Jane L. Ireland, Chartered Psychologist, Forensic Psychologist, and Chartered Scientist, holds a professorial chair at the University of Central Lancashire and is Violence Treatment Lead within High Secure Services, Ashworth Hospital, Mersey Care NHS Trust. She is elected academy fellow of the Council of the Academy of Social Sciences and fellow of the International Society for Research on Aggression (ISRA). She regularly publishes in the area of aggression and leads the Ashworth Research Centre (ARC) within Mersey Care NHS Trust.

Carol A. Ireland, Consultant Chartered Psychologist, Forensic Psychologist, and Chartered Scientist, is Lead Trainer for the Life Minus Violence Harmful Sexual Behaviour Therapy, and Senior Research Lead at the Ashworth Research Centre. She also works at the University of Central Lancashire, where she is the Director of Studies for the MSc in Forensic Psychology. She also works at the Coastal Child and Adult Therapeutic Services (CCATS).

Philip Birch is a Senior Lecturer in Criminology in the Centre for Law and Justice at Charles Sturt University, Australia. Prior to entering academia Philip worked as a criminologist in the field, holding posts in the UK Prison Service as well as in the crime and disorder field, which involved managing a specialist crime unit. Philip is an honorary research fellow within the Forensic Centre, UCLan, UK, and a senior research associate at Ashworth Research Centre, Ashworth Hospital, UK.