Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.
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Step-by-step guidance using the Norway system — addresses, money services, visit booking, what to bring on your first visit.

From Wikimedia Commons (CC-BY-SA where not otherwise stated).
Ila prison and detention center (Norwegian: Ila fengsel og forvaringsanstalt) is a high security prison in Ila in Bærum municipality in Akershus county, outside the capital city of Oslo in Norway. It is the national preventive detention facility for men in Norway, i.e. the prison for men serving preventive detention (forvaring), Norway's maximum penalty. Ila generally houses the most dangerous criminals in Norway, who are convicted of violent and sexual crimes. Organisations within the facility Nasjonal forsterket fellesskapsavdeling (as of 2023).
Source: Wikipedia article lead, CC-BY-SA.
Capacity
—
Current population
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Occupancy
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Year opened
1951
Operational
Figures from official sources · verified 29 May 2026 · methodology
Operator
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Population held
Mixed/unknown
Opened
1951
Region
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Security level
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Death-row facility
No
No conditions summary available yet.
No visiting information available.
No mailing information available.
Contact the operator's website for inmate-specific procedures.
No major issues documented in our database.

Arne Treholt (13 December 1942 â 12 February 2023) was a Norwegian civil servant, diplomat and Labour Party politician who was convicted of spying for the Soviet Union and Iraq.
Erik Andersen (born 20 March 1952), also referred to in the media as The Pocket Man (in Norwegian "Lommemannen"), is a convicted Norwegian child molester from Bergen.

Fritz Yngvar Moen (17 December 1941 â 28 March 2005) was a Norwegian man wrongfully convicted of two distinct murders, serving a total of 18 years in prison.
The Baneheia murders (Norwegian: Baneheia-drapene) was a double rape and murder, and a miscarriage of justice, that occurred in Norway on 19 May 2000.
Source: Wikidata + Wikipedia.
Derived signal — not a judgement. How it's calculated
Same country, matched on type + security level where possible.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Ila Detention and Security Prison. Retrieved July 21, 2026, from https://worldprisons.com/prisons/ila-detention-and-security-prison
"Ila Detention and Security Prison." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/ila-detention-and-security-prison.
@misc{worldprisons-ila-detention-and-security-,
author = {{World Prisons}},
title = {Ila Detention and Security Prison},
year = {2026},
url = {https://worldprisons.com/prisons/ila-detention-and-security-prison},
urldate = {2026-07-21}
}