The police can do it, I've seen it done, a car side swiped a row of bikes outside a bar one evening quite a bit of damage to one bike, the car didn't stop but there was a young guy standing there he jumped on his bike and chased after them and got the number, within 10, 15 minutes the car was owned by a Thai and he rented it to a Russian woman, there was no denying it as she hit the bikes it ripped her wing mirror off plus the damage down the side of the car,