I don't believe that there is any place in society today where racism is more prevalent than in our criminal justice system.
And yet, how the unfortunate people that fall into the clutches of the police, courts, and prisons are treated is determined more by the color green, than by black or white.
This may be hard for some people to accept, so I have two studies to back up this claim.

All types of discrimination in America are frowned on by either liberals or conservatives.
Racism, sexism and other types of discrimination still exist, but not without vocal resistance from broad swaths of society.

Except for one. Classism.
You can still discriminate against people for being too poor and few will complain.