Glenda C. Liell is a Forensic Psychologist with 24 years' experience in roles across criminal justice including high security prisons, regional psychology, headquarters, and probation. She is the current Chair of the BPS Committee on Test Standards and has represented the Division of Forensic Psychology on other BPS Committees. She has also guest lectured at various universities.

Martin J. Fisher is a Forensic Psychologist and has worked in the criminal justice field for over 33 years in England and Wales. He has honorary appointments within NHS Secure Services and Academia. He is also a past Chair of the BPS Committee on Test Standards, past member of the BPS Ethics Committee, and a member of the BPS Research Board.

Lawrence F. Jones, a Consultant Clinical and Forensic Psychologist, is the head of the psychology services at Rampton high secure hospital. He is an honorary clinical associate professor at Nottingham University and is a former chair of the Division of Forensic psychology. He has authored work on trauma, case formulation, and pragmatic risk assessment.