Anyone know what Norway will do when Breivik's 21 year prison sentence [0] is up in 10-12 years? Difficult to imagine him being released back into society.
[0] https://en.wikipedia.org/wiki/Trial_of_Anders_Behring_Breivi...
[0] https://en.wikipedia.org/wiki/Trial_of_Anders_Behring_Breivi...
While detention must be evaluated at given intervals, it can be extended indefinitely[2].
It doesn't mean that such prisoners are definitely released with 21 years - it can (and likely will) be extended indefinitely for as long as a prisoner remains dangerous to society:
> If the prisoner is still considered dangerous after serving the original sentence, the detention can be extended by five years at a time. Renewal of the detention every five years can in theory result in actual life imprisonment.
Now, in case as unique and clear-cut as that of Breivik, I would advocate for an extremely rare application of actual punishment-punishment - e.g., keeping him alive for as long as possible while torturing him.
As for three-strikes-society-removes-you, that's probably my favorite part of the justice system in the US.