Background: The purpose of psychiatric forensic care is to provide treatment for mentally ill offenders and to prevent future acts of violence and other adverse events. During care, the type of restrictions of freedom, the patient's continuous need for involuntary treatment and readiness for discharge, are continuously evaluated based on the assessment of risk the patient pose to themselves and others as well as the progress achieved with treatment. The use of structured risk assessment instruments is recommended in clinical guidelines to assess such risks. However, unstructured clinical assessments, considered to be less valid, are often used in clinical practice. There is insufficient research evidence concerning several aspects related to the clinical use of structured risk assessment instruments in terms of guiding the planning and realization of care and risk management interventions. There is also a lack of knowledge about what patients themselves perceive to be mediating factors for their use of violence. The challenges of using structured risk assessment instruments 8 al care givers. Patients are often actively striving and struggling to understand and manage their own risk of acting out in violence. Real-life experiences in forensic psychiatric care sparked my interest in trying to understand more about the barriers and facilitators of the clinical use of structured risk assessments to prevent violence and other adverse events as well as the patient perspectives on factors that contribute to or inhibit violence. This PhD thesis is the product of this endeavour. NICE, 2007; Risk Management Authority, 2006). SRAIs have been developed for and implemented and used in forensic mental health services, secure psychiatric in-care services and correctional services to assess the risk of adverse events. Much of the research of risk assessment instruments comes from these different types of services.