If in any statute any intention can be discovered that the council's control or occupation of the jetty shall or shall not carry with it a duty towards persons lawfully using it to take reasonable care by guarding, lighting or warning for their protection from such a danger as befell the plaintiff, that intention is of course decisive. But, though it is often said that the liability of a public authority in such a matter depends upon the intention of the statute, the truth is that in most cases the statute stops short after establishing the relation of the public authority to the structure or work with which it is concerned and goes no further than defining or describing the nature and degree of its control, authority or occupation, the function it is to perform and the powers it may exercise. It leaves to the general law the definition of the duty of care for the safety of the individual which flows from the position in relation to the structure or work in which it has placed the public authority. The conclusion that such a duty does or does not result and the measurement of the duty thus become matters of principle; and, however much reliance may be placed upon processes of interpretation, except in the rare case of an actual intention appearing on the face of the statute, to give any answer to the problem necessarily means that some general principle of liability is applied, or, what amounts to the same thing, that some presumption has been invoked in favour of a recognised head of liability.
Although his Honour said that "control and management spells occupation" [27] , he was unable to assimilate the duty of a statutory authority having control and management of premises to the duty owed by an occupier to any of the three distinct categories in which entrants were then placed - invitees, licensees and trespassers [28] . The power of management and control authorises a public authority to safeguard an entrant against dangers on the premises but it does not, or does not necessarily, empower the public authority to regulate entry by the public on to the premises. The public may be entitled to enter as of right. The power of management and control is thus to be distinguished from occupation as a source of liability. However, by treating the statutory powers of control and management as, or as the equivalent of, de facto occupation, Dixon J [29] was able to treat the duty of the public authority to an entrant as a duty arising under the general principle of Donoghue v Stevenson [30] .
1. Aiken (1939) 62 CLR 179 at 204
2. Aiken (1939) 62 CLR 179 at 203
3. Aiken (1939) 62 CLR 179 at 207
4. See Aiken (1939) 62 CLR 179 at 206
5. [1932] AC 562.