Yes chris, you have to send back a letter saying you do not know who it was and could they send a photo to show the driver (knowing they cant) so you can help them with their enquiries. It usually stops there, but if they do send one even if it blatantly you send them another letter saying along the lines of you have used all diligence and you are still unable to identify the driver, but give them names and addresses of people you think it could be, like the mrs or a friend etc, and if the police ask these they just say no it wasnt them either.
