Sorry to hear that Phil,thieving scumbags!!
My m8 had his van window smashed and his satnav stolen whilst parked on his drive.
2 weeks later a friend was driving past my m8s house and noticed that someone was peering through the hedge at his van,so phoned my m8 and he chased him off,after a few phone calls my m8 and 5 friends were chasing him and gradually steering him towards a small ind estate,once on the estate it was just a matter of leading the lamb to slaughter.
Turned out it was the same bloke that did it 2 weeks previous,he got the biggest hiding of his life.
Now that's justice.
John