Northern Territory of Australia v Collins & Anor

The High Court of Australia considered an appeal by the Northern Territory of Australia against a decision of the Supreme Court of the Northern Territory, which had awarded damages to Mr. Collins and his wife for injuries sustained by Mr. Collins. The dispute concerned the liability of the Northern Territory for the actions of a police officer who, while attempting to arrest Mr. Collins, discharged his firearm, causing serious injury.

The central legal issue before the High Court was whether the Northern Territory was vicariously liable for the conduct of the police officer. This required the Court to determine whether the officer's actions, in discharging his firearm, were so unconnected with his employment as a police officer that they fell outside the scope of his authority and thus did not render the employer vicariously liable. The Court also considered the application of the principles of vicarious liability in the context of police actions.

The High Court, by majority, held that the Northern Territory was not vicariously liable for the actions of the police officer. The majority reasoned that the officer's decision to discharge his firearm was an independent act, not authorised by his employment, and was not done in the course of, or for the purposes of, carrying out his duties as a police officer. The Court distinguished this conduct from situations where an employee's wrongful act is merely an unauthorised mode of doing an authorised act. The principles of vicarious liability, as established in cases such as *Bugge v Brown* and *New South Wales v Lepore*, were applied to conclude that the officer's actions were outside the scope of his employment.

The appeal was allowed, and the orders of the Supreme Court of the Northern Territory were set aside.