cameras

So I was involved in an incident today in one of the break rooms off of legacy pack, and I'm just wondering if there are cameras in the break room, should I need proof? I don't see any in the ceiling like there are out on the floor so I'm assuming the only ones point at the food we can buy. Just...

Often, I see replies where TMs will say that you cannot be coached or written up, or otherwise disciplined, from camera footage. My question is... where does it say that?