Lauren Martell claims to have witnessed an alleged incident involving Rolf Harris in the bathroom of a London music studio in the early 1990s.
The woman contacted the Metropolitan Police in November when she first heard of the investigation into Jimmy Savile.
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Italians go to the polls in a referendum on Sunday which could spell the end of Matteo Renzi's reign as prime minister.
A thief who posed as a council worker snatched cash from an 86-year-old woman's pension book, the Met Police said.
Drivers in Scotland will be banned from smoking in cars where children are present from this week.