Vereyken Brothers Pty Ltd v Relf

The matter before the Industrial Relations Commission of New South Wales was an appeal by Vereyken Brothers Pty Ltd against an arbitrator's determination that they were liable to pay compensation to an employee, Mr. Relf, for an injury sustained in the course of employment. The injury in question was thoracic outlet syndrome, which Mr. Relf claimed developed as a result of the repetitive motions involved in his job. The dispute centred around the validity of the expert evidence presented by Mr. Relf's treating physicians and the weight to be given to the evidence on causation.

The legal issues that arose for the court's consideration included the weight and sufficiency of expert medical evidence, the standard of proof required to establish causation in occupational injury cases, and the application of the principles established in Makita (Australia) Pty Ltd v Sprowles. The court had to determine whether the Arbitrator's decision was correct in finding that the employer was liable for the injury, and whether the Arbitrator had appropriately balanced the medical evidence presented.

In considering the appeal, the court found that the Arbitrator had given due consideration to the weight of the expert evidence and had not erred in finding that the employer was liable for the injury. The court confirmed that the Arbitrator had properly applied the principles from Makita, noting that while the evidence did not establish causation on the balance of probabilities, the employer could still be liable if the evidence showed a material contribution to the injury. The court held that the Arbitrator's decision was reasonable and that the weight of the evidence supported a finding of employer liability. The appeal was dismissed, and the Arbitrator's determination was confirmed. The court also ordered that the employer pay the employee's costs of the appeal.