löytölaki
Löytölaki is a Finnish term that translates to "finder's law" or "law of finding." It refers to the legal principles governing the possession and ownership of found property within Finland. These laws are primarily outlined in the Finnish Penal Code (Rikoslaki) and other relevant legislation.
When a person finds an item of value, they have a legal obligation to report the find.
The finder's rights are conditional on fulfilling these reporting obligations and cooperating with efforts to locate
Conversely, intentionally appropriating a found item without attempting to find the owner or report it can