A former health worker in Rochdale has told ITV News there should be a full national inquiry into child grooming.
Sara Rowbotham helped convict nine Rochdale men of child sex abuse.
Ms Rowbotham says that a report today into the failure of police and prosecutors to catch more abusers, doesn't go nearly far enough.
ITV News Senior Correspondent Emma Murphy reports:
The Prime Minister has called for "very early intervention" in cases where police and social services suspect child sexual exploitation.
"Those agencies, particularly the police and social services who often know about these people and know what is happening, they need to intervene and act more quickly," David Cameron said at a Q&A session in Cheshire.
Prime Minister David Cameron has said one of the biggest lessons to learn from the child sexual exploitation report is that "very early intervention" is needed.
ITV News Producer Vincent McAviney reports:
Rochdale MP Simon Danczuk has told ITV News the child sexual exploitation report "doesn't go far enough".
Echoing the comments made by Rochdale whistleblower Sara Rowbotham, Mr Danczuk said, "If she says this report doesn't go far enough then that's good enough for me."
He said the report, led by Stockport MP Ann Coffey, was "really attempting to shift the blame away from the perpetrators and away from the police, and towards public opinion."
"There is certainly a need to learn [from abuse cases] across the country as a whole," the MP added.
The health worker who was key in bringing the 2012 Rochdale child sex abuse case to trial has called for a full national inquiry into child grooming.
Sara Rowbotham claimed today's report into child sexual exploitation in Greater Manchester does not go far enough, and stressed that both police and social services should be held to account.
ITV News Senior Correspondent Emma Murphy reports from Manchester:
The health worker responsible for gathering the main evidence in the 2012 Rochdale child sex abuse case has told ITV News Ann Coffey's report "doesn't go anywhere" to ensuring it never happens again.
Sara Rowbotham said she had "tried hard to make it clear" to the authorities that children were being sexually exploited but that "nobody did anything meaningful" to stop it.
"Ann Coffey's report doesn't go anywhere to address any of that, it doesn't go anywhere to ensuring that that's never going to happen to anybody again," the whistleblower said.
"She doesn't offer concrete solutions, she doesn't absolutely say we have zero tolerance, it doesn't go anywhere to address the injustice and the absolute terror that happened to those children in Rochdale," she added.
Stockport MP Ann Coffey, who led a report into child sexual exploitation, has said the authorities' response to abuse "shouldn't be a postcode lottery".
ITV News Granada Political Reporter Daniel Hewitt reports:
"Response to child sexual exploitation shouldn't be a postcode lottery." Children move around, she says. Police teams need to work closer.
A whistleblower has told ITV News the police were "cherry-picking" which of the Rochdale abuse perpetrators they were going to arrest.Read the full story ›
A whistleblower has claimed police put a "ceiling" on the number of people they could arrest in the 2012 Rochdale abuse case.
Sara Rowbotham told ITV News, "They didn't arrest enough perpetrators."
"They said there was a ceiling on the number of victims they wanted to interview, there was a ceiling on the number of perpetrators they were going to identify," the former Rochdale Crisis Intervention Team coordinator.
"[They said] they had to stop at some point because it was too big for them to cope with - so they limited the investigation solely to nine or 10 perpetrators."
The whistleblower in the 2012 Rochdale child sex abuse case has told ITV News she "told everybody" about the abuse that was going on, but no one listened to her.
"I told as many people as I possibly could," health worker Sara Rowbotham said.
"I followed up those referrals, made phone calls, tried to find out what action was being taken, banged on every possible door that I could think of to get support".