A record from September 1976 shows suspicions had been raised by his “unusual interest in any adolescent inmate” and staff had to move the boys away from him.
In December 1977 Brady reportedly wrote to Lord Longford to complain that the prison’s principal medical officer had told the governor he should return to segregation. The child killer remained on the wing.
In March 1978 the prison’s senior medical officer (SMO) is said to have expressed concerns about Brady’s residence in the hospital and his contacts with vulnerable prisoners.
Brady was reportedly allowed to watch television with other inmates and given duties including cleaning toilets and showers.
He is said to have lost his duties in autumn 1981 after a young person reported that Brady had had sex with him.
He was moved to Parkhurst on the Isle of Wight the following year.
Frances Crook, chief executive of the Howard League for Penal Reform, said Brady’s high-profile support contributed to an “extraordinary set of circumstances”.
She told the BBC: “What happened, and what he did in prisons, I think, is not extraordinary. Actually, I think it happens and has happened every day for years, and is still happening.”
A Ministry of Justice spokesman said: “There have been huge changes in the criminal justice system in the last 40 years and allegations of sexual assault are taken extremely seriously and reported to the police.