None of the police officers involved in the investigation of the Rochdale child sex abuse scandal will face misconduct proceedings.
Although one of the seven officers issued with misconduct notices was found to have a case to answer, the detective inspector has since retired from Greater Manchester Police (GMP).
An ex-detective said a report on police failures in the Rochdale child sex abuse scandal gave no new insights and that children in the area were still at risk.
Margaret Oliver said: "I know of men who have never been arrested, who are still walking the streets of Rochdale, who victims have named and accused of abusing them."
Oliver called for a full independent investigation of the kind carried out into similar problems in Rotherham.
"Virtually everything that is in that report today we were very well aware of in December 2010. The question that begs to be asked is why it has taken seven years to report that when that was widely known five years ago by all the officers working on Operation Span," she told the BBC Radio 4 Today programme.
"This was an opportunity, which has been missed again, to bring it all this out into the open. It is a nationwide problem and there is still an overwhelming desire to conceal the truth."
A former Greater Manchester Police detective says a report into the handling of Rochdale abuse does not go "nearly far enough".
Speaking to ITV News, a victim of child sex abuse in Rochdale claims some police officers had "completely lied" about events.
Greater Manchester Police (GMP) issues an apology to victims of the Rochdale child sex abuse scandal.