Objective(s): We assessed the impact of body-worn cameras (BWCs) in two countries on perceptions of everyday encounters with police, independent of officer respectfulness and participants' preexisting trust in police. Hypotheses: We expected BWC presence, officer respectfulness, and preexisting trust in police to all significantly improve individuals' perceptions of a police encounter. We also expected interactions indicating that BWC presence and preexisting trust in police reduce the effect of officer respectfulness on perceptions of the encounter. Method: In each of three experimental studies, we measured participants' preexisting trust in police, and then presented participants with a vignette describing an encounter with a police officer in which officer respectfulness (respectful, disrespectful) and the presence/disclosure of a BWC (absent, present and disclosed by officer, present but undisclosed by officer) were independently manipulated. In Studies 1 (N = 422, M age = 29 years, 73% women, 68% Australian) and 2 (N = 210, M age = 19 years, 64% women, 59% Hispanic) in Australia and the United States, respectively, participants assumed the role of the driver in a traffic stop as they read the vignette. In study 3 (N = 504, M age = 29 years, 72% women, 34% English), participants in Australia assumed the role of a citizen interacting with a police officer enforcing COVID-related restrictions. Participants then recorded their perceptions of procedural justice of and satisfaction with the encounter, legitimacy of the police, and willingness to co-operate with police. Results: Across three studies and two countries, we found no support for the notion that BWC presence influenced people's perceptions of police-citizen interactions independent of officer respectfulness and preexisting trust.
Conclusion:The effect of BWC presence, established in prior research, might operate via its effect on offi-