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WASHINGTON, D.C. (AP)—

A law enforcement official tells The Associated Press that a Justice Department investigation has found patterns of racial bias in the Ferguson, Missouri, police department and at the municipal jail and court.

The official says the investigation found that officers disproportionately used excessive force against blacks and too often charged them with petty offenses. The official spoke on condition of anonymity because the official was not authorized to speak on the record before the full report was released.

The official says the report will allege direct evidence of racial bias among police officers and court workers and a system that prioritizes generating revenue from fines over public safety.

The full report could be released as soon as Wednesday.

The Justice Department began the civil rights investigation following the August shooting of Michael Brown, an unarmed black 18-year-old, by a white police officer.