“The camera is not a video camera, it is a still camera that takes a snapshot about a second or two after the light turns red.”
Some of the cameras may be still cameras, but not all of them are!
How do I know that?
Because I was ticketed (by mail) for a “rolling stop” on the morning after Hurricane Sandy.
I was out & about in my car, looking for a place to get some breakfast, as I had no electricity at home. As I approached an intersection, I spied a Burger King that was open–the only business in several square miles that was actually open! I was apparently so excited about finally being able to get something to eat, that I did not make a full stop at the intersection.
How can they prove that it was a rolling stop?
Because on the summons that they mailed to me, in addition to a very clear photo of the back of my car, there was a link to a website where I could view a brief video of the situation. When I visited that site and entered the password that was provided, sure enough, there was a video of me doing a “rolling stop” at that intersection.
I guess that it depends upon which profit-making entity is running the local red light cameras for the government. Many of them may be merely “still” cameras, but I know from experience that some are actually video cameras.
Incidentally, I wound up paying $85 extra for my breakfast that morning as a result of my rolling stop and that damned video camera.
But, as others said, there are two different issues here–speed cameras are apparently different from red light cameras.