Alison Holt, BBC social affairs editor, has been given exceptional access to the clients of a Nottingham charity that works to reintegrate men who have been convicted of sexual offences.

'John, Matt, Dan and Liam', not their real names, are determined to turn their lives around after prison sentences. We hear how they work towards this with the help of the staff and volunteers at the Safer Living Foundation, the only charity of its sort in the country. Always mindful of the victims of sexual crime, the principal aim is to prevent further offending and the creation of further harm.

There are hurdles to overcome - public abhorrence, plus grave difficulties with accommodation and work among them .

The Foundation also runs Aurora, an online advice scheme for people who have not offended but who are worried about their sexual thoughts.

Presenter: Alison Holt