As far as I can tell, the officers tend to err in different directions depending on whether they are ticketing themselves or OK'ing red light tickets. For examp

As far as I can tell, the officers tend to err in different directions depending on whether they are ticketing themselves or OK'ing red light tickets. For example, in my area, red light cameras also detect when you roll a legal right-on-red. I got ticketed for a very safe turn that I slightly rolled (i.e. I approached slowly and stopped for less than a second because I'd been watching the cross street for several seconds already), which no police officer would have looked twice at. I've heard many other people complain about the same thing.