Workcover Authority of NSW v ICI Operations Pty Ltd & Anor

The Workcover Authority of NSW (the Authority) appealed to the High Court of Australia against a decision of the Supreme Court of New South Wales, which had overturned a conviction against ICI Operations Pty Ltd (ICI) and its then-manager, Mr. John William Smith. The Authority had prosecuted ICI and Mr. Smith under the *Occupational Health and Safety Act 1983* (NSW) for failing to comply with their duty of care to ensure, so far as was reasonably practicable, the health and safety of their employees. The specific incident involved an explosion at an ICI facility that resulted in the death of an employee.

The central legal issue before the High Court was whether the Supreme Court had erred in quashing the convictions. This required the High Court to consider the proper interpretation of the duty of care provisions under the *Occupational Health and Safety Act 1983* (NSW), particularly the concept of "reasonably practicable," and to determine whether the evidence presented at trial was sufficient to establish a breach of that duty by ICI and Mr. Smith, notwithstanding the Supreme Court's finding that the prosecution had failed to prove causation.

The High Court, comprising Gleeson CJ and Heydon J, allowed the appeal. Their Honours found that the Supreme Court had misconstrued the relevant provisions of the Act. They held that the prosecution was not required to prove that the specific breach of duty caused the death of the employee; rather, it was sufficient to prove that the failure to take reasonably practicable steps created a risk of death or serious injury. The Court reasoned that the duty imposed by the Act was to ensure health and safety, and a failure to do so by not taking reasonably practicable steps constituted an offence, irrespective of whether that specific failure directly led to the fatality. The Supreme Court's focus on the direct causation of death was therefore deemed to be an error.

Consequently, the High Court set aside the orders of the Supreme Court of New South Wales and reinstated the convictions of ICI Operations Pty Ltd and Mr. John William Smith.