In this Jan. 15, 2014 file photo a Los Angeles Police officer wears an on-body camera during a demonstration in Los Angeles.
In this Jan. 15, 2014 file photo a Los Angeles Police officer wears an on-body camera during a demonstration in Los Angeles. Damian Dovarganes AP
In this Jan. 15, 2014 file photo a Los Angeles Police officer wears an on-body camera during a demonstration in Los Angeles. Damian Dovarganes AP