Stephen King was a paedophile while portraying himself as an expert in child protection.
King kept a diary of the sexual abuse
How did he evade detection for so long, given his public profile?
King was once consulted by the police on how to tighten child protection procedures.
Ironically, the Metropolitan Police's unit tackling paedophilia is now hoping that publicity about King's conviction may persuade other young girls to come forward if they have allegations to make.
BBC News correspondent June Kelly said police believed that King was responsible for abuse going back more than 30 years.
King once made a submission to the Sentencing Advisory Panel (SAP), which consulted publicly about sentences for internet pornography.
The SAP sent those views to the Court of Appeal so it could issue new sentencing guidelines, but the panel stressed that King's views were not useful.
Martin Wasik, of the SAP, confirmed to BBC News 24 that King had made a submission to the panel's consultation process but that "what he had to say was not helpful to what we were trying to do".
He said: "In the course of the consultation many individuals and organisations responded to us and we had some responses from individuals, including this particular person.
"I have to say that there were a minority of these responses which we did not find helpful and that response was in that category."
Mr Wasik added: "It is very strange that someone could have such extreme views and that that would not become apparent, if he was organising conferences and so on."
June Kelly said that despite King portraying himself as a child protection expert, he was never a government advisor.
She added that reports of him staging lectures which police officers attended were also inaccurate.
She told BBC News 24 that he had worked for a company which organised lectures where the audience included members of the police and professional bodies.