Have you watched the documentary the 13th? It covers severe issues with the incarceration rate in the United States, for example, the high proportion of black people incarcerated for the same crimes white people are completely let go of or otherwise not charges. How the justice system is very selective on what laws to enforce along racial lines. Stop and frisk turned out to mean “stop all the black people exclusively and search them”. How people are pressured to take plea deals even though they may indeed be innocent. How the police have been known to literally plant evidence or incite violence within communities or protests to force arrests.