In response Response to the shooting Use_firearm and subsequent unrest , the U.S. Department of Justice ( DOJ ) conducted Action an investigation into the policing practices of the Ferguson Police Department ( FPD ) .

In March 2015 , the DOJ announced Expressing_publicly that they had determined Deciding that the FPD had engaged Participation in misconduct Action against the citizenry of Ferguson by among other things discriminating Judgment_communication against African Americans and applying Using racial stereotypes , in a `` pattern or practice Practice of unlawful conduct Action . ''

The DOJ also found Know that Ferguson depended Cause_to_make_progress on fines and other charges generated Creating by police .

On June 20 , 2016 , the US DOJ announced Expressing_publicly that it would not be filing Submitting_documents any criminal charges Judgment_communication related to Johnson 's death .