Gemma Hamilton is a lecturer in criminology and justice studies in Melbourne, Australia. Her research focuses on violence against women and children, with expertise in family violence, sexual offending, policing, and investigative interviewing.

Patrick Tidmarsh is a criminologist and forensic interview advisor, who has worked in the field of sexual offender treatment, with both adults and adolescents who sexually offend, for 20 years. He took the knowledge gained from that work into policing, developing the Whole Story methodology of sexual crime investigation. He trains and lectures on understanding and investigating sexual crime, in Australia, and worldwide.