Forensic Group Psychotherapy: The Portman Clinic Approach stands as a comprehensive account of theoretical and practical approaches to the group treatment of patients who present with problematic sexual behaviour, criminality, and violence. The first section of the book focusses upon key aspects of group analytic theory as applied to clinical work with forensic patients and describes how to provide a setting in which treatment can proceed. This is followed by a series of chapters with a clinical emphasis, providing a rich and evocative account of the challenges of working with forensic patients in groups. The guiding principle is the need to understand and work with the victim within the perpetrator. This book is a must for any clinician working with forensic patients in groups. Though based on the work of an outpatient clinic, there are ideas and techniques that can be applied to many other settings, including prison, probation, and inpatient.