The study explores how indigenous communities in the Western Seram Islands determine ownership rights to their customary land. By examining the legal system and practices in Taniwel Timur, Negeri Maloang, and Negeri Sohuwe, the researchers found that ownership rights granted by the head of the community hold legal weight as long as they align with customary norms. These rights have been passed down through generations, emphasizing the importance of recognizing and respecting the land rights of indigenous communities in the region.