article_snippet: Scotland Yard said a 71-year-old had been questioned at a police station in Peterborough.
article_snippet: his is currently serving his sentence at Littlehey Prison in Cambridgeshire, which is not far from Peterborough.
article_snippet: A Scotland Yard spokesman said it has spoken to 17 people as part of an award-winning ITV investigation.
article_snippet: Inquiries continue, A Scotland Yard spokesman added.