The 82-year-old man arrested on suspicion of sexual offences by officers from Operation Yewtree was interviewed under caution on November 29 last year, five days after a search warrant was executed at an address in Berkshire.
He has been bailed to a date in May pending further inquiries.
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Olivia's mum is to marry her fiance this weekend, and the couple are dedicating every detail of the day to Olivia.
At the Royal Berkshire Hospital in Reading, ITV News met the beds manager who is tasked with finding enough beds for the day's patients.
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