" We knew that proactive policing was a legitimacy risk for the police, and I stressed that repeatedly,” Sherman said.3 Even more crucially, this is why the Kansas City gun experiment was confined to District 144. That’s where the crime was. “We went through the effort of trying to reconstruct where the hot spots were,” Sherman said. In the city’s worst neighborhood, he then drilled down one step further, applying the same fine-grained analysis that he and Weisburd had used in Minneapolis to locate the specific street segments where crime was most concentrated. Patrol officers were then told to focus their energies on those places. Sherman would never have aggressively looked for guns in a neighborhood that wasn’t a war zone. "

― Malcolm Gladwell , Talking to Strangers: What We Should Know About the People We Don’t Know