According to the FBI’s Uniform Crime Report, in 2013 there were 461 “justifiable homicides” by police — defined as “the killing of a felon by a law enforcement officer in the line of duty.” In all but three of these reported killings, officers used firearms.
By contrast, there were no fatal police shootings in Great Britain last year. Not one. In Germany, there have been eight police killings over the past two years. In Canada — a country with its own frontier ethos and no great aversion to firearms — police shootings average about a dozen a year. Link