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Sunyoung Pyo
Controlling police officers’ discretionary behavior during public encounters has been an important issue in U.S. policing, especially following several high-profile police-involved deaths of racial minorities. In response, body-worn cameras (BWCs) were introduced to enhance police accountability by providing police managers an opportunity to monitor police–public encounters. Although many U.S. local police departments have now implemented BWC programs, evidence of program effects on daily police behavior has been limited. This study therefore focuses on whether officers’ arrest behavior changes when they perceive that BWCs are recording their interactions with the public. By conducting a difference-in-differences analysis using 142 police departments, I found that BWCs have negative and small treatment effects on arrest rates and null effects on the racial disparity between numbers of Black and White arrests. These findings imply that officers may become slightly more cautious in the use of arrests after wearing BWCs, but BWCs do not change their overall disparate treatment of Black versus White suspects. The results further indicate that the effects of BWCs on arrests are prominent in municipalities with high crime rates or a high proportion of non-White residents, which suggests that BWC programs demonstrate different effects according to the characteristics of communities served.
