The musical, at the Citizens' Theatre in Glasgow until 17 November, was conceived and directed by Cora Bissett.

BBC: Glasgow girls' protest inspires musical

Mr Yates also admitted police could have done more to catch Napper and prevent further crimes, in particular the murders of Samantha and Jazmine Bissett.

BBC: Reaction to the Nickell admission

Other footage shown included an incident where a chair was broken by Miss Bissett where she was told by Dove that she would have to sit on the floor in the future because she didn't "deserve a chair".

BBC: Winterbourne View: Care worker's victim 'loved pain'

"The main issue is making sure that people who interact with consumers actually know what they are talking about, " said Wes Bissett, senior counsel for government affairs to the Independent Insurance Agents and Brokers of America, an industry group that is promoting the restrictions on navigators.

WSJ: Role of Health-Law 'Navigators' Under Fire