I don't think this would be the case. The government seized "X SEK" of BTC. The government auctioned those BTC off at the end, like they would anything else, an

I don't think this would be the case. The government seized "X SEK" of BTC. The government auctioned those BTC off at the end, like they would anything else, and there was BTC left over after that, I don't think there should be any reason why it shouldn't be returned to the proper owner after that. This wasn't part of a fine, rather, they simply took the BTC as part of the drug money, so it's not like the government could argue that if it lost value they should be owed the remainder.