Those cameras are just a way for local governments to tax people, mostly people who don't live in that town. They are no different than small towns that have speed traps with quickly reducing speeds and Sheriffs waiting to ticket the unsuspecting. I'm sure they sometimes read the wrong speed, but overall they are correct. But it's still a bullshirt and unnecessary way to tax people. And the worst part is they are usually done by a private company who are doing it for profit so, they are never going to allow for judgment calls. And, because it's not a criminal offense and is only a civil fine, they can get away with it not being done or reviewed by the Police. You can't get arrested for not paying them, but they can ding your credit.