"These crimes shocked everybody, not least the five women who were traumatised as a result of being sexually assaulted by this young boy.
"For such a young boy to have committed such appalling attacks is both disturbing and unusual.
"However, this young boy has not yet been sentenced before a court so at this stage, I do not want to speculate on his motive or my own private thoughts on the offender. "
St Mary's Sexual Assault Referral Centre in Manchester provides a comprehensive and coordinated forensic, counselling and medical aftercare service 24/7 to anyone in Greater Manchester who has experienced rape or sexual assault.
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Greater Manchester Police said "inquiries are ongoing to fully understand the circumstances of the incident."
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He served in Margaret Thatcher's Cabinet as Home Secretary in 1989 and was also a former Governor of Bermuda.