One Postcode is a mediation and mentorship programme designed to tackle the rising tide of gang feuds occurring between groups of young adult prisoners while in prison.

Prisons remain unsafe for those who live and work there. Rates of self-harm and assaults are at the highest level ever recorded; and assaults on staff have more than tripled in just five years.

Prison Reform Trust – June 2019

One Postcode aims to reduce violence and resolve conflicts in prison and to help those who take part to disengage permanently from gang culture. Central to our programme is the recruitment of peer mentors from amongst prominent and trusted prisoners currently in custody, prisoners who are respected and held in high regard by the young adult prisoners. They will be trained in mediation and conflict resolution (Level 3 NVQ) so that they can work effectively with gang leaders and members.

The course will be run by a professional course leader and two peer mentors.

Incentives will be offered to young adult offenders to enrol in the programme and rewards and privileges will be given to those who complete the programme and maintain good behaviour.

To be franchised across the Prison Network.

  • 5-day programme
  • 4 courses a year in each establishment
  • Course Leader
  • 2 Peer Mentors
  • 10 Young Adult Offenders
APF Logo


Young adult offenders often relate to those who have ‘walked in their shoes’, those who have the lived experience of the criminal justice system. The AP Foundation believe that the ex-offender community has an important role to play in resettlement and rehabilitation.

Arts, culture and media programmes are also an effective way of engaging difficult to engage young adult people in productive activities connected with their leisure interests, developing their vocational and transferable employment skills, boosting their employability and reducing re-offending.