Phoenix Police officers are required to wear Body-Worn Cameras while out on patrol and must have the cameras turned on when interacting with the public. The Body-Worn Camera (BWC) Policy was initially established as a means of accruing evidence and increasing police accountability when in the presence of the public. However, BWC technology has the ability to perform many other useful functions. The information provided by the cameras could be used to reduce the paperwork done by police officers while on duty, thus allowing them to spend more time taking calls from dispatch. The versatility of the body-worn camera and its components also make it an ideal pairing for an electrocardiograph (ECG) device to aid in the health of officers and law enforcement retention.
Despite high BWC activation compliance among the officers within this study, no evidence was found for BWCs having a civilizing effect as the pre-condition of citizen awareness was rarely satisfied. These results could shape policies within departments implementing BWCs hoping to improve officer safety and community relations. Mandatory notification would satisfy the pre-condition of citizen awareness, allowing for the BWC to potentially have a civilizing effect.
To address this gap, I use Phoenix Police Department data collected as part of a three-year randomized-controlled trial of BWCs to examine variation in police discretion. These data include over 1.5 million police-citizen contacts nested within 826 officers and 388 neighborhoods. I examine two research questions. First, how do proactivity, arrests, and use of force vary depending on situational, officer, and neighborhood contexts? This provides a baseline for my next research question. Second, examining the same contexts and outcomes, do BWCs moderate the influence of neighborhood factors on police behavior? As such, I examine the untested, though heavily promoted, argument that BWCs will reduce the influence of extralegal factors on officer behavior.
Using cross-classified logistic regression models, I found that situational, officer, and neighborhood factors all influenced proactivity, arrest, and use of force. BWCs were associated with a lower likelihood of proactivity, but an increased likelihood of arrest and use of force. Officers were more proactive and were more likely to conduct arrests in immigrant and Hispanic neighborhoods. The moderating effects suggest that officers were even more likely to proactively initiate contacts and conduct arrests in immigrant and Hispanic neighborhoods when BWCs were activated. However, after BWCs were deployed, use of force was significantly less likely to occur in black neighborhoods. Given that high-profile police use of force incidents involving black suspects are often cited as a major impetus for the adoption of BWCs in American police agencies, this finding is a key contribution to the literature.