This study evaluates the impact of body-worn camera (BWC) implementation in seven districts served by the Miami-Dade Police Department (MDPD). Nine hundred and sixty-two police officers were provided with BWCs and trained in their use over a four-month period, from May 5, 2016 through August 8, 2016. Statistical analyses of pre- and post-BWC time periods revealed that the use of BWCs resulted in a 34% decrease in the number of citizen complaints against...