Body cameras help cops, not the people. There are a multitude of reasons. Off the top of my head:

1. Cops (and their prosecutors) get to review them to build a case. Defendants never get to do that. This allows cops and prosecutors to redraft affidavits to justify illegal and corrupt policing.

2. In most places cops get to choose when to turn on and off their cameras. In many places they can do the same with dash cams. The drug planting Baltimore cop videos that have come out over the past week are just a tiny glimpse into the corruption of policing that body cameras have been used as a workaround for (the cops screwed up, but those body cams have been used to throw likely dozens or even hundreds of innocent people into prison).

3. The camera is looking at it from the perspective of the cop. Studies have shown that people are much more likely to judge the person being filmed than the person filmed. This is why the most progressive places have prohibited interrogation videos that film from behind the investigators.

4. Victims of police crimes do not get to see the videos. They need lawyers to be able to get them. FOIA rules allow cities to endlessly suppress video, especially if it is “part of an investigation” that they are dragging out.

5. Even when video shows the cops doing wrong, it doesn’t matter. Cops still get away with their crimes. But if it shows the people doing anything marginally questionable they get nailed to the wall. The only type of cameras we support are those in the hands of the people, pointing at the cops, with no ability for the police to “lose” or suppress the video.

6. There have been some great articles written by folks on the ground highlighting how body cameras are a way for cops to act like they’re being oppressed with constant surveillance when they’re just trying to “protect and serve,” while politicians can beat their chest and say that they’re doing something to rein in out of control cops. It is a way to make people think, “finally, something has been done — now I can stop paying attention to terrorist policing.”