Our school used something called PBS, Positive Behavior Support, and I'm sure most schools use it or something comparable to it. One of it's facets is to chart the discipline administered in the form of "write-ups" and suspensions in the building on a monthly basis according to teacher and then grade level to see where the issues are. The data is presented at monthly staff meetings. So, schools have been self-monitoring the discipline in an effort to change and improve the system.
The effect of this criticism is to imply that teachers and administrators are picking on minorities and are treating them unfairly. Nothing could be further from the truth. But the effect these regulations will have on the behavior of students who realize they can not be suspended will be disastrous.
When I really worked for a living circa 1978 we were sent a survey from Hdq asking why blacks and hispanics were over represented in Youth Authority institutions. All of our staff, every race and ethnic group, said, because they commit more crimes.
We never heard back on the results of the survey.