Dr. Geoffrey Twitchell is a licensed (CA Board of Psychology, 1999) forensic clinical psychologist with training and treatment expertise in the cross-section of criminal behavior, addiction, and severe mental illness. He recently served as Forensic Behavioral Health Manager for Sacramento County and Treatment Director for San Diego County Probation.  In these roles, Dr. Twitchell functioned as liaison to county justice partners including Sheriff’s Department, Public Defender, District Attorney’s Office, Superior Court and Behavioral Health Services. Dr. Twitchell led the development of a training curriculum specifically designed for clinicians to enhance their ability to work with complex justice involved individuals, and address both criminogenic as well as traditional clinical issues such as substance use and mental illness that are often present. Published evaluation results of this six-day learning academy demonstrated significant improvement in provider skills, willingness, and motivation to work collaboratively with criminal justice partners. As a clinician who understands the unique philosophies and languages of both criminal justice and behavioral health professions, a priority training focus is on bridging public safety and behavioral health cultures for optimal client outcomes in the areas of recidivism reduction, substance use and mental illness through collaborative case planning. Training incorporates the Interprofessional Collaborative Practice model and competencies. Dr. Twitchell holds a clinical faculty appointment at the University of California San Diego, Department of Psychiatry. He received his Bachelor’s from the University of Washington, his doctorate from Michigan State University and a Postdoctoral Fellowship at UCLA Integrated Substance Abuse Programs.