This document represents the consensus of a number of eminent psychiatrists in the field of correctional psychiatry. It sets out the history of correctional psychiatry, and many of the important principles related to the delivery of psychiatric services to correctional facilities in an easily digestible format. This working paper is a thorough, well written review, which should be read by every mental health practitioner working in corrections. Graham D. Glancy, M.B., Ch.B., F.R. C.Psych., F.R.C.P.(C), Founder Forensic Psychiatry, Royal College of Physicians and Surgeons (C), Assistant Professor Department of Psychiatry University of Toronto Providing psychiatric services in correctional settings brings a range of clinical, professional, ethical, legal and organisational challenges to those who assume this noble task. Clinically adept and concise, yet wide ranging in scope, this excellent text provides a foundational framework for all psychiatrists who work within the walls of lock-ups, jails, and prisons. Trestman and colleagues have given us an essential guide, long overdue, that serves also as a call to action for greater engagement in the treatment of this marginalised population. Johann Brink, M.B.Ch.B., B.A. Hons., F.C.Psych.(S.A.), F.R.C.P.C., Clinical Professor and Head, Division of Forensic Psychiatry, University of British Columbia, Vancouver, British Columbia Similar to previous editions, this third edition of the APA's Psychiatric Services in Correctional Facilities provides invaluable guidelines to correctional psychologist in their provision of mental health care. Particularly important is the contribution regarding non-suicidal self-injury and its distinction from suicidal behavior, as well as advocating that psychiatrists take a more "active role" and collaborating with custody personnel in addressing this challenging behavior. There is also an increased focus on the use of segregation for inmates with serious mental illness, as well as use of seclusion and restraint, and the advent of telepsychiatry. While discussion of these issues can be found elsewhere, their inclusion in this text is particularly important. Lindsay M. Hayes, Project Director, National Center on Institutions & Alternatives This work group report underscores the realities, opportunities, and challenges encountered over the years and currently by psychiatrists and other mental health professionals practicing in correctional settings as the real numbers and overall percentages of prisoners who have serious mental illness, transient adjustment states, and co-occurring substance use, intellectual disabilities, and/or other medical conditions have continued to increase. This extraordinary work group, comprising highly skilled psychiatrists with extensive correctional and forensic experiences, has greatly expanded the knowledge base since the second edition published 15 years ago. The report is a comprehensive and essential roadmap that is a necessity for all psychiatrists who practice or anticipate practicing in correctional settings. This roadmap includes principles, guidelines and special applications detailed in the report that are excellent and have great utility and relevance for psychiatrists and other mental health professionals newly entering these settings as well as seasoned veterans who have, by necessity, become an integral component for the management and provision of clinical services in correctional facilities and community corrections. Raymond F. Patterson, M.D., D.L.F.A.P.A., Associate Professor of Psychiatry, Howard University College of Medicine, Associate Professor of Psychiatry, Georgetown University This work group report underscores the realities, opportunities, and challenges encountered over the years and currently by psychiatrists and other mental health professionals practicing in correctional settings as the real numbers and overall percentages of prisoners who have serious mental illness, transient adjustment states, and co-occurring substance use, intellectual disabilities, and/or other medical conditions have continued to increase. This extraordinary work group, comprising highly skilled psychiatrists with extensive correctional and forensic experiences, has greatly expanded the knowledge base since the second edition published 15 years ago. The report is a comprehensive and essential roadmap that is a necessity for all psychiatrists who practice or anticipate practicing in correctional settings. This roadmap includes principles, guidelines and special applications detailed in the report that are excellent and have great utility and relevance for psychiatrists and other mental health professionals newly entering these settings as well as seasoned veterans who have, by necessity, become an integral component for the management and provision of clinical services in correctional facilities and community corrections. Raymond F. Patterson, M.D., D.L.F.A.P.A., Associate Professor of Psychiatry, Howard University College of Medicine, Associate Professor of Psychiatry, Georgetown University