I like the line, "When people realize they're being video-taped, they tend to be on their best behavior," Cecchini said. Obviously he has never watched an episode of "COPS".
Body worn camera coverage is very limited compared to Dash Cameras which have a wide view angle and are also useful for traffic offense and chase documentation. The bodycam would have the advantage in a one-on-one situation however, provided the camera is activated and the officer learns how to keep it aimed with his position and does not block it's view.
It will be interesting to see how this "pans" out