Just get some black former Marines to patrol the school....problem solved.
Actually not a bad idea. I taught for a couple of years in a mainly black urban high school. Lots of problems there. At any rate, we had a junior ROTC program in the school.
Everyone respected the men who ran the program, an army colonel and an army master sergeant. Both were retired, but both wore the uniform due to the nature of their jobs. They didn't have to do anything physical (that I know of) to get that respect. They just got it.