State Government Insurance Commission v Trigwell

The State Government Insurance Commission (SGIC) appealed to the High Court of Australia against a decision of the Full Court of the Supreme Court of South Australia concerning the liability of a dog owner for injuries sustained by a pedestrian. The dispute arose from an incident where the respondent, Mrs. Trigwell, was injured when she tripped over a dog owned by the appellant's insured. The Supreme Court had found the dog owner liable in negligence.

The High Court was required to determine whether the owner of a domestic animal, such as a dog, owed a duty of care to persons who might be injured by that animal's actions, and if so, what the scope of that duty was. Specifically, the court considered whether the common law rule that an owner was only liable for damage caused by an animal if the animal had known dangerous propensities or if the owner was negligent in controlling the animal, still applied, or if a broader duty of care in negligence was applicable.

The High Court, by majority, held that the common law rule regarding liability for animals had been superseded by the general principles of negligence established in cases like *Donoghue v Stevenson*. The court reasoned that the owner of a domestic animal owes a duty of care to take reasonable steps to prevent foreseeable harm to others from the animal's actions. This duty extends to preventing the animal from causing injury through its ordinary behaviour, even if that behaviour is not inherently dangerous. The owner's knowledge of the animal's particular propensities was relevant to the question of foreseeability and the reasonableness of the steps taken to prevent harm, but not to the existence of the duty itself.

The appeal was dismissed, with the High Court affirming the decision of the Supreme Court of South Australia that the dog owner was liable in negligence for the injuries sustained by Mrs. Trigwell.