This document provides an overview of a training on crisis intervention teams (CIT) and working with inmates with mental illness. It discusses the high prevalence of mental illness among jail and prison populations. It then reviews the history of deinstitutionalization and the inverse relationship between psychiatric beds and prison populations. The training teaches officers about signs and symptoms of mental illness, de-escalation techniques, and connects them to local mental health resources to help divert people in crisis from the criminal justice system.