The former police detective who exposed Jimmy Savile a decade ago says that he is now working on bringing down another “very significant” and “untouchable” sex offender.
Mark Williams-Thomas revealed that former television host and radio personality Savile was a prolific paedophile in his award-winning film in October 2012.
The documentary shook the entertainment industry, with the five women who spoke of suffering sexual abuse at the late DJ's hands followed by many more following its broadcast.
The revelations prompted the Met Police to launch Operation Yewtree, which led to the arrests of 19 people and eventual imprisonment of seven of them.
The Daily Star reports that retired detective and child protection expert Williams-Thomas has claimed that he has a similar bombshell about another high-profile person.
Speaking to the i, he said: “There are still people out there who are untouchable.
“There is one very significant person who I've done everything to try and get prosecuted because he is clearly a child sex offender.
“To date the CPS won't prosecute. The police and I have tried really hard to get there.
“He will die in due course and then the floodgates will open in the same way they did with Savile. That's not right. But justice takes many different forms.
“The truth is no broadcaster would have done a programme about Savile when he was alive - we live in a society where there are some people you can't take on and that's really sad.”
Williams-Thomas did not give any details away about who this "significant person" was.
However he hinted that one way in which these types of cases could be made less risky for prosecutors would be if victims gave up their right to anonymity.
He explained: “I've seen the value of lifting anonymity for victims to come forward. It's one of the reasons the CPS didn't have evidence to prosecute Savile when he was alive.
“The media plays a vital role in getting victims to come forward by publicising names, but they have to consider the impact on the accused because there is no more abhorrent crime than child sex abuse.”
The CPS has been approached for comment.