So all I need to do to get Amsterdam police to care about bicycle theft is to install some sort of ribbon that'll get torn off if the lock gets broken, which'll be indistinguishable from the frame getting broken in half ("an accident"). Hook that all up to a GSM modem and a call center and suddenly my local cops will care about crime.
Given that there's hundreds of thousands of bikes stolen a year and the chance of the theft being solved is very, very low, it's very much a "prepare for the worst and hope for the best" thing.
