This is a great idea. In the US, it pretty much stopped the idea overnight that cops were beating people for no reason. Many activist groups now want to get rid of body cameras.
This is sarcasm right? There are a ton of examples of police beating/murdering people, lying, and even planting evidence caught on their own body cams. I've never seen an activist group that didn't want body cameras. I have seen pushes for disabling the ability for the cameras to be disabled/muted and calls for penalties for "lost" or "missing" footage if not criminal charges (destruction of evidence).