My understanding is that they&#x27;ll generally keep you if the experts have good reason to believe you&#x27;re still a threat to other people, otherwise you get pardoned at some point.<p>There aren&#x27;t very many of these sentences, I think you can find the complete list here in the Danish article on Wikipedia:<p><a href="https:&#x2F;&#x2F;da.wikipedia.org&#x2F;wiki&#x2F;Livsvarigt_f%C3%A6ngsel" rel="nofollow">https:&#x2F;&#x2F;da.wikipedia.org&#x2F;wiki&#x2F;Livsvarigt_f%C3%A6ngsel</a><p>About 50 since 1971.