Following Derek Chauvin's conviction in the murder of George Floyd, the Justice Department launches a "pattern or practice" investigation into the Minneapolis Police Department.
Read MoreFormer congressman John Conyers, who died at 90 on October 27, left office under a cloud. But he also left an important legacy for criminal justice reform: the "pattern or practice" statute that gave the Justice Department authority to go after law enforcement agencies engaged in unconstitutional practices like racial profiling.
Read MoreWhat are pattern-or-practice consent decrees? Trisha wants to know more about how they're being applied in her home city of Baltimore and other cities.
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