Mason and Cox Pty Ltd v McCann

Mason and Cox Pty Ltd (the appellant) appealed to the High Court of Australia against a decision of the Full Court of the Supreme Court of South Australia, which had affirmed a judgment in favour of the respondent, McCann. The dispute concerned the appellant's liability for damages arising from a motor vehicle accident in which the respondent was injured. The respondent had been a passenger in a vehicle driven by an employee of the appellant.

The High Court was required to determine whether the appellant was vicariously liable for the negligence of its employee. Specifically, the court considered whether the employee was acting within the scope of their employment at the time of the accident, notwithstanding that the vehicle was being driven on a road and not on the employer's premises. The central question was whether the employee's act of driving the vehicle, which led to the accident, was sufficiently connected to their employment to establish vicarious liability.

The court reasoned that the scope of employment is not confined to acts expressly authorised or necessarily incidental to the employment. Instead, it extends to acts which are reasonably incidental to the employment, meaning those acts which the employee is employed to do or which are reasonably within the scope of the employer's business. In this instance, the employee was travelling to a work site in a vehicle provided by the employer, and the journey was a necessary part of performing their duties. Therefore, the court found that the employee's negligent driving occurred within the scope of their employment, and the appellant was vicariously liable.

The appeal was dismissed.