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It was unclear whether the proposal would affect undercover or plainclothes police officers, or if a state law could apply to federal police forces.

According to the Home Office, the NCA will work in partnership with police forces to investigate cases that "were not progressed through the criminal justice system" in the past.

A freedom of information request made by BBC Wales in March revealed Welsh police forces had identified no current widespread issues with grooming gangs.

It said the NCA would work with police forces to give victims whose cases were not progressed through the criminal justice system "long-awaited justice" and prevent more children from being hurt by such crimes.

Robert, in fact, spent 14 years working in the police force.