Idaho Maximum Security Institution (IMSI) is a maximum-security prison located near

Kuna, Idaho Kuna ( ) is a city in Ada County, Idaho. It is part of the Boise metropolitan area. The population was 24,011 at the time of the 2020 census. Kuna is one of the fastest-growing areas in Idaho, having nearly tripled in population between 2000 a ...

, one of a cluster of seven detention facilities known as the "South Boise Prison Complex". The other prisons in the area are the Correctional Alternative Placement Program, the Idaho State Correctional Center, the Idaho State Correctional Institution, the South Boise Women's Correctional Center, the South Idaho Correctional Institution, and the South Idaho Correctional Institution-Community Work Center. IMSI houses Idaho's death row for men and

execution chamber An execution chamber, or death chamber, is a room or chamber in which capital punishment is carried out. Execution chambers are almost always inside the walls of a maximum-security prison, although not always at the same prison where the death r ...

. The IMSI prison was opened in November 1989 to confine Idaho's most violent offenders. The compound is located within a double perimeter fence reinforced with razor wire, an electronic detection system and a 24-hour armed perimeter patrol. The offender population includes many mental health offenders, including subjects of civil commitments. Thirty beds are dedicated for prisoners with acute mental illness. IMSI has restrictive housing beds dedicated to administrative segregation, disciplinary detention and death row. The remaining beds are allocated for close-custody general population offenders.

Notable prisoners

* Curtis Allgier * Thomas Eugene Creech * Paul Ezra Rhoades (executed in 2011) * Keith Wells (executed in 1994) * James Edward Wood (died in 2004)

References

Prisons in Idaho Buildings and structures in Ada County, Idaho Capital punishment in Idaho Execution sites in the United States 1989 establishments in Idaho {{Idaho-stub