USA usually sells decommissioned BTC through auction such as this one:
https://www.usmarshals.gov/assets/2020/febbitcoinauction/ (we’ll see how the proceed with the 69k BTC they’ve recently got their hands on from Silk Road, via Individual X).
Reading though a couple of articles on the matter, it seems that Finland does not have much of a track with these type of situations. The nearly 2K BTCs were decommissioned in 2016, after busting a darknet drug marketplace, alongside a few other similar drug related busts.
The authorities were set to sell the BTCs in 2018, but refrained, being afraid that the BTCs would end up in criminal hands again (really …). They even pondered destroying them (presumably, by throwing the keys away), but withheld.
Come early 2021 ATH, concerns have withered, and an urge to convert them to fiat has suddenly surfaced, above all prior reserves. The things that ATHs can manage ...
See:
https://decrypt.co/53511/finnish-authorities-are-selling-76-million-in-seized-bitcoin
