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Watch: The video evidence that helped convict Eleanor Williams

By Anna Collinson

BBC News

A serial fantasist's lies that she was groomed by an Asian gang are set out in 50 hours of police videos.

The footage, shared exclusively with the BBC, tracks Eleanor Williams' deceit as it becomes more elaborate over a three-year period.

One video shows her with self-inflicted facial wounds while acting drugged.

Williams, 23, from Barrow-in-Furness, Cumbria, was jailed for eight-and-a-half years after being found guilty of perverting the course of justice.

False allegations of rape are extremely rare, but when they are made they can seriously undermine the credibility of genuine victims, according to the Crown Prosecution Service.

Warning: this story contains details that some people may find upsetting