That doesn't address the question of why so many black, completely unarmed suspects, suspects running away, and so on, are shot, except in terms of a lack of training and professionalism by the police. Police, who are supposed to be equipped to deal with dangerous situations, confess to being scared to death. They are especially scared of black people, which could perhaps be excused on the part of an untrained lay person. Do you think military police and members of the clandestine services respond to danger by emptying their weapons into the subject? I don't think 5% is a very impressive number. But it's about the money. Police mostly handle routine social scut work and most are not really emotionally and physically trained to the level necessary to deal with dangerous situations, and policing is not even in the top ten of dangerous occupations. The public simply doesn't want to assume the cost of training police to the level it would take. And, no, I'm not going to swap studies.