My wife was in DE about 9 years ago with my son and one of these cameras caught them going through a red light. They send me a ticket in the mail, to which I replied I had not be in DE in years. They sent me the photo of the car plate and one showing it behind the stop line when the light was red and one in the middle of the intersection. They told me if it was not me driving that I could get off by telling them who was the driver. I replied that there were multiple drivers in the car and unless they could send me a picture of the driver I was not going to risk perjury by just picking which one it might have been and that the drivers had no recollection of going through a red light or who was driving at the time. That was the last I heard from the company in MA that runs their system.
Yeah, that's been one of the issues regarding "cam" tickets... not knowing who was the driver, as the "violation" almost always goes against the driver's record, not the car owner. I wonder if that's what's keeping the fruition of violation cameras. BTW, I happen to know where there's a nasty little set of them in Warren County.
Intersection of Rt. 519 and US 22, near Phillipsburg Mall.
These, I believe are more "red light & improper turn" cams than speed, but... I've actually seen them work. In evening (dark) hours, you can see the flashes pop off when someone "commits a violation."
I believe it's also true that (at least in re: true LEO stops) that out of state drivers get targeted more than in state... the logic being that out of state drivers are less likely to be available to challenge the violation in court. Easier just to pay the fine, or so they believe.... but when one has points and insurance premiums on the line, it makes more sense to make the required effort to challenge the violation if possible.