USA - 409 People killed by Police in 2012. England 1 Policeman fired 1 shot - no one killed by Police.

http://theimmoralminority.blogspot.com/2014/08/in-2012-409-people-were-killed-by.html

Courtesy of PRI:

In 2012, 409 people were shot and killed by American police in what were termed justifiable shootings. In that same year, British police officers fired their weapons just once. No one was killed. 

In 2013, British police officers fired their weapons all of three times. No one died. According to The Economist, "British citizens are around 100 times less likely to be shot by a police officer than Americans. Between 2010 and 2014, the police force of one small American city — Albuquerque in New Mexico — shot and killed 23 civilians; seven times more than the number of Brits killed by all of England and Wales’s 43 forces during the same period.