It's not that difficult to take the camera off before going into the bathroom. And if you forget to put it back on after and then some questionable stuff happens afterwards, well, it's going to look very bad.
If you can remember to punch in and out for your shift, you can remember to take the camera off and put it back on around bathroom breaks.
And when you take away or turn off the camera at some point, you have the problem that the camera wasn't on when someone thinks it should have been. The policeman is attacked in the bathroom. Or he or she gets an urgent distress call and rushes away and does not have time to fiddle with the camera.
There are no very simple solutions to this, no silver bullet.
Sure there are, there are going to be corner cases no matter how you slice it. But the people with more power should be the people held to a higher standard.
The guy who doesn't have commit access can't be blamed for breaking the build because if someone accepted his pull request without vetting it properly, now that's on them. See how this works? It's straightforward. More power, more responsibility. Don't like that? Don't become a police officer.
There are plenty of existing professions where people get to second guess what you do; doctors and nurses can be sued for malpractice, engineers who stamp drawings can lose their license and more if a building falls down, pilots can easily lose their life if they mess up badly enough.
I don't see how saying "there are SOME bad cops and there's no way to tell a priori who they are so for the sake of public safety everyone has to wear a camera because these incidents are relatively rare and that's the only way to be sure"
So what was wrong with the "activate a mechanism (maybe a button) to disable the camera for few minutes"? Then there is no issues like this, unless of course the cop gets attacked in the bathroom, but that's not super likely, so let's not worry about it
This is an excellent argument for having surveillance cameras not just with policemen, but in all (e.g.) restaurant bathrooms. Nobody is going to view the footage unless there is an incident.
But do we trust that? No. Do the police unions trust that? No. Do people who happen to be in a bathroom at the same time with a policeman trust that? No.
Personally I wouldn't care if every public/restaurant/whatever bathroom had a camera, why should I? The stalls aren't going to have them, it would just increase over all security and it wouldn't take away any of your privacy, unless you are very weird about people knowing that you too visit the bathroom at times.
Unless you are up to something illegal public cameras shouldn't be an issue in the West where we still have rights to do normal stuff
If you can remember to punch in and out for your shift, you can remember to take the camera off and put it back on around bathroom breaks.