7 February 2013 Last updated at 06:29 ET

Lostprophets' Ian Watkins case: Police face inquiry

Lostprophets singer Ian Watkins and two women have been charged with child sexual offences

A watchdog is investigating whether a police force acted quickly enough in its investigation of a rock star charged with child sexual offences.

Lostprophets singer Ian Watkins, from Pontypridd, is accused of conspiracy to rape a baby and four offences relating to indecent images of children.

The Independent Police Complaints Commission (IPCC) is investigating whether South Wales Police acted "expediently".

The force referred itself to the IPCC.

Tom Davies, IPCC commissioner for Wales, said: "We received a referral from South Wales Police on 25 January 2013 relating to Ian Watkins.

"Following a thorough assessment I have decided that we will carry out an independent investigation.

"Our investigation will determine whether or not South Wales Police failed to take appropriate and timely action in relation to information they were in receipt of in advance of Mr Watkins subsequent arrest.

"We are aware of four forces having provided South Wales Police with information but, as criminal proceedings are active, it would be inappropriate to publish further information at this time."

Mr Watkins, 35, is charged with conspiracy to engage in sexual activity with a child under 13 and four offences relating to possession and distribution of indecent images of children.

The alleged offences date from May to December 2012.

A 24-year-old woman, from Bedford, has been charged with the same offences as Mr Watkins, while a 20-year-old woman from Doncaster is charged with five of the same offences but not conspiracy to rape.

Mr Watkins will next appear in court on 11 March.