The scheme – Circles of Support and Accountability – is run by staff from the child protection charity the Lucy Faithfull Foundation.

It aims to balance the need of people to be protected while providing 'support' to sex offenders so they can sustain crime-free lifestyles.

A 'circle' is set up round a known sex offender and is made up of professionally-supported volunteers who link up with members of the offender's family, police officers, probation staff and treatment experts.

The offender must be committed and is expected to explain his behaviour and actions to the group.

The foundation's development officer, Blair Parrott, said: "Volunteers are told about the core member's past pattern of offending.

"While helping him to settle into the community, they aim to help the offender recognise and manage thoughts and behaviour which might lead to re-offending.

"We are currently running seven other circles around the UK which are proving successful.

"Each circle is unique because it is built round the needs of the core member and each circle lasts for as long as there is a need to support the individual and monitor risk, although volunteers' involvement will diminish over time."

Anyone over the age of 21 can volunteer for the scheme, but should be prepared to give up some free time for up to a year.

They will be required to undergo a selection process, including a criminal records bureau check, and attend a training programme.

Volunteers will have access to telephone and face-to-face support from the foundation.

Call 01372 847187.