McColley v Commonwealth of Australia

McColley v Commonwealth of Australia involved the plaintiff, McColley, who sought damages from the Commonwealth of Australia for alleged negligence in the investigation of his criminal conduct. The Federal Court of Australia was tasked with determining whether the Commonwealth owed a duty of care to the plaintiff in the course of investigating his alleged criminal activities. The primary issue was whether the duty of investigation by the Commonwealth could coexist with a duty of care towards the individual being investigated, and if the plaintiff had disclosed a reasonable cause of action.

The court examined the essential elements required to establish a claim of negligence, particularly whether the Commonwealth owed a duty of care to the plaintiff during the investigation process. It was noted that the duty to investigate is inherently different from a duty of care, as the former involves an obligation to pursue justice and protect the public, whereas the latter imposes a responsibility to avoid causing harm. The court concluded that these duties were incompatible and could not be reconciled, thus the Commonwealth did not owe a duty of care to the plaintiff in the context of the investigation. Consequently, the plaintiff's Statement of Claim was found to disclose no reasonable cause of action.

In light of the determination that no reasonable cause of action was disclosed, the court ordered that the plaintiff's Statement of Claim be struck out. The court also directed that if the matter was not relisted within seven days for submissions on costs, the plaintiff would be liable to pay the defendant's costs of the proceedings as agreed or assessed. This ruling underscores the principle that a duty of investigation does not extend to a duty of care in the context of criminal investigations.