At least you have cameras. I would just be careful with the way you word things. Depending on how Cliquey your workplace is, they could try to turn it on you. Someone did me and ended up exposing themselves. They got fired. Can no longer work in childcare and I got a raise LOL
You can definitely say that. That sounds professional- and at least you did say something, Do you have cameras with audio recording? We have cameras on our transportation vans and throughout the building. The ones on the vans have audio. The ones in the building are just visual. But they have saved my ass multiple times.
I would message your supervisor- telling a coworker to shut up can cause workplace drama. I know at my workplace if something like that was happening and I did not say anything I would also be hold as much responsible as the person doing it. I have turned so many people in over the years- and not a single one of them knows itÂ’s me.