Government Insurance Office of New South Wales v Healey (No 2)

The Government Insurance Office of New South Wales (GIO) appealed to the Court of Appeal of New South Wales against a decision of the District Court which had awarded damages to Mr. Healey for injuries sustained in a motor vehicle accident. The primary dispute concerned the assessment of damages, specifically the extent to which Mr. Healey's pre-existing conditions should be taken into account in calculating the compensation payable for his injuries.

The central legal issue before the Court of Appeal was whether the District Court judge had erred in law by failing to properly consider the impact of Mr. Healey's pre-existing degenerative spinal condition when assessing the damages for the injuries he sustained in the accident. The court was required to determine the correct approach to assessing damages where a plaintiff suffers an injury that exacerbates or is superimposed upon a pre-existing condition.

Kirby P, delivering the leading judgment, affirmed the principle that a defendant must take a plaintiff as they find them, including any pre-existing vulnerabilities. However, his Honour clarified that this principle does not mean a defendant is liable for the entirety of a plaintiff's suffering if only a portion of that suffering is attributable to the defendant's negligence. The court held that the District Court judge had erred by not adequately distinguishing between the aggravation of the pre-existing condition caused by the accident and the underlying degenerative condition itself. The correct approach required an apportionment of damages to reflect only the loss or damage caused by the defendant's wrongful act.

The Court of Appeal allowed the appeal, setting aside the original damages award and remitting the matter back to the District Court for re-assessment of damages in accordance with the principles articulated by the Court of Appeal.