A TEAM of retired senior detectives is being brought in to help catch the killer of murdered shopworker Jenny Nicholl.

It also emerged yesterday that the Army has been asked for its help to find Jenny's body.

The retired detectives will carry out a review of the North Yorkshire Police investigation.

Detectives hope the retired officers - who have extensive experience of serious crime investigations - can suggest new lines of inquiry.

Detective Inspector Peter Martin, who is leading the investigation, said: "This is standard procedure in line with normal routine best practice on an investigation of this kind.

"We are also holding an invitation day later this week when we will be discussing the progress of the investigation with experienced senior investigating officers from within North Yorkshire Police and from other forces, together with experts from the National Centre for Policing Excellence.

"We want to ensure that everything that can be done, has been, or is being, done within the remit of this investigation."

The review will begin tomorrow.

A team of specialists from the Royal Engineers will use underground radar equipment to scan the countryside around the 19-year-old's home town of Richmond.

Speaking on a website set-up by Jenny's family, the teenager's father, Brian Nicholl, said: "For now, Ann and I continue to live our lives day to day - some days are better than others.

"We remain focused on helping the police in any way we can and we are in regular contact with our family liaison officers."