Res nullius

Res nullius is a doctrine. The expression "res nullius" (lit: nobody's thing) is a Latin term derived from private Roman law whereby res (an object in the legal sense, anything that can be owned, even a slave, but not a subject in law such as a citizen, nor land) is not yet the object of rights of any specific subject. Such items are considered ownerless property and are free to be acquired by means of occupatio. Its use as a legal concept continues in modern civilian legal systems.

Examples of res nullius in the socio-economic sphere are wild animals (ferae naturae) or abandoned property (res derelictae). Finding can also be a means of occupation (i.e. vesting ownership), since a thing completely lost or abandoned is res nullius, and therefore belonged to the first taker. Specific legislation may be made, e.g. for beachcombing.

Scope

Wild animals

In common law legal systems, forest laws, and game laws have specified which animals are res nullius and when they become someone's property. Wild animals are regarded as res nullius, and as not being the subject of private property until reduced into possession by being killed or captured (see, e.g. Pierson v. Post):

A bird in the hand is owned; a bird in the bush is not.

Even bees do not become property until hived. An exception in the United Kingdom is the mute swan: The U.K. Monarch retains the right to assert ownership of unmarked mute swans, which he currently does on stretches of the Thames and its tributaries.

Likewise in common law systems, abandoned things are generally the property of the owner of the land in which they are found. Exceptions include treasure trove, for which specific law applies, generally making it Crown property; and some types of shipwreck:

Modern public international law

A concept derived from res nullius by allegory is terra nullius. Using it, a state may assert control of an unclaimed territory by occupying it.

This terra nullius principle was used to justify colonization of much of the world, as exemplified in the competition for influence within Africa by the European powers (see the scramble for Africa). The concept was applied even where there were indigenous peoples residing in what Europeans considered newly discovered land, as in Australia.


This page was last updated at 2022-11-17 13:22 UTC. Update now. View original page.

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