not sure if this is a local issue for you chaps, as when I went into the police station yeasterday to report an idiot boy-racer for doing 45 or 50 in a 30 and overtaking at the crest of a hill, the officer on duty said they can't even send a traffic officer to have a chat to him as it's only my word against his. They did make a note in the computer and said they'd check with PNC as well. If the vehicle is known to them then they have extra intelligence on it's movements.