A report revealing that the BBC was warned girls involved in Top of the Pops were at risk from sexual predators, highlights diary entries from a teenager from Watford.

The girl took her own life and her diary implicated Jimmy Savile and other TV personalities in child sex activities.

An inquiry into sexual misconduct occurred in the wake of tabloid stories in 1971 about sex scandals at the BBC, including the suicide of Watford’s Claire Irene Ufland, a Top of the Pops dancer who was found dead by her mother Vera McAlpine at the family’s home in Bushey Mill Lane.

The 15-year-old had taken a fatal overdose of her mother’s sleeping tablets, after a series of arguments with Mrs McAlpine about household chores.

The inquiry’s conclusions were kept secret for four decades, but a 64-page report has now been made public following a Freedom of Information Act request.

At the time of Claire’s death, a Sunday newspaper claimed that her diary contained a record of associations with several top BBC disc jockeys and showbusiness personalities, all of whom she alleged had "used her" for their own sexual gratifications.

In light of the much publicised sex scandal involving Savile, Claire’s diary sparked interest, as it suggested she may have been a victim of the former Top of the Pops presenter’s alleged predatory sexual advances.

Subsequently Sir Brian Neill QC investigated how young girls were treated on Top of the Pops and concluded that "isolated instances of immorality may have occurred". Sir Brian was told by BBC’s head of light entertainment at the time, Sir Bill Cotton that any problems with the programme were rare.

Sir Brian interviewed Sir Bill about Claire’s death. The report said: "I questioned Billy Cotton about this matter. The girl had come to see him [Billy Cotton] on several occasions and had invented stories for the purpose of getting access to him.

"He said she seemed to him in a sort of fantasy world but that she had not made any sexual advances of any kind."

Sir Brian concluded: "A programme such as Top of the Pops does... present certain problems in that it introduces into the labyrinthine TV Centre a substantial number of teenage girls."

The report has now been passed to the Metropolitan Police, which is investigating historical sexual offences committed by Savile and others.