I wouldn’t say that police cameras are hidden, I assume you are referring to bodyworn cams? And I really don’t know who are the misbehaving corpos you speak of. Not saying they don’t exist, just that is super vague. Do you mean cctv for security? Because I dont know if i would call those hidden either?

I don’t really understand how making them offline only makes them any less dangerous? The issue is that the camera is discrete enough that people wont notice theyre being recorded, not that the glasses can connect to the internet.