Waiting for shoplifters in Shrewsbury is a bit like fishing, you never quite know when one will bite.<br />That's how one officer on Operation Darwin this week described the policing response to shop thefts and antisocial behaviour in the town.<br />Operation Darwin and its cousin, Operation Forefront, were tied together for a morning of action against shoplifting and anti-social behaviour on Wednesday. It involved two plain clothes officers, and six or so members of the town's Safer Neighbourhood Teams, led by Sgt Phil Parke.