1 Introduction

Because would-be lawbreakers typically do not wish to be held to account, many will undertake measures to avoid having their misconduct detected by law enforcement. A drug dealer, for instance, might use a disposable “burner” cell phone to mislead police, a possessor of child pornography encryption software to hide computer files, and a burglar a facial covering or device to neutralize the gaze of surveillance cameras. Motorists also frequently engage in detection avoidance, employing a variety of measures to avoid being stopped for speeding (e.g., laser “jammers”) and drunk driving (e.g., the “Waze” cell phone app).

Notably, all of the foregoing detection avoidance measures are lawful. In this respect, they differ from many other legally prohibited detection avoidance measures, such as having a secret compartment in a vehicle,Footnote 1 or using a firearm with a silencer to mute its sound when fired,Footnote 2 a “Whizzinator” to defeat a drug urinalysis test,Footnote 3 or a “booster” device to neutralize anti-shoplifting measures.Footnote 4

This article seeks to lend a degree of taxonomic coherence to the broad array of detection avoidance measures available to individuals and asks whether some or all should be criminalized. Ultimately, the article addresses a basic question: should detection avoidance measures be viewed, in the words of sociologist Gary Marx, as “courageous and inspiring expressions of the human spirit,” or as “destructive antisocial behavior proving the need for ever more stringent controls”?Footnote 5

Support for the former view aligns with the common cultural admiration of guileful trickers,Footnote 6 and suspicion of governmental authority more generally (in the U.S., at least).Footnote 7 Detection avoidance can also serve as a shield against what many see as over-enforcement of the law, especially regarding minor offenses in poor and minority communities,Footnote 8 or afford a welcome measure of “slack” in daily life.Footnote 9 Moreover, detection avoidance measures that cloak personal identity can obstruct private and government surveillance efforts,Footnote 10 including of individuals engaged in constitutionally protected speech and assembly, such as political protests.Footnote 11

Yet, there are also persuasive reasons for criminalizing detection avoidance. To a proponent of criminalization, detection avoidance is triply problematic: it allows the underlying illegality to occur, constitutes conscious and purposeful avoidance of personal responsibility, and amounts to government tolerance of both the illegality and the trickery used to shield it. Moreover, tolerating detection avoidance results in doctrinal inconsistency. How is it, for instance, that use of a gun silencer is criminalized, yet one can lawfully encrypt computer files to shield child pornography? Likewise, how can a burglar lawfully wear a mask, yet acquiring a mask before a burglary can serve as a basis for attempt liability?Footnote 12

For criminal law theoreticians, detection avoidance represents untilled terrain. Although considerable scholarly attention has been paid to the criminalization of ex post crime cover-up activity, such as perjury, money laundering, witness intimidation, and destruction of documents,Footnote 13 and ex ante inchoate criminal behavior, such as “staking out” a potential future crime scene,Footnote 14 the in-tempore avoidance measures focused upon here have yet to be examined. The deficit is unfortunate because detection avoidance is a common undertaking and provides a rich opportunity for analysis.

This article takes a first step in filling this gap and proceeds as follows. Part 2 provides an overview of the diverse array of measures individuals employ to avoid detection of their wrongdoing.Footnote 15 Part 3 examines whether detection avoidance should be criminalized, concluding that both theoretical and instrumental reasons support criminalization, although not without some caveats. Part 4 considers how policy makers might implement criminalization, focusing principally upon the options of sanctioning detection avoidance measures themselves, simpliciter, or, alternatively, as an adjunct to the penalization of the underlying misconduct that is sought to be concealed.

2 Detection Avoidance Measures

Detection avoidance measures perhaps figure most commonly in the automobile context. Motorists might employ laser “jammers,” lawful in the vast majority of states,Footnote 16 which prevent police speed detection laser guns from identifying a car’s speed,Footnote 17 or utilize “Laser Veil Stealth Coating,” which neutralizes readings of police laser speed detectors. According to the Veil Stealth website, “Veil is a nearly colorless transparent liquid acrylic which dries into a hardy, but easily removable, weather resistant film. It is designed to absorb infrared light making it more difficult for your speed to be measured.”Footnote 18 Veil, the website relates, is a “countermeasure product” that “[c]an save you thousands of dollars in fines, points and higher insurance premiums.”Footnote 19 A website selling Veil, RadarBusters.com, boasts that Veil coating “transforms your radar detector from a ticket notifier into a ticket preventer….”Footnote 20 Veil also offers reflective or retractable license plate covers that obscure plates from detection by speed and red light cameras.Footnote 21 Less tech-oriented motorists might use a mask to defeat automated cameras designed to detect the running of red lightsFootnote 22 and air fresheners to obscure the aroma of marijuana or other drugs.Footnote 23

Cellphone apps provide motorists several ways to avoid detection. The “Waze” app, for example, utilizes crowdsourcing to provide information indicating where police speed traps are located, so they can be avoided, allowing drivers to maintain their unlawful speed.Footnote 24 According to the VortexRadar website, “Waze is an excellent addition to laser jammers. It’s not a replacement for them, but it is an effective additional layer of protection to add to your countermeasure kit.”Footnote 25 Waze also provides information on the location of police drunk driving checkpoints.Footnote 26 And the NYCSpeedCamBuster app provides crowdsourced information on the location of the several hundred speed detection and red light-running cameras operative in New York City.Footnote 27

Outside the auto context, individuals wishing to avoid detection have a multitude of measures at their disposal. Lasers, for instance, might be used by shoplifters to defeat store security camerasFootnote 28; masksFootnote 29 or a “privacy visor”Footnote 30 to thwart facial recognition; a “burner” cell phone to avoid police monitoringFootnote 31; a cell phone appFootnote 32 or GPS “spoofer” to thwart geo-location trackingFootnote 33; and a jammer to neutralize the gaze of wireless home surveillance cameras.Footnote 34 An individual can also disguise their voice to confound voice detection technology,Footnote 35 and encrypt computer files to conceal child pornography.Footnote 36

Individuals seeking to avoid detection of unlawful substances in their urine engage in what qualifies as the most unusual strategy surveyed here. A “Whizzinator,” its manufacturer explains on its website, is

a fake penis made from a rubbery plastic that comes with an attached reservoir for holding a clean or synthetic urine sample. Both the prosthetic appendage and urine reservoir are attached to an elastic belt worn under the clothing. While providing the sample, the wearer pulls the Whizzinator out of their underwear, and then they activate a valve (silently and with one hand using the improved Whizzinator Touch!) to release the urine, which flows out of the fake penis and into the sample cup.Footnote 37

Looking ahead, a variety of technological advances will augment the detection avoidance arsenal. To counter efforts to monitor phone conversations, we will have “neck audio cloaks” that “take the form of a hat that rains down white noise thwarting any possibility of recording someone’s chatter.”Footnote 38 To avoid drone surveillance, “stealth wear” will include an “an anti-drone hoodie and scarf that are designed to thwart the thermal-imaging technology widely used by [drones].”Footnote 39 And the list continues to grow by the day.Footnote 40

3 Should Detection Avoidance Be Criminalized?

This part turns from the descriptive to the normative, considering the arguable wrongfulness and harmfulness of detection avoidance,Footnote 41 baseline prerequisites for criminalization,Footnote 42 as well as several broader instrumental considerations.

3.1 The Case for Criminalization

Wrongfulness, of course, can be defined in any number of ways. Viewed in terms of one common understanding, detection avoidance is wrong because the unlawful activity avoiders engage in, and seek to evade accountability for, transgresses a democratically enacted norm of a polity.Footnote 43 One might well disagree with auto speed limits, for instance, but the limits come within what Antony Duff calls “regulations that [individuals] ought to obey if they help maintain the efficient workings of systems that serve the common good; we do wrong when we breach them.”Footnote 44 Because detection avoidance (when successful) both enables the unlawful activity to occur and evasion of accountability for it, it qualifies as what Larry Alexander and Kim Ferzan term “scofflaw” behavior, a proper subject of criminalization.Footnote 45

From a behavioral ethics perspective, detection avoiders are not “erroneous” wrongdoers unaware that they are engaged in wrongdoing.Footnote 46 Rather, they embody Holmes’ proverbial “bad man”Footnote 47: they are calculating individuals who deliberately engage in wrongful behavior,Footnote 48 and opportunistically seek to avoid legal accountability when doing so,Footnote 49 much like those engaging in already criminalized ex post detection avoidance behavior that frustrates the ability of government to apprehend wrongdoers (e.g., money laundering).Footnote 50 By refusing to play by the rules, detection avoiders flout basic notions of reciprocal fair play and equal treatment,Footnote 51 exhibiting what Duff calls “civic arrogance.”Footnote 52 They “unfairly exploit[] the law abidingness of their fellow citizens,”Footnote 53 effectively treating them as suckers.Footnote 54

Detection avoidance also imposes harm. As noted at the outset, detection avoidance is harmful because it undermines the even-handed rule of law,Footnote 55 which as Alexander and Ferzan note is “a legally recognized harm” in itself.Footnote 56 Individuals successfully using avoidance measures will avoid police detection of their misconduct, while those abstaining will not, and will suffer the adverse consequences. This disparity in treatment, and the free ridership it entails,Footnote 57 imposes a harm regardless of whether non-detection avoiders and government authorities are aware of the successful detection avoidance.

When the detection avoidance is known, and goes unsanctioned by government, however, there can come an additional harm: the potential fostering of social resentment and disillusionment with rule compliance more generally.Footnote 58 One might justifiably ask “why should I play by the rules, when I can act like others and avoid being held accountable for violating them?”Footnote 59 In such an environment, “contagious” copycat behaviors will have appeal, further undermining the rule of law.Footnote 60 Exacerbating matters, when detection avoidance depends on one’s economic wherewithal to obtain a detection avoidance device, those with economic means will be able to avoid liability, while those without it will not.Footnote 61 Individuals in the former group will enjoy an unfair advantage,Footnote 62 another potential source for harmful social resentment.Footnote 63

Detection avoidance is also problematic for instrumental reasons.Footnote 64 In communicative and expressive terms, failure to sanction detection avoidance implicitly condones law breaking and the evasion of personal accountability that it allows. Criminalization singles out detection avoidance for condemnation,Footnote 65 which decreases the risk of public disillusionment associated with the perceived uneven enforcement of the law, which can lessen law abidingness and public willingness to help in the maintenance of public order.Footnote 66

Another instrumental consideration—whether criminalization will actually reduce detection avoidance, and possibly the underlying behavior it seeks to hide—is a question of obvious importance.Footnote 67 Some insights are found in a small but significant pocket of the economic analysis of crime literature.

Although the field initially ignored detection avoidance,Footnote 68 later work has taken it into consideration.Footnote 69 A foremost scholar in the field today is Chris Sanchirico, who has advanced a “detection avoidance principle”: that the threat of detection and punishment not only potentially discourages a legal violation, but “also encourages those who still commit the violation to expend additional resources avoiding detection.”Footnote 70 Sanchirico posits that “violators are more than mere spectators. Just as the state invests in detecting their violations, they invest in avoiding that detection.”Footnote 71

To disrupt this dynamic, Sanchirico advocates sanctioning detection avoidance with “second-order sanctions” as a way to increase deterrence of the underlying violation.Footnote 72 He recognizes, however, that the matter is complicated by the fact that sanctioning detection avoidance possibly “generates additional effort to avoid detection of the [detection avoidance] activity.”Footnote 73 Because of this recursiveness, uniformly sanctioning detection avoidance is “likely to increase, not decrease, detection avoidance” over time.Footnote 74 Furthermore, Sanchirico reasons, the successive sanctioning “that would be required to reduce detection avoidance” would be “impractical.”Footnote 75

Two other prominent scholars in the field, Jacob Nussim and Avarham Tabbach, view individuals’ investment of resources in detection avoidance as socially wasteful, and therefore think it desirable to curtail it.Footnote 76 They contend that while ex ante regulation of detection avoidance (e.g., taxing the sale of radar detectors) will decrease both avoidance and crime, ex post punishment (e.g., increasing fines for being caught for speeding with a detector) can be counterproductive insofar as it likely begets more avoidance and more crime.Footnote 77 This is because ex post punishment “increases not only the (marginal) costs but also the (marginal) benefits of investing in avoidance, because avoidance and crime are generally complements,”Footnote 78 in that “increased crime leads to greater avoidance, and vice versa.”Footnote 79 In sum, Nussim and Tabbach write, ex ante regulation is superior to ex post punishment because it:

necessarily deters both avoidance and crime, while ex post punishment does not. Ex post punishment of avoidance is usually simpler to implement, but counter-intuitively it may undermine deterrence of both avoidance and crime. This is because it increases both the costs and benefits of avoidance.Footnote 80

The scholarship summarized above yields some important insights. Logically, the greater the threatened punishment for the underlying misconduct, the greater the incentive to avoid detection (especially if it is low cost). And, logically, efforts to avoid detection might well inspire recursive, cat-and-mouse activity between individuals augmenting their detection avoidance measuresFootnote 81 and police ratcheting up their detection efforts (as we now see when encryption by individuals prompts police “workarounds”Footnote 82 and hackingFootnote 83).

However, as with much of the economic analysis of crime literature more generally, with its focus on social cost and the optimal fines needed to deter rational actors, the scholarship concerning detection avoidance is not altogether helpful here.Footnote 84 Most significantly, by focusing exclusively on deterrence, the literature disregards desert, a cornerstone of the preceding normative analysis.Footnote 85 Moreover, on the merits, the theoretical modeling ignores two important empirical realities. The first, long recognized by criminologists,Footnote 86 and only recently considered by economic analysis of crime scholars more generally,Footnote 87 is that would-be offenders vary in their awareness of and sensitivity for risk of apprehension. Second, relatedly, the models fail to account for variation in actors’ degrees of sophistication when engaging in criminal activity, for instance regarding police wherewithal to collect forensic evidence, another empirical reality recognized by criminologists.Footnote 88

Yet, even on their own terms, the detection avoidance economic models are problematic. By regarding detection avoidance measures as a discrete “cost” (for expenses incurred), and part of the “effective sanction of the underlying violation” an actor potentially faces,Footnote 89 the literature elides the reality that many measures are very low cost (e.g., wearing a mask or using Veil spray on a license plate).Footnote 90 And, even with relatively costly measures, such as a “privacy visor” or radar detector, the financial outlays are likely far less than those associated with the measures Sanchirico focuses upon, post-offense “evidentiary misconduct” such as suborning perjury by a witness and document destruction. Meanwhile, Nussim and Tabbach’s model might be practical with the example of radar detectors they use, but it is not practical with items not solely intended to avoid detection (i.e., dual-use items such as masks, discussed below).Footnote 91 Finally, while the models properly take account of the likely recursive nature of detection avoidance measures, they fail to recognize that an actor might utilize more than one strategy when avoiding detection of a single crime.

3.2 Caveats

Criminalizing detection avoidance is not without complication. One concern is that a detection avoidance measure might have a dual function, one normatively problematic and the other not. Laws criminalizing use of a secret compartment in a car are illustrative. Such a compartment might be used to conceal contraband, such as illegal drugs, but it might also be used to better conceal from view valuable lawful items (such as expensive camera equipment).Footnote 92

The dual-use concern was addressed by the Illinois Supreme Court in a decision invalidating on due process grounds its state law making it a felony “for any person to own or operate any motor vehicle he or she knows to contain a false or secret compartment.”Footnote 93 The Court reversed the convictions of three individuals, none of whom had contraband stored in their compartments, finding that the law, which lacked proof of any criminal purpose, did not constitute a “reasonable means of preventing the targeted conduct”:

The statute potentially criminalizes innocent conduct, as it visits the status of a felon upon anyone who owns or operates a vehicle he or she knows to contain a false or secret compartment, defined as one intended and designed to conceal the compartment or its contents from law enforcement officers. The contents of the compartment do not have to be illegal for a conviction to result.Footnote 94

The Court rejected “the notion that the intent to conceal something from law enforcement officers necessarily entails illegal conduct…Just as citizens are not required to display their worldly possessions to the general public, neither are they required to exhibit them for the plain view of law enforcement.”Footnote 95

Dual-use items can also have broader societal benefit.Footnote 96 Allowing them, especially with non-serious offenses, can provide a beneficial sphere of personal autonomy, permitting a degree of “slack” in the daily lives of individuals.Footnote 97 They can afford a perhaps welcome “sporting chance of getting away with crime, especially the ordinary everyday offenses that all of us might commit.”Footnote 98 They can also provide a measure of relief from discriminatory police practices. A large literature demonstrates the tendency of law enforcement to single out minority motoristsFootnote 99 and pedestrians,Footnote 100 with at times fatal results,Footnote 101 for low-level offenses, including on the basis of a pretextual motivation.Footnote 102

Detection avoidance measures can also mitigate the negative impact of modern surveillance technologies. Automated tools employed by police such as networked surveillance cameras, license plate readers, and facial recognition technology provoke concern because they are cheap and easy to use, and the data they generate can be stored indefinitely and fused with other information.Footnote 103 In combined effect, the technologies achieve what the Supreme Court has called a “near perfect surveillance,” not only of criminal suspects, but “everyone.”Footnote 104 Exacerbating matters, as with enforcement more generally, police surveillance efforts often target poor and minority communities,Footnote 105 which can mistakenly result in false positives,Footnote 106 and otherwise sweep up law-abiding citizens who simply wish to avoid contact with “the system.”Footnote 107 Surveillance, moreover, is not only undertaken by police. Businesses and community members employ millions of surveillance devices, such as the Amazon Ring doorbell camera,Footnote 108 recording legal and illegal activity alike,Footnote 109 which can have a chilling effect on personal liberty.Footnote 110

Finally, relatedly, detection avoidance measures can help protect the exercise of First Amendment-protected activity. Recent media reports highlight how law enforcement, at times in tandem with private data aggregators, secretly surveilled and identified participants in Black Lives Matter protests.Footnote 111 Detection avoidance in such circumstances can constitute “privacy protests,” “actions individuals take to block or to thwart surveillance for reasons unrelated to criminal wrongdoing.”Footnote 112 The website of the Veil license plate coating material, noted earlier, echoes this view, declaring that it protects users from police surveillance, especially automated license plate reading (ALPR) technology,Footnote 113 “systems that are touted as enhancing public safety,” yet are “exacting [a price] on our individual liberties [that] is exceedingly high….”Footnote 114

4 Implementation

Presuming detection avoidance warrants criminalization, in some instances, what to do? Two primary legal options come to mind.Footnote 115

One option is to criminalize detection avoidance measures themselves, simpliciter, regardless of the nature or seriousness of the underlying offenses actors seek to avoid accountability for committing. Stand-alone criminalization of a silencer, for instance, is thought justified because there are few lawful uses for a silencer.Footnote 116

Such an approach, however, must be sensitive to over-inclusiveness concerns, especially when dual-use measures are involved (discussed above).Footnote 117 In such instances, criminal liability should be conditioned upon an actor’s mens rea. Much as how determining whether an object qualifies as a “deadly weapon” focuses not on the nature of an item, but rather the actor’s purpose in using it,Footnote 118 the criminalization of detection avoidance should depend on the intent of the party.Footnote 119 For example, a law might specify intent to evade, such as with tools to thwart anti-shoplifting security.Footnote 120 Another example is found in Ohio’s law concerning car secret compartments, which makes it a crime to “knowingly operate, possess, or use a vehicle with a hidden compartment with knowledge that the hidden compartment is used or intended to be used to facilitate the unlawful concealment or transportation of a controlled substance.”Footnote 121

Intent, of course, is a cornerstone of criminal liability.Footnote 122 Under the classic formulation of the Model Penal Code, an individual acts with criminal “purpose” if it is “his conscious object to engage in conduct of that nature or to cause such a result”Footnote 123; acts “knowingly” if he is aware that his conduct is of that nature or that such circumstances exist”Footnote 124; and acts “recklessly” if he “consciously disregards a substantial and unjustifiable risk that the material element exists or will result from his conduct.”Footnote 125

While one of the aforementioned mental states, or a reformulation of it,Footnote 126 is essential, proof will often be difficult to secure, and will vary from case to case. In many instances, however, line-drawing will not be difficult. Most obvious is the situation where the party is in fact detected engaging in unlawful activity, and their avoidance effort is foiled—for instance, when the possessor of child pornography is found to have used a form of encryption that police somehow were able to circumvent or defeat.Footnote 127 Or when an individual utilizes a privacy-protecting measure when not engaging in unlawful activity, such as when attending a lawful political protest.

Imposition of a mens rea requirement will have the corollary benefit of reducing the likelihood that criminalized avoidance measures will be treated as “proxy crimes,” which “while not inherently risking harm[s], stand[] in for behavior that does risk harm.”Footnote 128 As Youngjae Lee recently noted, proxy crime laws are problematic because they “are designed to sweep both morally innocent and morally wrongful together into one class.”Footnote 129 Requiring that the government prove intent to evade detection for an underlying offense will significantly reduce the threat that detection avoidance will serve a proxy function, a threat that can be further reduced by use of prosecutorial charging guidelines.Footnote 130

A second option is to enhance the punishment of the underlying offense, when detected despite use of a detection avoidance measure. Ohio’s secret car compartment law takes this approach: using a compartment to hide contraband is punished more severely than possession of the contraband alone.Footnote 131 A similar approach is taken in the punishment of financial crimes under the U.S. Sentencing Guidelines whereby an individual’s sentence is increased if the wrongdoing “involved sophisticated means and the defendant intentionally engaged in or caused the conduct constituting sophisticated means.”Footnote 132 In such a situation, the punishment attaching to use of the avoidance measure might be increased independently of the seriousness of the underlying offense, or it might be correlated with it.

5 Conclusion

This article began with a question: are detection avoidance measures “courageous and inspiring expressions of the human spirit,” or do they qualify as “destructive antisocial behavior” worthy of criminal condemnation? As the preceding discussion suggests, the question does not admit of a categorical response. Nevertheless, it is hoped that the article has imposed a helpful degree of analytic order upon the broad array of detection avoidance measures individuals now employ, and will employ in the future, and that discussion of their ramifications inspires additional inquiry into the overlooked yet important and pervasive phenomenon.