Nagle v Rottnest Island Authority

This case concerned an appeal to the High Court of Australia by Nagle against the Rottnest Island Authority. The dispute arose from injuries sustained by Nagle when diving into the water at a location managed by the Authority. The core of the disagreement revolved around whether the Authority owed a duty of care to Nagle and, if so, whether it had breached that duty.

The High Court was required to determine two principal legal issues. Firstly, whether the risk of injury to Nagle in diving as he did was reasonably foreseeable. Secondly, arising from the trial judge's findings, whether the Authority's failure to take appropriate steps to prevent the injury was causative of Nagle's harm. The Full Court had previously found against Nagle on the foreseeability issue, while the trial judge had found that the Authority had breached its duty of care.

The Court considered the basis upon which a duty of care arises, particularly in the context of public authorities and omissions. It was argued that the Authority had undertaken a duty of care by reason of the proximity of its relationship with Nagle and other bathers, distinguishing it from ordinary bathers who might also foresee the risk. The Court referenced decisions such as *Jaensch v Coffey* and *Gala v Preston* regarding the nature of duties and the circumstances in which they arise, and *Heyman v Mulgrave Shire Council* concerning the liability of public authorities for omissions. The Authority's conduct was seen as creating a basis for liability beyond that of a mere bystander.