Abstract
Objectives
This paper reports results from the Scottish Community Engagement Trial (ScotCET), devised to replicate the Queensland Community Trial (QCET). ScotCET was an RCT that tested the effects of ‘procedurally just’ policing on public trust and police legitimacy
Methods
A block-randomised (matched pairs) design, with pretest and posttest measures, was implemented in the context of road policing in Scotland. Participants were drivers stopped by police in December and January 2013/14 as part of Police Scotland’s ‘Festive Road Safety Campaign’. The experimental intervention comprised a checklist of key messages to include in routine roadside vehicle stops, and a leaflet for officers to give to drivers. Analysis proceeds via random effects regression models predicting latent variable measures of trust, satisfaction and legitimacy
Results
Contrary to expectations, the intervention did not improve trust and legitimacy; rather, trust in the officers who made the stop, and satisfaction with their conduct, fell in the test sites, relative to the controls, after implementation of the intervention. The intervention had no significant effect on general trust in the police, nor on police legitimacy
Conclusions
Results demonstrate the difficulty in translating experimental interventions across policing contexts, and challenge the notion that public perceptions may be improved through a simple, additive approach to the delivery and communication of procedural justice.
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Notes
Only 20 drivers receiving the experimental intervention could not recall receiving the leaflet.
Coefficients 1, 2 and 4 were taken directly from each model. Coefficient 3, along with its standard error and significance level, was calculated using the lincom function in Stata.
References
Antrobus, E., Elffers, H., White, G., & Mazerolle, L. (2014). Non-response bias in randomized control experiments: Putting the Queensland community engagement trial (QCET) under a microscope’. Evaluation Review, 37(3-4), 197–212.
Ariel, B., & Farrington, D. P. (2010). Randomised block designs. In A. R. Piquero & D. Weisburd (Eds.), The handbook of quantitative criminology. New York: Springer.
Boruch, R., Weisburd, D., & Berk, R. (2010). Place randomised trials. In A. R. Piquero & D. Weisburd (Eds.), The handbook of quantitative criminology. New York: Springer.
Bradford, B., Jackson, J., & Stanko, E. A. (2009). ‘Contact and confidence: Revisiting the impact of public encounters with the Police’. Policing and Society, 19(1), 20–46.
Bradford, B., Huq, A., Jackson, J., & Roberts, B. (2014a). ‘What price fairness when security is at stake?Police legitimacy in South Africa. Regulation and Governance, 8(2), 246–268.
Bradford, B., Murphy, K. and Jackson, J. (2014b) ‘Officers as mirrors: Policing, procedural justice and the (re)production of social identity’ in British Journal of Criminology Advance Access.
Brandl, S., Frank, J., Worden, R., & Bynum, T. (1994). Global and specific attitudes toward the police: Disentangling the relationship’. Justice Quarterly, 11(1), 119–134.
Hinds, L., & Murphy, K. (2007). Public satisfaction with police: using procedural justice to improve police Legitimacy’. Australian and New Zealand Journal of Criminology, 40, 27–42.
Hohl, K., Bradford, B., & Stanko, E. A. (2010). Influencing trust and confidence in the London metropolitan police: results from an experiment testing the effect of leaflet-drops on public opinion. British Journal of Criminology, 50(3), 491–513.
Hough, M., Jackson, J., & Bradford, B. (2013). The governance of criminal justice, legitimacy and trust’. In S. Body-Gendrot, R. Lévy, M. Hough, S. Snacken, & K. Kerezsi (Eds.), The routledge handbook of european criminology. Oxford: Routledge.
Jackson, J., Bradford, B., Hough, M., Myhill, A., Quinton, P., & Tyler, T. R. (2012). ‘Why do people comply with the Law?: legitimacy and the influence of legal institutions. British Journal of Criminology, 52(6), 1051–1071.
Jackson, J., Bradford, B., Stanko, B., & Hohl, K. (2013). Just authority? trust in the police in England and wales. London: Routledge.
Jonathan-Zamir, T., & Weisburd, D. (2013). The effects of security threats on antecedents of police legitimacy: Findings from a quasi-experiment in Israel’. Journal of Research in Crime and Delinquency, 50(1), 3–32.
Mazerolle, L., Bennett, S., Eggins, E., Antrobus, E., White, G., & Davis, J. (2011). Testing police legitimacy…one breath at a time: the Queensland community engagement trial technical report. Brisbane: ARC Centre of Excellence in Policing and Security.
Mazerolle, L., Bennett, S., Antrobus, E., & Eggins, E. (2012). Procedural justice, routine encounters and citizen perceptions of the police: main findings from the Queensland community engagement trial (QCET)’. Journal of Experimental Criminology, 8(4), 343–366.
Mazerolle, L., Bennett, S., Davis, J., Sargeant, E., & Manning, M. (2013a). ‘Procedural justice and police legitimacy: a systematic review of the evidence’ in. Journal of Experimental Criminology, 9(3), 245–274.
Mazerolle, L., Antrobus, E., Bennett, S., & Tyler, T. (2013b). Shaping citizen perceptions of police legitimacy: A randomized field trial of procedural justice’. Criminology, 51(1), 33–64.
Mazerolle, L., Bates, L., Bennett, S., White, G., Ferris, J., & Antrobus, E. (2014a). Optimising the length of random breath tests: Results from the Queensland community engagement Trial’. Australian and New Zealand Journal of Criminology. doi:10.1177/0004865814532661.
Mazerolle, L., Sargeant, E., Cherney, A., Bennett, S., Murphy, K., Antrobus, E., & Martin, P. (2014b). Procedural justice and legitimacy in policing. Switzerland: Springer International Publishing.
Murphy, K., Hinds, L., & Fleming, J. (2008). Encouraging cooperation and public support for Police’. Policing and Society, 18, 138–157.
Murphy, K., Mazerolle, L., & Bennett, S. (2014). ‘Promoting trust in police: findings from a randomised experimental field trial of procedural justice policing’ in. Policing and Society, 24(4), 405–424.
Myhill, A., & Bradford, B. (2012). ‘Can police enhance public confidence by improving quality of service? results from two surveys in England and wales. Policing and Society, 22(4), 397–425.
Papachristos, A., Meares, T., & Fagan, J. (2012). ‘Why do criminals obey the Law? the influence of legitimacy and social networks on active Gun offenders. Journal of Criminal Law and Criminology, 102, 397–439.
Rabe-Hesketh, S., & Skrondal, A. (2008). Multi-level modelling using stata (2nd edition). College Station, TX: Stata.
Scottish Government (2014) Scottish Crime and Justice Survey 2012-13: Main Findings, Edinburgh: Scottish Government.
Scottish Government. (2012). The strategy for justice in Scotland. Edinburgh: Scottish Government.
Shadish, W. R., Cook, T. D., & Campbell, D. T. (2002). Experimental and quasi-experimental designs for generalized causal inference. Belmont: Wadsworth Cengage Learning.
Skogan, W. G. (2006). ‘Asymmetry in the impact of encounters with the police. Policing and Society, 16(2), 99–126.
Snijders, T., & Bosker, R. (2012). Multilevel analysis (2nd ed.). London: Sage.
Sunshine, J., & Tyler, T. (2003). ‘The role of procedural justice and legitimacy in public support for policing. Law and Society Review, 37(3), 513–548.
Tankebe, J. (2008). Police effectiveness and police trustworthiness in Ghana: an empirical appraisal. Criminology and Criminal Justice: An International Journal, 8, 185–202.
Thibaut, J., & Walker, L. (1975). Procedural justice: A psychological analysis. Hillsdale: Erlbaum.
Tyler, T. R. (2006). Why people obey the Law. Princeton: Princeton University Press.
Tyler, T. R., & Huo, Y. J. (2002). Trust in the Law: Encouraging public cooperation with the police and courts. New York: Russell Sage Foundation.
Weisburd, D. L., & Gill, C. (2014). ‘Block randomised trials at places rethinking the limitations of small N experiments. Journal of Quantitative Criminology, 30(1), 97–112.
Wünsch, D., & Hohl, K. (2009). Evidencing a "good practice model" of police communication: The impact of local policing newsletters on public confidence’. Policing: A Journal of Policy and Practice, 3(4), 331–339.
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MacQueen, S., Bradford, B. Enhancing public trust and police legitimacy during road traffic encounters: results from a randomised controlled trial in Scotland. J Exp Criminol 11, 419–443 (2015). https://doi.org/10.1007/s11292-015-9240-0
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DOI: https://doi.org/10.1007/s11292-015-9240-0