Life imprisonment in Norway

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The sentence of life imprisonment under Norwegian law is restricted to the military penal code (e.g. for aiding the enemy during a time of war). In the civilian penal code, a law passed in 2002 allows for an indeterminate penalty that could, in theory, result in life imprisonment. The first Norwegian prisoner ever sentenced to the 21 years' preventive detention (Norwegian: 21 års forvaring) was Viggo Kristiansen, who was convicted of murder and rape, but exonerated in 2022.