Draca, Mirko; Machin, Stephen; Witt, Robert - 2008
In this paper we study the causal impact of police on crime by looking at what happened to crime before and after the … percent in the six weeks following the July 7 bombings. During this time crime fell significantly in central relative to outer … London. Study of the timing of the crime reductions and their magnitude, the types of crime which were more likely to be …
