Research and analysis

Social Impact Bond pilot at HMP Peterborough: final report

Findings from the final phase of the process evaluation of the payment by results Social Impact Bond pilot at HMP Peterborough.


Between 2010 and 2015, an intervention called the One Service provided through-the-gate and post-release support to adult male offenders released from HMP Peterborough who had served prison sentences of less than 12 months. The aim of the pilot was to reduce re-offending. This process evaluation report draws upon interviews with stakeholders and offenders, case management information, and a review of case files. It explores how the pilot operated and sets out key messages for wider learning.