Around the country, there have been calls to significantly reform or even end the practice of keeping police gang databases, along with other gang policing practices. Last year, the nonprofit newsroom ProPublica found glaring errors in the Chicago Police Department's gang database, including people who were not gang members, people who were deemed members of multiple, rival gangs, and people who were elderly or even dead.
ProPublica Illinois, a nonpartisan, nonprofit organization that does investigative journalism, recently published an article about inaccuracies in Chicago's gang database. Police and law enforcement officials routinely cite the gang database when investigating and prosecuting crimes. The database is also used for immigration enforcement, criminal background checks and other purposes.