1. As used in this act:
a. "Abandoned property" is property of which the owner has intentionally given up possession under circumstances evincing intent to give up ownership.
b. "Lost property" is property the possession of which has been parted with casually, involuntarily or unintentionally; or which has been mislaid, left or forgotten.
c. A "finder" is a person who acquires legal possession by exercising physical control over abandoned or lost property.