Onesteel Reinforcing Pty Ltd v Sutton

This matter concerned an appeal to the Court of Appeal of New South Wales from a decision of a Presidential Member of the Workers Compensation Commission. The appeal arose from a decision by an arbitrator concerning a claim for workers' compensation made by the respondent, Mr Sutton, against the appellant, Onesteel Reinforcing Pty Ltd. The core of the dispute involved whether Mr Sutton had sustained an injury while working for Onesteel, particularly in circumstances where the injury might have occurred at two different workplaces.

The legal issues before the Court of Appeal included whether the arbitrator erred in law by making a finding that the respondent was injured while working for the appellant without sufficient evidence, and whether the arbitrator had answered the wrong question given the possibility of injury occurring at two distinct workplaces. Further, the court considered the application of section 354 of the *Workplace Injury Management and Workers Compensation Act 1998*, which stipulates that procedures before the Commission are not governed by the strict rules of evidence, and whether the arbitrator was entitled to rely on expert reports when the respondent's credit had been impugned and his medical history provided to the experts differed from the evidence accepted by the arbitrator. The court also examined the Workers Compensation Commission Rules regarding the nature of evidence required, specifically that it must be logical, probative, relevant, and not based on speculation or unsubstantiated assumptions, and whether these rules were intended to reintroduce the formal rules of evidence.

The Court of Appeal reasoned that while section 354 of the Act and the Commission Rules permit a less formal approach to evidence than traditional court proceedings, the evidence relied upon must still be satisfactory in a probative sense. The court found that the arbitrator was entitled to draw conclusions from the material before him, including expert reports, even if the respondent's credit was challenged or his account to experts differed from other evidence. The key was that the evidence, when considered logically and probatively, supported the arbitrator's findings. The court affirmed that the Commission Rules did not operate to reintroduce the formal exclusionary rules of evidence but rather set standards for the quality and relevance of the evidence to be considered.

The appeal was dismissed with costs. The court also ordered that the name of the appellant be amended to Onesteel Reinforcing Pty Ltd.