I am an ex-cop, not working in that field anymore.
In police academy, no one is taught to shoot black people in an effort to kill them off. During field training, no one is taught to shoot black people in an effort to kill them off. In police academy, there are even black instructors.
When it comes to fairness and impartial policing, I did that. And there are other cops who do that. I am a minority. I was impartial. So if I ticketed someone, it was because they failed to obey a traffic law, not because they were black. I would apply fairness to all drivers, white black, Hispanic and Asian or whatever else. If I gave a warning for an offense to a white driver, I would do the same for a black, Hispanic or Asian driver.
No one ever got shot by me. And actually, most cops go through their career never taking a shot.
I'm not denying there is a problem. You are assuming I am denying it. Actually, there are cops out there who are prejudiced and racists. I saw it in the way they talked. It was subtle. They aren't the majority though. Our police department had hundreds of cops. There are thousands of police officers across the US. Those who make the wrong choices or fail to go by standard operating procedures and training are going to get jammed up and it is of their own fault.
If you think all cops are out to kill black people, then you are stereo-typing all cops based on the action of bad cops.
All police departments want to be fair and impartial because what they really want to do is provide safety and peace. They want to filter out people who will probably be bad cops. There is constant training provided yearly which includes racial profiling, at least in my police department they did because they wanted to remain complaint to be an accredited police department.
The number of rejected police applications was huge by my previous department. They interview applicants and put out questions to filter out people who aren't good candidates, like those who may have a racist or prejudice mentality.