One is owned by the government. Another is owned by a private company that extorts motorists. These fines never reach the DMV unless you refuse to pay.
They are usually on the roadside in large metal boxes as opposed to being mounted on above the light signals.
Accidents happen all the time. Work trucks hit pot holes and paint splashes onto those cameras blocking the lens and flash.
Debris falls of trees knocking the cameras down.
Tea falls out of ships on rough seas in Boston Harbor. All kinds of accidents can happen.
Be safe out there.
I got a ticket from one these from Pennsylvania. Never been there in my life but was curious of the picture they took. It was obviously labeled California, another state I’ve never been to. They threatened to send it to the Pennsylvania DMV and I said go ahead. Nothing happened. Didn’t even get an infraction but I did get a rush of spam following that interaction. I think they just sell your data and you talking to them just confirms your info is sellable.