Northern Sandblasting Pty Ltd v Harris

Northern Sandblasting Pty Ltd (the appellant) appealed to the High Court of Australia from a decision of the Supreme Court of South Australia, which had awarded damages to Mr. Harris (the respondent) for personal injuries sustained in a workplace accident. The dispute concerned the appellant's liability for the injuries suffered by the respondent, who was an employee of a subcontractor engaged by the appellant.

The central legal issue before the High Court was whether the appellant owed a duty of care to the respondent, an employee of a subcontractor, in relation to the safety of the worksite. Specifically, the court had to determine if the appellant, as the principal contractor, had a non-delegable duty to ensure the safety of the respondent, or if its duty was limited to taking reasonable steps to prevent foreseeable risks arising from its own activities or control over the worksite.

The High Court, in a majority decision, held that the appellant did owe a duty of care to the respondent. The court reasoned that a principal contractor retains a degree of control over the worksite and the activities conducted thereon, which can give rise to a duty to take reasonable steps to prevent foreseeable harm to those working on the site, including employees of subcontractors. This duty is not necessarily non-delegable in the strict sense of vicarious liability for the subcontractor's negligence, but rather a direct duty arising from the principal contractor's control and responsibility for the overall safety of the site. The court applied principles of negligence, focusing on the foreseeability of harm and the extent of the principal contractor's control and knowledge of the risks.

The appeal was dismissed, with the High Court affirming the decision of the Supreme Court of South Australia.