A rare look at life in Ashworth top security hospital
19 July 2013 Last updated at 18:47 BST
The BBC has been given rare access to Ashworth high security hospital near Liverpool, which treats some of the UK's most dangerous and disturbed criminals.
Among them is the Moors murderer, Ian Brady, who last month lost his legal bid to be transferred to a prison. He has been at Ashworth for 28 years.
Judith Moritz reports.