Cameras or RFID readers in the road? The same way they catch thieves in stores. They know the distance between gate A and B on roads between cities and between

Cameras or RFID readers in the road? The same way they catch thieves in stores. They know the distance between gate A and B on roads between cities and between city entry and exit points. One just needs a RFID with the VIN or license plate encoded in it. For trucks they already have tachographs which record lots driving parameters but mainly distance, speed, driving time, violations. Gen2 also records GPS coorinates at start and stop so it's harder to defeat. The fleet operators need to keep those records for two years. Penalties for modifying a tachograph are quite high, tens of thousands of euros. Someone driving a lot in a certain place probably lives already pays property taxes. If they don't register the vehicle there after six months or so it's the police's business to make sure they do. You see, they don't have to monitor everything very precisely, just 95% or so.