Jeez; no wonder nobody gets convicted of anything in England!
Scottish procedure for above (or at least it was a few years ago; and AFAIK procedure hasn't changed much other than the fact that they are trying to do increased workload with reduced manpower):
Enquiry Officer, or in his absence any other Officer who wants to see thieving scumbags locked up, on receiving information that stolen property is located at a specific address, goes and visits a friendly local Justice of the Peace; takes the oath and obtains a search warrant. Police go round and request entry to property. If denied entry, "the key" is used to put the door off its hinges and entry is gained. Premises are searched, including any garages, outbuildings, sheds etc., and hopefully bike is found. Any other items of interest are also taken at the same time. Householder and anyone else suspected of being involved in theft of property are detained for further enquiry and taken down to the local cells for a wee lie down, body search, and interview.