A few things to consider:
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.
Think about that. In 2013, cops in the U.K. fired their guns three times. Last week, in Ferguson, Mo., a cop shot an 18-year-old twice as many times as every cop in Britain fired off a round in 2013. And the Ferguson cop got of six times as many shots in one encounter with an unarmed black teen as every cop in Britain fired in 2012.
One day, someone is going to give a racial breakdown of all of the U.S. shootings. I suspect the above German photo pretty much gives the answer on what to expect.