J. STEPHEN WORMITH, PHD, was Professor in the Psychology Department at the University of Saskatchewan (U of S) and Director of the Centre of Forensic Behavioral Science and Justice Studies at U of S. He had consulted recently on correctional matters with governments of British Columbia, Saskatchewan, Ontario and Canada and served in court as an expert witness on matters of offender assessment and treatment. He was a Fellow of the Canadian Psychological Association.

LEAM A. CRAIG, PHD, is a Consultant Forensic Clinical Psychologist and Partner at Forensic Psychology Practice Ltd. He is a visiting Professor of Forensic Clinical Psychology, Birmingham City University and Hon. Professor of Forensic Psychology, University of Birmingham. He acts as an expert witness on the assessment and treatment of offenders and is Chair of the British Psychological Society Expert Witness Advisory Group. He is a Fellow of the British Psychological Society and of the Academy of Social Sciences.

TODD E. HOGUE, PHD, is Professor of Forensic Psychology at the University of Lincoln and a registered forensic and clinical psychologist who has worked in prison and secure healthcare settings mainly developing treatment services for personality disorder offenders and those who commit sexual offences.