An investigation has been launched into the local police department in Ferguson, Missouri, where the killing of a black teenager by a white officer sparked prolonged unrest and drew international attention.
The US Justice Department is to look into a range of issues there, including the department's use of force and the treatment of detainees.
The launch of the federal probe was announced in Washington by the US Attorney General Eric Holder.
IN: "We have...
OUT: …federal law"
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Eric Holder, America's top law enforcement official, said that on his trip to Ferguson he'd heard about the community's "deep mistrust" of the police.
He also sought to reassure members of law enforcement.
IN: "I know...
OUT: …of professionalism"
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