Two solutions: (1) Only black officers should deal with black perps, and (2) white officers should not engage with a black under ANY circumstance. If there is a crime and the perp is black, call a black officer. Too bad if the perp gets away or does more damage while waiting for the black officer to get there.
In fact, just to be particularly snarky, how about this: only black people can become cops at any level any more in this country.
I agree.