Polarnacht means kaamos in finnish and polar night aka darkness in english.
Also
polar cheese is good.
But seriously, Finland is a sparsely populated country and a lot of crimes are committed here in relation to the population.
I will mention the most interesting ones (to me, at least) that have received relatively little attention in Finnish criminal history.
This site does not seek to analyze crime any further, there are several better sources for it.
Think of this as a virtual milk carton notification of a missing child.
You will remember its existence exactly as long as you see it.
And if you don't know what I mean, shame. Oh, here's a
link