Koch and Anor v Andrews and Ors

This matter came before the High Court of Australia on an application for special leave to appeal. The applicants, Trevor and Shylie Koch, sought leave to appeal a decision of the Full Court of the Supreme Court of South Australia. The respondents were Mark Andrews, and Glenda and David Ziersch, trading as DM and GM Ziersch. The third respondent, KJ Wapper, did not wish to participate in the proceedings.

The central legal issue concerned the interpretation of sections 54(4b) and 54(5) of the *Workers Rehabilitation and Compensation Act* (SA). These sections deal with the rights and obligations between employers and third parties in relation to the reimbursement of workers' compensation payments and the question of contribution or indemnity. Specifically, the dispute revolved around the meaning of the phrase "person other than the employer" as it appears in both subsections. The Full Court had interpreted this phrase to mean that both subsections applied when an action was brought against both a wrongdoer and an employer, not solely against a wrongdoer.

The applicants argued that this interpretation by the Full Court was contrary to the long-standing judicial interpretation of similar phrases in workers' compensation legislation, both in the United Kingdom and across Australian states, including South Australia. They contended that the phrase "person other than the employer" had consistently been understood to refer only to situations where a wrongdoer, distinct from the employer, was being sued. The applicants submitted that the case was of significant public importance due to the widespread use of similar wording in other legislation and the potential impact of the Full Court's interpretation.