Mae'r grŵp craidd o aelodau'n cynnwys academyddion o brifysgolion ledled Cymru a'r rhai sydd â phrofiad gweithredol yn y gwasanaeth prawf, o dan adain Canolfan Trosedd a Chyfiawnder Cymdeithasol Cymru. Ella Rabaiotti o Brifysgol Abertawe yw cynullydd presennol y grŵp ac mae Diana Fologea o WCCSJ yn darparu cymorth gweinyddol. Darperir ciplun o aelodau craidd Grŵp Datblygu'r Gwasanaeth Prawf. Mae nifer cynyddol o Aelodau Cyswllt yn ffurfio rhwydwaith eang yng Nghymru a thu hwnt gan ddarparu profiad a chyngor ychwanegol. Medi 2023

Simon Borja

Simon Borja
Is project Development Manager at Safer Wales. He has worked at Safer Wales for 17 years and has played an integral part in developing some of the charity’s key project areas. He now supports and develops various aspects of the organisation’s outreach work and coordinates the Dyn Project, which supports male victims of domestic abuse.

John Deering John Deering
Is Visiting Fellow at the Centre for Criminology at the University of South Wales. Before retiring in 2022, he was Associate Professor of Criminology and Criminal Justice at USW, researching and teaching in the areas of probation and youth justice. He was previously a practitioner and manager in the probation service.
Martina Martina Feilzer
Is a Professor of Criminology and Criminal Justice at Bangor University. Martina is an active mixed methods researcher looking at questions of practical, culture, and management across police and probation services.
Diana Fologea Diana Fologea
Currently a PhD student studying at University of South Wales. Acts as administrator for: the Welsh Centre for Crime and Social Justice (including the Probation Development Group and the Welsh Youth Justice Academic Advisory Group); Criminal Justice Cymru (an umbrella group for third sector organisations who work in criminal justice in Wales); and Hwb Doeth (the practice development group for youth justice in Wales, consisting of members from the Welsh Government, the Youth Justice Board and Academia).
Ian Fox Ian Fox
Currently a Visiting Fellow at USW, formally worked as a probation officer for many years and was chief officer in Mid Glamorgan. He was seconded to the Home Office as Advisor on Wales and acted as an NPS Regional Manager for Wales. More recently, managed some probation projects in other parts of Europe.
Gwyn Griffith Gwyn Griffith.
Lecturer and researcher in criminology, Law and Criminology Department, Aberystwyth University. Research interests in Youth Justice, risk assessment and factors impacting on crime rates at state and local levels. Worked as a probation officer for Dyfed-Powys Probation Service and then as a Service manager for Ceredigion’s Youth Offending Team, Family Support Services and Emergency Duty Team.
Brian Heath Brian Heath
Was the Chief Probation Officer for Jersey and After Care Service 1999 – 2019 and Board Member Confederation of European Probation CEP 2017-2020.  Currently Visiting Fellow University of South Wales: Honorary Member CEP; Academic Council member Jersey International Centre for Advanced Studies; made MBE 2017 for services to Probation.
Su McConnel

Su McConnel
Is Vice-Chair of Napo, the Union and Professional Association for Probation staff. She has worked in Probation since 1986 in roles from Community Service Officer to Assistant Chief Officer in Bristol, Durham, Devon & Cornwall, and Wales. She is currently a Probation Officer on the frontline in Gwent.

Mike Maguire Mike Maguire
Is a Research Professor in Criminology at USW, having previously worked at Oxford and Cardiff Universities. He has researched and published widely in criminal justice field, including probation, prisons, prisoner resettlement, policing and victim support. He was one of the original editors of the Oxford Handbook of Criminology.
Ella Rabaiotti Ella Rabaiotti
Is a Lecturer in Criminology at Swansea University where she also undertakes research in probation, health and poverty, as well as community safety. A qualified Probation Officer, her previous roles include Assistant Chief Executive for Wales Community Rehabilitation Company, Wales Crimestoppers lead and Head of Wales Safer Communities Network.
Peter Raynor Peter Raynor
Was a Probation Officer in the 1970s, and since then has worked as an academic at Swansea University, where he is currently Emeritus Research Professor in Criminology. He was formerly in charge of social work and probation training, and has been involved for nearly fifty years in research on probation and criminal justice issues.
Kate Jazz Kate Willilams
Is research Professor of Criminology and Criminal Justice at the University of South Wales where she is the Director of the Centre for Criminology and Director of the Welsh Centre for Crime and Social Justice. She has experience of researching into and advising on matters important to policy and practice in both youth and adult justice.