Dyfodol Offender Intervention Service

Drug and Alcohol Intervention Service for Welsh Public Prisons.


Cardiff Monmouthshire Swansea

Contact Information

Opening times:

24 hours a day, 7 days a week, 365 days per year.


07487 271273 (9am-5pm Monday-Friday only)




HMP Cardiff, HMP Swansea, HMP Usk, HMP Prescoed

About the Project

The Dyfodol Offender Interventions Service is an integrated partnership provision for South Wales and for the public sector prisons of:

  • HMP Cardiff
  • HMP Swansea
  • HMP Usk
  • HMP Prescoed

The service aims to address the causes of drug and alcohol-related offending and reduce the risk of harm to individuals, families, and peers, by providing individual and therapeutic group interventions for drug and alcohol use and reducing the levels of reoffending.

Eligibility / Referral Process

Must currently be within HMP Cardiff, HMP Swansea, HMP Prescoed or HMP Usk, however, the Dyfodol consortium also operates within HMP Parc and the community.

Adferiad works in partnership with G4S and Kaleidoscope to ensure smooth transfers and releases.