Several LEO's are good friends of mine and have related many times just how good some of the less desirable folks they pick up are at trying to make an officer look bad. Female suspects often try to set up a male officer for sexual harassment. The dash cams have saved their bacon often, but the body cams will be better yet.I like the idea of body cameras in general. I think it can help protect the police and the public.
There have been a lot of situations where a camera has exposed police abuse, and protected the officers when false accusations have been made against them.