First, it is not my job to point you anywhere. If you’re really interested you can find all sorts of research and studies on oppression and inequality in America specifically targeting Black people.
Secondly, please don’t tell me what to claim about cops. All cops aren’t racist because all cops aren’t White, but no cops are good, because they stand by and watch bad actors silently.
Clearly you’re tangled up in your underwear about racism, what’s good, what’s bad, and not capable of having intelligent conversations. Additionally, you want someone to do your homework for you, just like a lazy, mediocre, immature, deflecting racist.