Adverse possession (often colloquially referred to as 'squatters’ rights') was until 2003 a common law doctrine that enabled a person who had been in factual possession of land owned by another for a specified period of time (12 years, with certain longer periods required for particular circumstances, e.g. Crown land), with an intention to possess (often deduced from the acts making up factual possession), without the consent of the owner: see, generally, J A Pye (Oxford) Ltd v Graham. In such circumstances, the owner was barred from obtaining possession of the land, and ownership passed to the trespasser. However there will be relatively few cases in which court proceedings relating to adverse possession will arise. These will be cases where it is contended that adverse possession entitling the possessor to registration as the proprietor of the land occurred prior