Property in its many forms, generally implies the right to use or enjoy, the right to exclude others and the right to alienate. I do not say all these rights must co-exist before there can be a proprietary interest, or deny that each of them maybe subject to qualifications

Blackburn J, Milirrpum v Nabalco (1971) FLR 141

Yanner v Eaton
as elsewhere in the law, 'property does not refer to a thing; it is a legal relationship with the thing

R v Toohey
A property right must be 'capable in its nature of assumption by third parties'

tangible property that can be possessed by a person

personal property that cannot be held in a persons hand - shares, IP