Possession 

Possession is a legal concept in its own right, not merely evidence of ownership. Much of property law protects possession itself, independently of who ultimately has the best title, and a large share of property disputes are in truth disputes about which of two non-owners has the better possessory claim.

Possession is distinct from ownership

Ownership is the ultimate bundle of rights a legal system recognises in a thing. Possession is a factual and legal state of control over a thing, which may or may not coincide with ownership. A thief has possession without ownership; an owner who has lent an item to a friend retains ownership but has given up possession; a bailee has possession without ownership. The law protects possession as such, because a stable system of property depends on people being able to rely on the position of things as they find them, not on having to trace ownership back to its origin every time a dispute arises.

The elements of possession

Possession has two elements, both of which must be present.

Factual control requires a degree of physical custody or control over the thing, proportionate to its nature — a person need not have a hand permanently on an item to possess it, but must have the practical ability to deal with it and exclude others.

Intention to possess (sometimes described as an intention to control or exclude) requires that the possessor intend to hold the thing for themselves, excluding others, rather than merely having incidental or unwitting custody of it. An employee handling an employer's goods, or a person who has not noticed an object under their own control, may lack the requisite intention even though they have physical proximity to the thing.

Both elements are questions of fact and degree, and the required intensity of control varies with the nature of the property — control over land differs from control over a portable chattel, and control over a locked container differs from control over its contents.

Relativity of title

Australian property law does not require a claimant to prove absolute ownership to succeed in an action for interference with a chattel or trespass to land. Instead, title is relative: whoever can show the better right as between themselves and the defendant succeeds, even if a third party (perhaps unidentified, perhaps not before the court) might have a better right still. A prior possessor therefore prevails against a later possessor who cannot show a superior right, even though neither may be the true owner. This is what makes possession independently valuable and independently litigated: a possessor need only defeat the specific defendant, not the entire world.

This principle also explains why a wrongdoer who takes property from a thief cannot resist an action by the thief for its return — the thief's prior possession is a better right than the second wrongdoer's, even though the thief is not the true owner and could not resist an action by the true owner.

Finders' rights

A finder of a lost or abandoned chattel acquires a possessory title good against everyone except a person with a prior and better right — typically the true owner, but also anyone who had possession before the finder (such as a previous finder or a bailee) — the rule from Armory v Delamirie (1722) 1 Str 505.¹

Where the item is found on or in land or premises occupied by someone else, the finder's rights compete with the occupier's rights. Generally, an occupier who exercises a manifest intention to control everything on the premises (and their contents) has a claim superior to the finder's, particularly where the item was found attached to or embedded in the land or building rather than merely lying on its surface, or where the premises were not open to the public. Where the occupier has not manifested such control — for example, publicly accessible premises where lost property is not routinely collected — the finder's claim is more likely to prevail over the occupier's, though it remains subject to the true owner's superior right.

Applying this in a problem question

1. Identify who currently has factual control of the item and whether they intended to exclude others from it.
2. Ask whether the dispute requires proof of absolute ownership, or only a better right than the specific defendant — remember that relativity of title usually makes the latter sufficient.
3. If the facts involve a found item, identify whether the claimant is the finder or the occupier of the premises where it was found, and assess the occupier's manifested degree of control over the premises and its contents.
4. Rank the competing claims in order of priority, remembering that a true owner (if before the court, or clearly identifiable) defeats every possessory claim.
5. State the remedy sought — return of the chattel, damages for its value, or damages for interference — and confirm it follows from the possessory right established.