The civil lawsuit filed in St. Louis County, Missouri, names the city of Ferguson, former Police Chief Thomas Jackson and former police officer Darren Wilson as defendants, Reuters reports.
The lawsuit seeks $75,000 in compensation, as well as unspecified punitive damages, and calls for a court order prohibiting the use of police techniques “that demean, disregard, or underserve its African-American population”.
The shooting last August sparked protests and a national movement questioning police use of deadly force, especially against minorities in cities around the country.
The lawsuit alleges that Wilson destroyed evidence after he shot Brown on the street of the St. Louis suburb last August, saying he washed blood off his hands and cleared and bagged the gun used in the shooting.
“We expect to put on evidence that you never heard about before, that you have never seen,” Anthony Gray, one of the lawyers for Brown’s family, said at a news conference on Thursday to discuss the lawsuit.
Gray said evidence had not been presented properly in the previous investigations.
