Rehabilitating Sexual Offenders: A Strength-Based Approach
William L. Marshall, OC, FRSC, PhD,Director of Rockwood Psychological Services which provides assessment and treatment for sexual offenders in Canadian federal prisons and for juvenile offenders in the community.  He is also Director of Groups and Evaluations at a centre for mentally disordered offenders.  Bill has over 370 publications including 19 books.  He has been on (or still is on) the editorial boards of 16 journals.  In 2000 Bill was elected a Fellow of the Royal Society of Canada and in 2006 he was appointed an Officer of the Order of Canada.Liam E. Marshall, PhD,has been conducting research on and treating sexual offenders for more than 14 years.  He has delivered trainings for correctional services and those who work with sexual and violent offenders in 14 countries.  Liam has numerous publications including a co-edited, and two co-authored books.  He is on the editorial board of the journalsSexual AggressionandSexual Addiction and Compulsivity.  Liam contributed to the development of the preparatory, regular, maintenance, deniers, and low-functioning sexual offender treatment programs, and occasionally acts as a therapist for these programs.  He has also designed anger management and domestic violence programs for mentally disordered offenders.  He is currently the Research Director for Rockwood Psychological Services, and Evaluation Chairman and Co-Director of treatment programs at a secure treatment unit for incarcerated mentally disordered offenders.Geris A. Serran, PhD,graduated with a doctoral degree in Clinical Psychology from the University of Ottawa in 2003.  A registered psychologist, Geris is currently employed at Rockwood Psychological Services as the Clinical Director of the Sexual Offender Treatment Programs at Bath Institution (a medium security federal penitentiary) and she also conducts assessments interventions with juvenile sexual offenders.  Geris' research interests include therapeutic processes, coping strategies, maladaptive schemas, and treatment of sexual offenders.  She has authored several book chapters and journal articles, co-edited and co-authored books, and presented at international conferences.  Geris is also on the Editorial Board for the journal,Sexual Aggression.Matt D. O'Brien, MA, MSc,graduated with a Master's degree in Applied Criminological Psychology from the University of London in 1997.  Matt worked in the delivery and design of offending behavior programs, primarily with sexual offenders in Her Majesty's Prison Service for 10 years.  He is currently employed at Rockwood Psychological Services as a therapist for the Preparatory, Deniers and Maintenance programs for sexual offenders in Canadian Federal Correctional settings as well as with juvenile sexual offenders in community settings.  Matt has authored a number of book chapters and journal articles, presented at international conferences, and trained and consulted with staff in a number of different jurisdictions.