europe. 159 On the constitutional identity, see Van de Heyning 2012, at pp. 198-202. 160 Such interpretation was implied in the preliminary question of the Spanish Constitutional Court regarding the limitation to the EAW framework decision on the basis of a better protection of suspects in cases involving trials in absentia. Spanish Constitutional Court Auto 86/2011, 9 June 2011. 161 It has been argued that this was by no means the intention of the drafters. See for an overview Ladenburger 2012, pp. 174-175. 162 Opinion of AG Bot, in Case C-399/11 Melloni [2011] ECLI:EU:C:2012 Article 4 para. 2 TEU. protection. Rather, these concepts imply the particularity of a given system for which in a given circumstance and to a limited extent an exception to EU law can be provided.
It is probably due to this reason that its equivalent in the Convention, namely Art. 53 ECHR, has only been referred to by the ECtHR in a limited number of cases. 164 The ECtHR developed the doctrine of the margin of appreciation to provide for some flexibility and room for manoeuvre for the Member States and courts to uphold a domestic standard of fundamental rights protection.
The maximisation provision has not been relied upon frequently in domestic case law either. In the Belgian case law, the Supreme Court has only on one occasion explicitly referred to Art. 53 ECHR to refute an objection against the application of the domestic interpretation of the right to a trial before an independent judge. It was held that the Belgian interpretation was stricter than the interpretation provided by the ECtHR. The Supreme Court relied upon Art. 53 ECHR to find that a national court could provide for stricter criteria than the ECtHR when reviewing the independence of a judge as protected under Art. 6 ECHR. 165 The Constitutional Court has made several references to Art. 53 ECHR with rather diverse outcomes. 166 In most cases the reference to this article has not had any impact on the actual judgment. 167 In one case the Constitutional Court relied on Art. 53 ECHR to decide that the provisions in the ECHR and international law on the right to marriage could not be interpreted so as to restrict the domestic legislator from extending the right to marriage to homosexual couples. 168 In another judgment the Constitutional Court held that a reference to Art. 53 ECHR could not be relied upon to extend the interpretation of an ECHR provision. 169 Finally, in a number of judgments the Constitutional Court held that Art. 53 ECHR implied that the domestic legislator was both to uphold the material interpretation of the legality principle as entrenched in the ECHR (legislative norms must be accessible and foreseeable) as well as the formal interpretation entrenched in the Belgian Constitution (interference of rights must be based upon a statute). 170 In these cases, the Court effectively relied on Art. 53 ECHR to combine constitutional and conventional protection in order to strengthen fundamental rights protection. 171 164 See on this issue Liisberg 2001. 165 Cass. (2e k.) 11 December 1996, AR P.96.1460.F (Benaïssa/Dutroux). 166 For an overview, see Van de Heyning 2011, pp. 495-536. 167 Const. Court No. 77/94, 18 October 1994;Const. Court No. 34/96, 15 May 1996;Const. Court No. 76/96, 18 December 1996;Const. Court No. 49/2001, 18 April 2001Const. Court No. 33/94, 26 April 1994. 168 Const. Court No. 159/2004, 20 October 2004. 169 Const. Court No. 81/95, 14 December 1995 In this case the European Commission had explicitly stated that compulsory military service should not be regarded as forced labour under Art. 4 ECHR. The Constitutional Court stated that Art. 53 ECHR did not alter this finding. 170 Const. Court No. 202/2004, 21 December 2004Const. Court No. 131/2005, 19 July 2005Const. Court No. 151/2006, 18 October 2006. 171 Popelier 2011

Democratic Debate on Constitutional Rights and Values
2.12.1-2.12.3 The stance of the public as well as the political class vis-à-vis EU law and the European Union more in general has been labelled in the literature as a permissive consensus. 172 In general, political parties take a pro-European stance.
Research shows that political parties vote in large majorities in favour of the ratification and implementation of EU norms. 173 Also, public debate regarding the limits of EU law in the Belgium domestic sphere is exceptional. 174 Consequently, the question whether EU law may restrict constitutional rights and values is only occasionally debated in view of a specific directive or new judgment of the ECJ, and in general, the debate is limited to human rights organisations or professional actors, such as the Belgian Bars of Lawyers in view of EU norms touching upon the protection of procedural rights. It appears that more political debate on the EU has emerged due to the financial and economic crisis and the budgetary measures taken by the EU. 175 In these discussions the central question is not so much whether more or less Europe is needed, but rather whether a more social or liberal approach should be taken. However, there is no conclusive research to date to support the claim that the renewed political interest in EU politics has also triggered public debate on EU issues and the limits of the EU. The 2014 barometer of the European Commission does not show an increased interest in European politics. 176 On the other hand, a high number of Belgian citizens replied that they agreed with the statement that economic reforms would be more effective if they were co-ordinated on the European level. 177 Thus, Belgian public opinion could be described as 'EU-friendly but uninterested'. Specifically with regard to the drafting of the EAW, there was only limited public engagement. However, several public actors did raise constitutional issues during the drafting process, in particular human rights institutions such as the 172 Whereas this position of permissive consensus changed in many Member States after the Maastricht Treaty, this position has not altered in Belgium. Bursens et al. 2010, pp. 16-22 and Beyers 1998. 173 Bursens, et al. 2010 The permissive consensus in Belgium does not imply a great interest in EU issues in public debate. In general terms, research shows that public debate on EU issues or interest in EU politics is very limited, in contrast to domestic political issues. In particular in the area of criminal proceedings, concern has been voiced regarding the impact of EU law, including ECJ case law, on the domestic level of protection of the procedural rights of suspects. Examples that have been mentioned above include the impact on the legal privilege of lawyers following adoption of the Money Laundering Directive and the procedural safeguards for suspects and accused persons following the introduction of the EAW. 179 In other areas of law, however, it has also been noted that EU law, including ECJ case law, has improved the level of protection. With regard to the Belgian legal order, this has particularly been the case with regard to age and gender discrimination. The Test-Achats case is a well-known example. 180 The EU Directive in question intended to end all discrimination on the basis of gender in the insurance sector. 181 The EU, however, succumbed to pressure from the Member States to include a derogation in the directive allowing Member States to use gender as an actuarial factor for insurance services. The Belgian Parliament relied on this exemption when implementing the directive into Belgian law, allowing for insurance companies to use gender as a factor in calculating insurance premiums and benefits. 182 The Constitutional Court was requested to decide on the compatibility 178 The Belgian Bars have raised constitutional challenges regarding several domestic acts raising preliminary questions before the ECJ, most notably the Money Laundering Directive and more recently with regard to the introduction of VAT on legal fees. Const. Court No. 126/2005, 13  of this exemption with the prohibition on discrimination. The Court decided to refer a preliminary question to the ECJ. 183 The ECJ decided that Member States could not allow for derogations from the prohibition to use sex as an actuarial factor for insurance services, rendering the exemption in the directive invalid. 184 The Constitutional Court in consequence struck down the provision in the domestic act based on this exemption. 185 An interesting aspect of the impact of the ECJ on the standard set for constitutional rights is its harmonising effect on the case law of the Belgian Constitutional Court and Supreme Court. In the past both courts have frequently disagreed on the interpretation of certain constitutional provisions, resulting in divergent case law. It has been noted in the past that in this respect, supranational law has played the role of pacifier between the highest courts. In general this has implied that the Supreme Court has amended its case law in line with Constitutional Court case law, given that the Constitutional Court already interprets constitutional rights in line with the case law of the ECtHR and the ECJ.
While in previous cases the Strasbourg case law has played this role of pacifier, it was ECJ fundamental rights case law that most probably ended a divergence between the Constitutional Court and the Supreme Court on the interpretation of the principle that no legal action can be instituted twice for the same cause of action (the non bis in idem principle) in criminal proceedings, if one of the two proceedings would be qualified under Belgian law as an administrative proceeding (e.g. fiscal or deontological matters). Whereas the Constitutional Court heldin line with the applicable ECtHR case lawthat this principle applies whenever the underlying facts are identical or substantially the same, 186 the Supreme Court would only accept that this principle applies when the crimes for which the person was prosecuted were drafted in the same wording and mentioned the same constitutive elements. 187 The Supreme Court finally amended its case law in line with the Constitutional Court and ECtHR jurisprudence. The reason for this change is attributed to ECJ case law, in particular the Åkerberg Fransson case, in which the ECJ clearly stated that the non bis in idem principle applies in case of identical or substantially the same facts. 188 Following this line of case law of the ECJ, the Supreme Court finally altered its position. 189 This provides evidence of the persuasive power of ECJ case law as well as the harmonising effect this case law can have on domestic fundamental rights protection.

Constitutional Rules on International Organisations and the Ratification of Treaties
3.1.1-3.1.2 The enabling clause of Art. 34 of the Constitution, discussed in Part 1, is a general clause. It regulates the transfer of powers to all international organisations, not merely the European Union. It will be recalled that a simple majority in Parliament suffices, unless the treaty contradicts the Belgian Constitution, in which case a prior amendment of the Constitution is necessary before ratification. Also, in the case of 'mixed treaties', containing provisions within the spheres of competence of both the federal and the federated entities, the approval of all competent parliaments is required.
3.1.3-3.1.4 See also Part 1 for (unsuccessful) proposals to introduce treaty referendums. In addition to those mentioned above, scholars have regularly made proposals to simplify the constitutional amendment procedure in order to facilitate the ratification of treaties which contradict the Constitution. 190 Occasionally, this has been translated into a legislative proposal. 191 The idea is to do away with the intermediate renewal of Parliament. This would reinforce the efficacy approach discussed above. These proposals, however, have never seriously been discussed in Parliament.

3.2.1-3.2.2
The Constitution is silent about the position of international law in the domestic legal order, despite several efforts that have been undertaken since the 1950s to determine the relation between Acts of Parliament and the Constitution. 192 As mentioned, a monist position, establishing the primacy of self-executing international law over national law, was opted for by the Supreme Court in its Franco Suisse Le Ski judgment. 193 By assuming the power to disregard Acts of Parliament, it tacitly amended the Constitution. 194 We recall that the case in point concerned EEC law, but the primacy rule was established regarding all international law. According to the Court, this is a general principle of law, 195 inherent to the 'nature' of international law. The Constitutional Court embraced this stance, adding that in the case of abstract review, the provisions do not have to be self-executing for a treaty to have primacy over a national statute or regulation. 196 More controversial is the question of whether international law also has precedence over the Constitution. As mentioned above, both the Supreme Court and the Council of State accept the precedence of EU law over the Constitution. The Supreme Court has also explicitly declared the primacy of the ECHR over the Constitution. 197 The Constitutional Court's stance, however, is less clear. As mentioned in Part 1, the Constitutional Court has assumed the power to review laws giving assent to treaties against the Constitution, not only pursuant to annulment requests (which have to be lodged 60 days after publication of the Act of assent) but also in preliminary judgments. 198 This has given rise to heated debate in doctrine, as it was considered to detract from the traditional monist position. 199 Although the Constitutional Court, formally, assesses the Act giving assent, in reality it reviews the content of the treaty, as implemented in the domestic legal order through the Act of assent, against the Constitution. In a monist approach and from an international law perspective, judicial review is excluded once Belgium has ratified a treaty, with one exception based on Art. 46 of the Vienna Convention on the Law of Treaties: if the State's consent to be bound by the treaty manifestly violated a fundamental internal rule regarding its competence to conclude treaties. 200 In doctrine, the Constitutional Court's approach was consideredand often applauded 201as giving precedence to the Constitution over international treaties. Other doctrine, while generally accepting the precedence of EU law, argues in favour of the precedence of constitutional law over other international law. 202 In reality, the Constitutional Court has never taken an explicit stance. When reviewing an Act giving assent to a treaty, it merely examinesfrom a constitutional, not an international point of viewwhether Parliament's consent, at the time of entry, was in conformity with the Constitution, which it considers a requirement for the treaty to take effect in the domestic legal order. 203 Bossuyt, the former president of the Constitutional Court, has even argued that the Constitution as well as all highest courts (Supreme Court, Council of State and Constitutional Court) should avoid taking an explicit stance on the primacy of either constitutional or international law, to prevent a guerre des juges. 204 It is striking that this debate has often been held in terms of monism and dualism, whereas in reality legal systems employ a more nuanced approach in between these extremes. 205 Traditionally, proponents of a monist approach have adhered to a form of 'progressive internationalism', while dualism has been linked with the theory of state sovereignty. 206 Today, the growing sympathy for a more dualist approach in Belgian doctrine does not necessarily express a nostalgic yearning for a lost sense of sovereignty. Rather, it aligns with concerns for the respect of domestic values and principles in a globalising world.
Meanwhile, the idea that supranational law and national constitutional law are part of one multilevel constitutional system and European and domestic courts should find some equilibrium through judicial dialogue, is slowly gaining ground in Belgian doctrine. 207 In practice, however, judicial dialogue with the ECJ and the European Court of Human Rights is limited. On the one hand, the Belgian courts, including the Constitutional Court, readily implement and quote European case law and refer preliminary questions to the ECJ. The European Convention on Human Rights and the case law of the ECtHR have particular influence in the Belgian legal order. The Constitutional Court interprets constitutional rights in conformity with treaty rights, considering them an 'inextricable unity'. 208 While this concerns all international treaties and especially the UN fundamental rights treaties are often invoked, the ECHR is of special importance. The Constitutional Court regularly quotes Strasbourg case law, by which it feels bound, 209 and once even waited for the Grand Chamber's decision, in the Hirst case, before giving its own judgment. 210 On the other hand, the Belgian courts hardly ever criticise the European Courts' rulings, 211 even when they feel reluctant towards specific case law, such as the Salduz case law 212 or the nationality requirement for enjoying social security allowances. 213 Most of the time, conversations with the European Courts are one-sided. As a result, the courts are not successful in bringing domestic arguments to the fore at the European level. 214

Democratic Control
3.3.1 The Belgian Constitution does not provide for parliamentary participation in the conclusion of international agreements or the entry into international organisations, other than giving assent by a simple majority or, in the case of EU treaties, the information obligations mentioned above. The referendum ban, discussed in Part 1, also applies in the case of international treaties.
Apart from the occasional proposals mentioned above, submitting the conclusion of international agreements to a referendum and tightening democratic control are not on the agenda in academic or political circles. Instead, as mentioned, proposals to simplify the constitutional amendment procedure if constitutional amendment is necessary for ratifying a treaty, occasionally pop up.
Meanwhile, the requirement that, in the case of mixed treaties, all competent Parliaments have to give assent, has hindered the ratification of specific human rights treaties. Belgium has signed but not ratified both the Framework Convention for the Protection of National Minorities and Protocol No. 12 ECHR, because these treaties did not get the approval of the Flemish Parliament. Flemish politicians fear that these treaties might thwart linguistic balances which they consider to be vital to the stability of the divided Belgian state.

Judicial Review
3.4.1 Belgian courts do not have the power to review treaties and measures adopted under international law. However, as mentioned above, the Constitutional Court reviews treaties indirectly, through the Acts giving assent to these treaties. Proponents of the monist tradition have criticised this practice for violating the pacta sunt servanda principle. 215 On the other hand, denying the Court the right to assess whether a treaty was in conformity with the Constitution at the time of its ratification would allow the Government to circumvent, with a simple majority in Parliament, fundamental rights and principles laid down in the Constitution. 212 Popelier 2012, p. 91. 213 Alen et al. 2012, pp. 31-32. 214 Popelier 2012, p. 99. 215 Bossuyt 2012, p. 424;Velu 1992, pp. 101-102. We recall that Parliament interfered by denying the Constitutional Court the power to answer preliminary references regarding Acts of Parliament giving assent to EU treaties and to the ECHR and its Protocols. The limitation to these European treaties was heavily criticised in doctrine as well as by the advisory legislation division of the Council of State. 216 Indeed, Parliament's argument that interference was necessary to safeguard stability in international relations does not justify the distinction from other international treaties. Instead, proposals were launched in doctrine to complement the current prior advice provided by the Council of State on the constitutionality of treaties with an optional (or even obligatory), prior and binding judgment by the Constitutional Court. 217 Such proposals, however, have never been considered by Parliament.

3.5-3.6 The Social Welfare Dimension of the Constitution, and
Constitutional Rights and Values in Selected Areas of Global Governance 3.5.1-3.6.1 While the effectiveness of institutions of global economic governance is debated in Belgian scholarship, the effects on constitutional protection of social welfare, constitutional rights and values seem more or less neglected. In literature, the proliferation of regulatory agencies that enjoy political independence has been discussed as an 'international impulse' trend that runs counter to domestic principles of representative democracy. 218 Again, the Constitutional Court seems to easily accept this if EU rules prescribe this type of independence. The Council of State has referred to the Constitutional Court the question of whether the conferring of broad powers to the Electricity and Gas Regulator (CREG), directly affecting citizens, violated the Constitution, as this agency's board does not consist of Government members that are controlled by an elected Parliament. The Constitutional Court rejected the claim, arguing that the CREG's decisions were submitted to full and independent judicial control by the judicial branch of the Council of State, and that the CREG was under the obligation to write an annual activity report for the Government, providing Parliament with a means of control. Interestingly, the Constitutional Court added that even if these arguments were not to be considered sufficient to justify the challenged Act in view of Arts. 33 and 37 of the Belgian Constitution, then the Act still found a basis in Art. 34 of the Constitution, which allows for a transfer of powers to supranational organisations, since the conferral of such powers to an independent agency was based on EU law. 219 Critical comments did arise regarding the human rights issues following from the inclusion of persons on a terrorist blacklist and the sanctions following such listing, such as the freezing of bank accounts and a travel ban. 220 The UN blacklist included three Belgians, including a couple suspected of financing Al-Qaida through the humanitarian organisation Global Relief Foundation. After more than two years, no evidence or criminal charges were brought against them. The Brussels Tribunal of First Instance therefore ordered the Belgian state to start the de-listing procedure. The Belgian state, however, was unable to obtain the removal of the Belgian couple from the blacklist. Eventually, the Human Rights Committee concluded that Art. 17 of the International Covenant on Civil and Political Rights and Arts. 12 and 17 of the Optional Protocol to the Covenant had been violated. 221 In particular, it reproached the Belgian state for transmitting the couple's names to the Sanctions Committee, without waiting for the outcome of the criminal investigation that was initiated at the request of the Public Prosecutor's office. It admitted that the state was unable to remove the names from the list, but imposed upon the state the duty 'to do all it can to have their names removed from the list as soon as possible, to provide the authors with some form of compensation and to make public the requests for removal' and 'to ensure that similar violations do not occur in the future'.
Despite, on the one hand, the far-reaching implications of the procedure and sanctions on constitutional rights, and, on the other, the excavation of state sovereignty, there was no heated parliamentary debate on the subject. UN resolutions and EU acts were implemented through executive decrees. The Senate did initiate a debate regarding the subsidiarity and proportionality of an EU framework decision on combating terrorism, leading to some critical comments. 222 As for the specific case of terrorist blacklists, the Belgian example shows that even if domestic courts express human rights concerns and impose upon the state the duty to request de-listing, it is not within the power of the national authorities to actually secure constitutional rights. 223 This is disquieting to say the least, and calls for discussion at the UN level.