A FORMER detective who led the inquiry into the notorious murder of Sarah Payne has backed a new protection scheme which comes into effect in Dorset today.

Martyn Underhill, who now lives in Poole, said he is a keen supporter of the so-called Sarah’s Law, which allows parents to check if people in contact with their children are registered sex offenders.

Officially known as the Child Sex Offender Protection Scheme, the initiative comes into force in 18 police force areas across England and Wales today.

Details of sex offenders will only be given if a specific request has been made and strict criteria are met, unlike a scheme in America in which details of paedophiles are actively publicised.

Mr Underhill has described the scheme as “another tool in the tool box against paedophiles” and said pilot studies have revealed it is likely to be used most by fathers who are concerned about a former partner’s new partner.

It can be used by parents, grandparents and other interested third parties who are concerned that a person poses a risk to a child.

“This is great news for Dorset – empowering parents in the fight against paedophiles can only be a good thing” said Mr Underhill, who was the Detective Chief Inspector who led the inquiry into eight-year-old Sarah’s murder.

“It’s very appropriate to see this happen in the year that Sarah would have celebrated her 18th birthday.”

It is 10 years since predatory paedophile Roy Whiting lured Sarah to her death in Sussex. He has since been jailed for life.

Her mother, Sara, has led the campaign for the new law.

Mr Underhill’s expertise has led to him being involved in other high-profile cases including the murders of 10-year-olds Holly Wells and Jessica Chapman in Soham.