Police in Belgium does not bother to catch street racers – there are radars with cameras installed on the roads and when someone speeds on the road – the camera takes a picture of the car and its license plate. Then, the ticket is sent by snail mail to the driver’s home address.
Sometime ago, a radar showed that a car was speeding at 200 miles per hour! Of course, the police wanted to see what kind of car that was and checked the picture, but it was empty. The car was too fast for the camera – it drove away before the camera could snap the image.