James, Muffins, I know calling the police may seem like the right thing to do, but in my experience they are not interested at all. I've had my bicycle stolen (heavy chain snipped off) from the front of my house and thought I wouldn't have a hope in hell of getting it back. Following day I was talking to my neighbour, and it turns out his security camera overlooks a bit of my front garden - and it had recorded two guys in a van driving up, breaking the lock and taking the bike. You can see their faces and the side of the van (but not the VRN) - and I told the police all of this but, as yet (two months later) I have not been able to convince them to come and look at the video, or let me arrange an appointment to deliver it to them. I'm not sure whose side they are on, but I'm pretty sure it isn't mine.