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(CNN) – Clashes between protesters and police in Ferguson, Missouri, have calmed down over the last two days. The National Guard will slowly be leaving the are, according to Gov. Jay Nixon. And Attorney General Eric Holder visited Ferguson Wednesday pledging to the community that the federal investigation into the police shooting of unarmed black teenager Michael Brown would be "fair and independent."
"The community feels better, and knows that the federal government is now taking an expansive view of this case," said Rep. Lacy Clay, D-Missouri, whose district includes Ferguson.
And that federal presence is necessary to ensure a fair investigation, says the congressman.
"I also have serious concerns about the local prosecutors, about their ability to fairly prosecute this case in the interests of justice. To deliver justice to this community, or to Michael Brown's family. And I say that because we have a track record," Clay said in an interview with CNN's "The Lead with Jake Tapper."
"We have something to look at in previous incidents of police shootings. Where there was no prosecution, where it was claimed to be a good shooting. If there's any such thing as a good police shooting," he said.
For more of our interview with Rep. Lacy Clay, check out the video above.