Alaska Statutes Title 12. Code of Criminal Procedure § 12.36.045. When finder of property is considered the owner

(a) When a private individual obtains property of another that is lost, mislaid, or delivered to the individual by mistake, the individual delivers that property to a law enforcement agency, and the true owner of the property remains unknown for a period of one year or does not claim the property within one year, the individual delivering the property shall be considered the owner of the property under this chapter if possession of the property by the individual is otherwise legal. If, after the one-year period, the private individual who delivered the property to the law enforcement agency cannot be found or does not want the property, the property shall be disposed of by the agency as if the owner is unknown.

(b) This section does not apply to property that comes into the custody of a law enforcement agency of a municipality that has adopted an ordinance providing for the custody and disposition of property that meets the requirements specified in AS 12.36.030(c).