Former Conservative MP Edwina Currie told ITV1 Exposure she was "fairly sure" that Sir Jimmy Savile suggested himself for the role at the high-security Broadmoor Hospital in the 1980s.
"He would have been seen as an extremely useful person and to have a high profile doing this is would have been so much the better", she said.
Ms Currie alleges that Savile claimed he had unearthed a series of problems at Broadmoor, and she believes he planned to use information to blackmail staff there.
"We gave him every instrument that he needed in Broadmoor to prey on some extremely damaged individuals", she added.
ITV1 Exposure Update: The Jimmy Savile Investigation will air tonight at 10.35pm.
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