According to common law, any ship drifting or drifted ashore was regarded as a property owned by a local feudal lord or the local people or as a common property of the region, but its ownership often triggered conflicts among the people.
慣習法では地元領主あるいは住民の所有物もしくは地域の共有物とされてきたが、しばしば権利を巡る争いを引き起こした。