Why Did the Policeman Cross the Road?

Can lollipops reduceantisocial behaviour? Could wizards prevent street gambling? Do fake bus stopsprotect pensioners? Can dog shows help reduce murder rates?

Stevyn Colgan spentthirty years in the police service—twelve of them as part of the ProblemSolving Unit, a special team with an extraordinary brief: to solve problems ofcrime and disorder that were unresponsive to traditional policing.

They cou...