Source: DOJ Will Undertake 'Wide Ranging' Investigation into Ferguson Police Dept.

An Associated Press source is reporting that "the Justice Department plans to open a wide-ranging investigation into the practices of the Ferguson, Missouri, Police Department following the shooting last month of an unarmed black 18-year-old by a white police officer in the St. Louis suburb."

The source went on to say an investigation could be announced as early as Thursday afternoon. 

The investigation will look at the practices in the past few years of the police department, including patterns of stops, arrests and use-of-force, as well as the training the officers receive, the person said.

The new investigation is separate from the civil rights investigation the DOJ is conducting into the shooting of Michael Brown.