R. Karl Hanson, Ph.D. is one of the leading researchers in the field of sexual offender risk assessment and treatment. Dr. Hanson has published more than 100 articles, including several significant meta-analyses, and was co-developer of the most widely used risk assessment tool for sexual offenders, the Static- 99. He is a Fellow of the Canadian Psychological Association, and was the 2002 recipient of the Significant Achievement Award from the Association for the Treatment of Sexual Abusers (ATSA).

Dr. Andrew J. R. Harris, Ph.D. of the Forensic Assessment Unit, Gloucester, Ontario did his doctoral research on criminal psychopathy (Hare, 1991) and high levels of sexual deviance in a probation and parole sample.  Previously employed in both research and clinical capacities at the Oak Ridge (Maximum Security) Penetanguishene Mental Health Centre, and by the Correctional Service of Canada as a clinician at Workworth penitentiary. Dr. Harris speaks extensively on prison architecture, static and dynamic risk assessment, psychopathy, risk to re-offend among developmentally delayed offenders and high-risk violent offenders. 

Dr. Amy Phenix, Ph.D. is a clinical psychologist in private practice in California who specializes in both conducting and training staff on Sexually Violent Predator/Persons (SVP) evaluation methods. Dr. Phenix is licensed to practice in California, Washington and Florida. She is a certified Static-99 trainer and was a significant contributor to the Static-99 Coding Rules Revised, 2003. Her training expertise is focused on sex offender risk assessment, evaluating sexual offenders and issues in court testimony on sex offender cases. She has provided trainings for mental health clinicians, law enforcement including probation and parole officers and attorneys.

David Thornton, Ph.D. is also one of the leading researchers in the field of sexual offender risk assessment and treatment. Along with Dr. Hanson, he created the Static-99 and the Static-2002. With colleague Ruth Mann, Ph.D. he created the Risk Matrix 2000 assessment instrument and the Structured Risk Assessment framework for use in treatment planning. Both instruments are widely used in the UK. Current research activities focus on the understanding and measurement of treatment interfering factors and dynamic risk factors in higher risk offenders. He is a member of the British Psychological Society and the Association for the Treatment of Sexual Abusers (ATSA).

L. Maaike Helmus, Ph.D. L. Maaike Helmus is an Assistant Professor at Simon Fraser University. Her research has focused on offender risk assessment, particularly regarding risk scale development and validation, and risk assessment for subgroups such as sex offenders, domestic violence offenders, and Indigenous offenders. She is part of the development team for Static-99R, Static-2002R, BARR-2002R, STABLE-2007, ACUTE-2007, and the Risk of Administrative Segregation Tool (RAST), as well as being a certified trainer for Static-99R, Static-2002R, and the BARR-2002R. Winner of the prestigious Governor Generalís Gold Medal for her work in risk assessment, Dr. Helmus has been the recipient of numerous grants and awards from organizations including the Association for the Treatment of Sexual Abusers (ATSA) and the Social Sciences and Humanities Research Council of Canada.

Yolanda Fernandez, Ph.D. is the Regional Manager for Institutional Mental Health in the Ontario region of the Correctional Service of Canada (CSC). She is also a clinical psychology with Forensic Behaviour Services. Dr. Fernandez has extensive experience using Static-99R, STABLE-2007, and ACUTE-2007 in correctional settings (including supervising a team of risk evaluators) and is a co-author on the manual for these three scales.

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