There's a red light camera case here in NC that is probably 3 years old. It's getting continually kicked up to higher courts. The superior court judge in the case ruled that state statues demand all proceeds collected from law enforcement traffic fines be used for educational purposes, less administrative fees, not to exceed 10%.
The company that installs and maintains the cameras gets about 60% of the $50 fine. A reduction to 10% would kill the program.
Of course, that won't happen until this case makes it to the USSC, which is what the local attorney was aiming for all along. And that won't happen for another couple or few years.
Those pesky little laws again...