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'People of significant standing will be arrested'

25 October 2012 Last updated at 12:12 BST

The former detective who exposed Jimmy Savile in an ITV documentary has told Radio 5 live Breakfast that there will be arrests of people of "significant standing".

Mark Williams-Thomas also said he thought there could be as many as 500 victims.

Last week the Metropolitan Police said its inquiry into the Jimmy Savile allegations had become a formal criminal investigation involving living suspects and the decision not to prosecute the presenter in 2009 is being examined by the Director of Public Prosecutions office.

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