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General overview

Stage of development: Complete

Policy sector: Criminal justice

Date outcomes contract signed: Mar 2010

Start date of service provision: Sep 2010

Capital raised (minimum): GBP 5m (USD 7.73m)

Service users: 1k+ individuals


The Peterborough SIB is intended to reduce the reconviction rates of short-sentence male prisoners leaving HMP Peterborough. The One Service contracted four organisations, St. Giles Trust, Ormiston Children and Families Trust, YMCA and SOVA, to deliver its core activities. St. Giles Trust and Ormiston Children and Families Trust focus on the immediate needs of an o ender and his family before and after he is released from prison. These needs include accommodation, medical services, family support, employment and training, bene ts and nancial advice.Participants voluntarily refer themselves into 'The One Service'. St Giles Trust workers interviewed offenders to assess their needs. supported offenders before release, at the point of release, and into the community. The Ormiston Children and Families Trust supported offender's children and families in that time. SOVA and YMCA provided longer-term, lower-intensity support.

Target population

Adult males (aged 18 or over) who received custodial sentences of less than 12 months and who had been discharged from HMP Peterborough



  • United Kingdom

Service delivery locations

  • Peterborough City Council

Outcome metrics

  • Reduced reoffending (1). A 10% reduction in the number of reconviction events in any of three cohorts of 1000 prisoners. Matched comparison group; evidence of re-convinction events held on the police national computer.
  • Reduced reoffending (2). A 7.5% reduction in the number of reconviction events across all three cohorts of 1000 prisoners.

SyROCCo reports

The following articles are taken from the Systematic Review of Outcomes Contracts Collaboration (SyROCCo) Machine Learning tool.

The tool is a collaboration between the Government Outcomes Lab and machine learning experts from the University of Warwick, that allows you to navigate and explore data extracted from nearly 2000 academic and grey literature publications related to outcomes-based contracting.

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