Re: Studying police officers improves their behaviour
It shows that IF PEOPLE THINK you have a camera, they will behave better.
By extension, if they think you don't, they will make up stuff and complain.
It doesn't mean you can get by on placebo alone, it means that people talk a lot less rubbish when they think their words may have been recorded and come back to bite them (e.g. making a false accusation against an officer).
Which, from my point of view, is extremely telling. It means that - as always held - most complaints against police are made up, and are just contributing to the problem of the police's (by no means squeaky clean) image.
Quite literally, this just stops the "Oh, he pushed me down the stairs and beat me up" "jokes" that people like to make up when nobody is recording. Put a camera in and they are a lot less likely to want to be convicted for wasting police time with such things.