In his roles as an educator in higher education and a service provider in the private sector, Stephen has been a teacher, trainer, supervisor, and consultant for agencies and organizations around the world. His primary contributions are related to the implementation, and evaluation of practical procedures for the assessment and management of psychopathic personality disorder and violence risk. He has played a lead role in establishing the structured professional judgment approach to violence risk assessment and developing guidelines that are used by civil and forensic mental health, social service, victim serving, corrections, law enforcement, national security, legal, and human resources professionals. An important focus of his work has been fostering practices that respect and promote the human rights and well-being of justice-involved people who have mental health difficulties or who have experienced or perpetrated violence. Stephen is a founding member IAFMHS, and he has served the association as President as well as the Founding Co-Editor and then Editor of the International Journal of Forensic Mental Health.