In a report published last Thursday by the West Berkshire Mental Health Trust, it also confirmed staff and patients were involved in sexual relationships during the time that the disgraced TV presenter was heavily involved with the high-security psychiatric hospital.

Savile made contact with the hospital in 1968 and his association with it lasted until 2004.

The report stated: “We have descriptions of 10 allegations of sexual assault directly related to Broadmoor, and one allegation of indecent exposure to a minor. Six of the allegations of assault involved patients at the time (one male and five female), two involved staff and two involved minors.

“On the basis of the detail and consistency of their accounts and the circumstances of the assaults, we conclude with confidence that at least five of the 11 individuals were sexually abused by Savile, and that it is more likely than not that he also sexually abused a sixth.” The report confirmed Savile was accepted into the hospital by the then medical superintendent who authorised the predator’s accommodation at Broadmoor and his use of keys, which allowed him unrestricted access to ward areas. However Savile was unable to access some wards with tighter security and where staff did not trust him.

The report accepted there were other areas where Savile was able to gain access to patients – often because staff were scared he could get them fired.

The report said: “Savile could be charming and persuasive, at least to some, but at the same time was grandiose, narcissistic, arrogant and lacking any empathy.

“He was also very manipulative, and many staff were convinced he had close connections in high places and had the power to have them dismissed.

“Savile’s general behaviour toward women was often flamboyantly inappropriate, including extravagant forms of greeting, inappropriate remarks and physical contact.” It added until at least the late 1980s, female patients were obliged to strip completely to change into nightwear and to take baths, watched by staff, who were sometimes joined by Savile.

The report also revealed during Savile’s reign of terror the “institutional culture in Broadmoor was previously inappropriately tolerant of staff–patient sexual relationships.” It said fewer reported assaults by Savile had come to light at Broadmoor than at other NHS hospitals with which he was closely associated.

The report added a num-ber of security improvements had since been made.

It said: “Current policies, procedures and practices seem to us to minimise the probability of a recurrence of the sort of abuse seen in Savile’s time.” While Savile raised millions for charities, the report dismisses his fund-raising for Broadmoor as “trivial”, giving “relatively small donations of prizes and equipment”.

It said: “His celebrity was seen as being of value to Broadmoor, although it is possible his association with the hospital brought more benefit to him than to it.”