I have a problem with the guilty till proven innocent part. They don’t always get the right car.
The red light cams are more cut and dried here.
The photo must catch the light and the car position and tag.
I can imagine with the speed photos that a system could report an incorrect speed, as that depends on the system, making it harder to contest(still have to have the photo).
Here you must go >10 over speed limit to get a fine.
Most people know they did it(here), certainly all the ones I talked to,.