A friend of mine once went to the Police depot in Manchester to pick up his stolen CB900, and got another one for spares free - they were recovered from a lockup together, and the Police cleared up two crimes for the price of one.
He didn't protest too much, in fact I bought the 'spare' off him for spare parts- it would have been a pain to register, but I had a CB900 lowrider on the road at the time.