I respond.
"In response to the shooting and the subsequent unrest, the DOJ conducted an investigation into the policing practices of the Ferguson Police Department (FPD).[18][19] In March 2015, the DOJ announced that they had determined that the FPD had engaged in misconduct against the citizenry of Ferguson by, among other things, discriminating against African Americans and applying racial stereotypes in a "pattern or practice of unlawful conduct."[20][21][22] "
https://en.m.wikipedia.org/wiki/Ferguson_unrest