Waiting for shoplifters in Shrewsbury is a bit like fishing, you never quite know when one will bite.
That's how one officer on Operation Darwin this week described the policing response to shop thefts and antisocial behaviour in the town.
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.