ndzied1
Lifetime Supporting Member
Maybe more in the realm of social engineering than safety rated, I would consider putting a security camera in each area pointing at the cells with signs stating that the cameras are in use. Again, this is not a safety measure but if multiple people conspired to defeat the safety measures there would be some proof. This also assumes that management doesn't want the operators to defeat the safety measures. Sadly, that may not be the case at some facilities.