WorkCover Authority of NSW v Walsh

The WorkCover Authority of NSW appealed a decision of the primary judge concerning a workers' compensation claim. The dispute centred on whether the death of a truck driver, the deceased, arose out of or in the course of his employment, whether his death was caused by an intentional self-inflicted injury, and whether his employment was a substantial contributing factor to his injury. The primary judge had found in favour of the applicants on all these issues.

The court was required to determine three principal legal issues. Firstly, whether the deceased's ingestion of amphetamines constituted an injury arising out of or in the course of his employment. Secondly, whether this ingestion amounted to an "intentional self-inflicted injury" as defined by section 14(3) of the *Workers' Compensation Act 1987* (NSW). Thirdly, whether the deceased's employment was a substantial contributing factor to his injury, pursuant to section 9A(1) of the Act.

The court reasoned that the ingestion of amphetamines did not take the deceased outside the course of his employment. Even if it did, section 14(2) of the Act would still entitle his dependants to compensation. Regarding the self-inflicted injury issue, the court upheld the primary judge's finding that there was no evidence the deceased intended to inflict injury upon himself by ingesting the amphetamines. The court distinguished the ingestion of the drug from the resulting cardiac arrhythmia, holding that the relevant injury for the purpose of section 14(3) was the cardiac arrhythmia, which was not intentionally self-inflicted. The court also considered the definition of "injury" under section 4 of the Act, referencing previous case law regarding personal injury and disease injury.

The appeal was dismissed, and the WorkCover Authority of NSW was ordered to pay the costs of the proceedings.