To me, the important potential of police body cameras is not in the middle of the Bell Curve. The important effects are in the tails. The routine traffic stop that is a routine traffic stop isn't where a camera matters as much as the routine traffic stop that turns non-routine.
The important cases are where it's some civilian's word against one or several officers. It is when the police make a mistake that future training might avoid. And it is when the optics of police behavior turn out to be worse than actual police behavior.
The important cases are where it's some civilian's word against one or several officers. It is when the police make a mistake that future training might avoid. And it is when the optics of police behavior turn out to be worse than actual police behavior.