Body Worn Cameras: The Dog That Won’t Bark

Posted in: Law Enforcement

Once again, it is the story within the story that matters most.

Just over a week ago, researchers published the results of the largest, most sophisticated study to date on the effect of body worn cameras (BWCs) on policing. The research team conducted a methodologically rigorous, randomized trial involving officers with the Washington, DC, police department, one of the largest departments in the country. They tracked officer behavior for 18 months, from the middle of 2015 to the end of 2016, comparing more than 2200 officers throughout the city. Roughly half the officers in the study were assigned a camera and half were not. All the participants held a rank of sergeant or below, which helped guarantee that the study group included only those officers who have the most frequent contact with the public.

The researchers examined the effect of BWCs on four “outcome categories,” including the use of force, citizen complaints, routine patrol activity, and judicial outcomes. The entire study is worth reading in detail and can be accessed here. This, however, is the bottom line (the emphasis is mine): “Across each of the four outcome categories, our analyses consistently point to a null result: the average treatment effect on all of the measured outcomes was very small, and no estimate rose to statistical significance. …” Body worn cameras made no difference at all in how the police went about their job, to citizen complaints about police conduct, or to judicial outcomes—at least, no difference that rose to the level of statistical significance. Of particular note for those concerned about police violence, officers who wore cameras were no more or less likely to use force than those who did not.

Observers were shocked. In article after article, commentators and participants expressed astonishment at the results. The New York Times said the study “defies expectations.” The Washington Post similarly thought it “bucks early expectations about the impact of the devices.” Another journalist thought the results were contrary to “widespread expectations.” The scholars involved in the project were likewise baffled. The results “kind of blew my mind,” said Yale political scientist Alexander Coppock. Even Peter Newsham, the Chief of Police in Washington, DC, who presumably knows his department as well as anyone, was “surprised.” “I think a lot of people were suggesting that the body-worn cameras would change behavior,” he said, but “there was no indication that the cameras changed behavior at all.” Newsham had expected in particular that the cameras would deter those officers who were inclined to “misbehave.” But in fact, there were about as many complaints against officers wearing the cameras as those who were not, and once again, the differences between the two totals were not statistically meaningful.

I don’t get it. The story here is not that the cameras had no effect. It’s that so many people were certain they would.

Those who express surprise at the results evidently believe that at least some officers were not doing what the public and their superiors want them to do, and that the cameras would have induced those officers to change their behavior. People may disagree about the number of officers in this category, but the surprised reaction makes no sense if everyone thought the police were behaving precisely as desired. Suppose, for example, we randomized the dog owners in a city, assigning half to wear a body camera when they took Fido for a stroll and half to wander without. Because we expect a certain range of behavior—stopping at a bench, chatting with neighbors, checking email, sending texts—we are not at all surprised when the footage shows precisely this result. We are only surprised when the footage shows something we don’t expect, like a random number of people whacking poor Fido across the head. In the case of the body worn cameras, people believe the police misbehave in some statistically significant number of cases. Since no one wants to be caught on tape being abusive, they firmly believe the cameras will deter the misconduct. And because they are convinced the abuse occurs, they are at a loss to explain the results.

Of course, Chief Newsham offered one possible explanation for the non-results. Maybe, he mused, his officers “were doing the right thing in the first place.” The cameras did not deter misconduct because there was no misconduct to deter. This is certainly one possible explanation. But even Chief Newsham doesn’t really believe this, or else he would not have been so surprised at the results. Apparently, no one has considered the possibility that the police in DC, like in most cities, are doing exactly what is asked of them and that it may be abusive.

That is, body worn cameras detect police doing their job. Most of the time, this involves innocuous interactions with members of the community. Occasionally, however, it involves and creates a certain amount of hostility between the citizenry and the police, which often leads to hard feelings, sometimes to a complaint, and sometimes to the use of force. The citizen thinks the officer has been abusive, and perhaps she has by the standards of the individual aggrieved or by those of the community of which the individual is a part. But if the officer is acting precisely as she has been trained and encouraged to act, she is not apt to alter her conduct regardless of whether she is being filmed.

The camera, therefore, does not change officer behavior precisely because the officer is doing exactly what is asked of her, even when her behavior is perceived as abusive. Thus, the study did not, and could not, detect the possibility that routine police interactions could unfold precisely as designed and nonetheless still be the source of friction and animosity between the citizen and the department. The study looked for evidence that abusive behavior was anomalous, which meant it was blind to evidence that abusive behavior was inherent in the nature of police-citizen interactions and accepted by those who design and implement police practices.

I have written about body worn cameras before. As I have noted, in this age of so-called criminal justice reform, they are the only change in police practice that has achieved widespread acceptance. According to the results of a survey recently completed by the Major Cities Chiefs Association and Major County Sheriffs’ Association, nearly every large police department in the country plans to implement body-worn cameras. More than 95 percent of the departments are either committed to the cameras or have already begun to use them. Only 4.5 percent said they either do not intend to use body cameras or chose not to go forward with the technology after completing a pilot program.

And there is a reason for this acceptance: the cameras do not alter police behavior. Oh, perhaps at the margins they might. They may deter the small number of officers who violate long-settled norms. But contrary to what many people believe, in the great majority of departments, these are the outliers. These officers matter, make no mistake, but removing them will not solve the problem or relieve the tension between police and the communities they serve.

To put it simply, in a great many urban departments, the problem is not the anomalous; it is the routine.

The routine strategies and behavior that most officers have been trained to employ, which involve no risk of adverse personal or professional consequences, are precisely what most departments want from their officers. This behavior cannot be deterred by a camera, even though it carries with it the inherent, inevitable risk of friction and resistance.

There is a solution to the problem of police-citizen animosity, and it has nothing to do with cameras. I have written many times about my preference for narrowly focused, place-based policing strategies that shrink the blue footprint, and therefore limit the number of these routine police-citizen interactions. The police must become part of a robust partnership involving the community and other municipal agencies. Collectively and creatively, the members of this partnership must target the very small number of people and places that account for the overwhelming majority of crime and disorder in a community. So far, however, these collaborative, problem-solving, place-based strategies are the exception, not the norm. Until that changes, body worn cameras will simply capture precisely what we have long asked the police to do. That’s why most police departments like them. And that’s the problem.

Posted in: Law Enforcement

Tags: Legal, Police

7 responses to “Body Worn Cameras: The Dog That Won’t Bark”

  1. TZ says:

    I’m not sue the goal of body cameras was to change police behavior but to document them. In my view, this helps provide more reliable evidence that we would have without them. One effect we have seen as a result of body cams, is how often the police will lie about and attempt to cover up what actually happened.

  2. Pinto Grande says:

    When people expect police officers to be abusive and corrupt, they look for data to support their assumptions. I think those who were astonished by the results, were also quite disappointed. They wanted to be right. They wanted yet another reason to say that police bear the sole responsibility of solving the community’s problems; that the community is right, and the officer is wrong. Most officers embrace BWCs, because they want people to see the challenges they face. The article points out that people seem surprised to learn that most police officers are actually doing what they are trained to do. And Mr. Margulies’ argument is that is the problem? Police strategies and tactics are built upon a long history of experience. Sadly, many police tactics are learned from tragic incidents where officers lost their lives. So is he arguing that police officers should change the training and tactics which ensure the greatest hope of them going home to their families? Maybe it’s time these critics start to show a bit more investment in their own communities, instead of always looking to law enforcement to solve (or resolve) every failure in society.

  3. jcjasik says:

    Not really. The problem is that Police is conducting surveillance of citizens under the false pretense. No court order required to incriminate citizens. They are ‘directing’ the camera to show what they want us to see. Pathetic. Self-serving.

  4. Pinto Grande says:

    I do agree with Mr. Margulies that communities need to take responsibility for themselves. Instead, they ask law enforcement to solve all their problems and then can’t understand why the only result was to introduce new problems. If communities can find ways to care for themselves, then maybe law enforcement won’t be asked to do so much of what they are not equipped to do.

  5. Richard Amberg says:

    How many robbers would rob a party store if a policeman was known to be present and recording the robber’s every step and that arrest was guaranteed to occur on the spot? Not many, I assure you. My expert witness is common scense.Unless the presence of police cameras are hidden and unknown to the officer, i rather doubt that the results would be the same as the author claiims. My opinion is based upon commen scense..

  6. If there is not a noticeable difference in what LEO’s are doing and no noticeable difference in officer violations then one would have to assume that the age old system was sand is working. The result should be that there is less cases against officers or that the cases are more clean cut and can be taken care of expeditiously with less legal cost. If there remains to many legal cases in an area where the city or county officers with the agency they work for are found in violation of peoples rights it would indicate that the policing agency need to be overhauled. If not it is a case where perps always think someone else is responsible for what they do. Either way in the long run it becomes a win win in my eyes. Accident cases have shown in the past that what a person thinks they see and what happens (shown on camera) some of the time varies greatly, just a fact.

  7. jereuter says:

    Interesting, but not, at least to one who is inclined to believe that statistically speaking police rarely act outside the bounds of reasonable behavior. Human beings are imperfect and every profession will have members who break the law, act unethically and so on, including police officers, albeit due to the nature of that profession more so than perhaps any other are subject to situations where someone can be killed either inside or outside the “line of duty.” I suggest that Mr. Margulies add himself to a national police force association so that he can receive a notice whenever a police officer is killed. Perhaps a course for citizens might be designed to prevent it.

    The reason for Mr. Margulies and others being perplexed by the result is because of a fundamental misconception. That misconception is evident from the silly “dog owner” example. It’s not “whacking the dog over the head” that is the point. It’s whether or not owners clean up after their dog’s poop even when no one is around, or keep them on a leash early morning or late evening when no one is around. Would the camera then and someone reviewing it to punish the offender for going “outside the line” change their behavior? Yes, or no?

    Mr. Margulies misses the point. Those on the left always believe that this, that or the other change will automatically, summarily even change any behavior thought to be offensive, dangerous or “out of line.”

    Clearly, it could be argued that good behaving cops are in the vast majority just as dog owners who meet, chat and otherwise behave as expected, the latter cleaning up their dog’s poop and on a leash. The former also do as I would expect, enforce the law and while doing so stay within the bounds of legal propriety.

    Of course one situation involves mere poop and leashes, the other murder, robbery and mayhem, a distinction that Mr. Margulies seems only dimly aware. As for police-citizen animosity, speak for yourself and those who violate the law and have not even the slightest respect for it or the police. Don’t lump me and perhaps the vast majority of other “citizens” who view the police as we do our doctors, mechanics, lawyers and others, not as perfect, but as human.