Various 'bitesize' examples
National

National Criminal Justice Arts Alliance (NCJAA), represents 900 individuals and organisations delivering creative interventions in prisons, on probation and in the community. NCJAA hosts an Evidence Library of key research and evaluation documents relating to the impact of these interventions.

Building Resilience and Overcoming Adversity through Dance & Drama (BROAD) is an innovative dance theatre pilot programme designed for vulnerable groups in prisons, secure children's centres and secure hospitals. The project was co-created by Odd Arts, who have been delivering forum theatre- based work in such settings for many years, partnered with dance Company Chameleon.

Koestler Arts is a prison arts charity encouraging people in the criminal justice system to participate in the arts. Collated research, evaluation and impact reports on the effectiveness of arts in prisons can be found here. 

Helix Arts is a participatory arts organisation based in Newcastle upon Tyne that works with a range of socially excluded groups, including (ex) offenders.  A case study, Participatory Arts and Young Offenders covers the issues art and desistance, working with young offenders and restorative justice.