I’ve read about this on Business Insider here: Here’s One Theory About Why Cops In America Kill So Many People
The chart shown on is very interesting and so are the theories behind it.
«The FBI reports that in 2011, cops in America killed 404 suspects in acts of “justifiable homicide.”» – Business Insider
«Last year, police in England did not record a single shooting fatality, with officers across the country only firing weapons on three occasions. Cops on the street in England do not carry firearms.
In Australia, where police do carry handguns, gun control is relatively tight. Police in some states receive special training for dealing with mentally ill suspects.» – Business Insider
“We see this as a product of the continuing arms race between law enforcement and civilians that has been going on for decades.” (…) The arms race means “police officers have legitimate fears about the nature of the firepower they are confronting on a daily basis” – Business Insider