Two Bedfordshire Police detectives are to face misconduct hearings over their handling of allegations made against paedophile Ian Watkins.
The Independent Police Complaints Commission said an investigation found the police force "took immediate steps" to investigate allegations of child abuse which were made in 2012.
However the watchdog said it had recommended two detectives have a case to answer for misconduct for not complying with force policy on recording decision-making, and not pursuing all reasonable lines of enquiry.
The watchdog concluded "neither officer had a case to answer" in respect to complaints made that the force failed to protect an 18-month-old.
IPCC Commissioner Jan Williams said: "Nothing was found by our investigation to say the force could definitely have prevented any offending, or contributed to bringing Ian Watkins to justice sooner."
The watchdog has agreed with Bedfordshire Police’s decision that the two detectives should receive management action.