what happends when somone
then uses the open database to see if the bike or laptop or whatever else that has been stolen , to check if it's been reported as stolen yet , as in not everything stolen ends up on a register as most people will probably not be able to find there receipt from 2 years ago for that bike , or 3 years ago for that laptop thats been sent to the accountant for 2010's finances. how many queries of stolen goods before you get asked why do you keep asking about stolen goods ?.
as an idea how about making it mandatory to fit gps trackers to the frames of all bikes in the central tube of the frame ? it's not like you can not take the bike outside , if stolen it will report not only its current position but its data track for the last two weeks its been missing, can even take power directly from the dynamo for the lights , now mr plod can go and take said nicked bike back from said thief or fence , sure you can cut the frame in half to destroy the gps unit to prevent tracking, but that might hurt the resale price of said stolen bike if you have to cut it in half, what do you think ?