Despite the introductions of body cameras, police brutality and the irrational use of force has not served as a deterrent. George Floyd was in police custody when he was murdered. The Minneapolis Police Department confirmed that the body cameras were on at the time of the murder. It was not the bodycam, but the footage of bystanders that revealed how George Floyd died. This suggests that the cameras themselves are not the silver bullet, it depends on how they are used by the police. The current rules on the release of the footage are varied, and over the years a lot of footage has not released by departments despite requests.
Research on the use of force has been mixed. Although some studies suggest that the use of force decreases in the absence of a camera, other studies suggest that there is no significant difference in the use of force exhibited by police whether or not they are wearing cameras. This suggests that police cameras alone have very limited impact on the irrational behaviours capable of being exhibited by police, such as the use of excessive force as seen in George Floyd's case.