People in prison who have a mental illness, in comparison to the general population, tend to have longer criminal histories involving violent offenses and are more likely to have been using drugs or alcohol when they committed their crime. ^[1]   They are also more likely to have histories of homelessness and sexual and physical abuse. ^[2]   Thus, meeting the needs of people in prison or jail who have a mental illness often involves treating the various issues with which they may be dealing, such as a history of physical and sexual abuse, often perpetrated by family members or intimate partners; addiction to alcohol and/or drugs; and homelessness; as well as the problems every individual re-entering society after incarceration must face. To promote public safety and increase the likelihood of successful re-entry for inmates with mental illness, it is important to ensure that these individuals continue to receive treatment and that their treatment services are coordinated and tailored to their needs on an individual basis. ^[3]