Dr Michael Van Thanh Quach v MLC Life Limited (No 4)

Dr Michael Van Thanh Quach sought to set aside various subpoenas issued by MLC Life Limited. The dispute was heard by the Federal Court of Australia. The primary issue before the Court was whether Dr Quach had established any grounds to challenge the validity of the subpoenas issued by MLC Life Limited. The Court was required to determine if the subpoenas were validly issued and if they sought material that was adjectivally relevant to the case. Additionally, the Court had to consider Dr Quach's arguments regarding the legal advice provided to MLC Life Limited and its impact on the issuance of the subpoenas.

The Court found that Dr Quach had not demonstrated any valid grounds to challenge the subpoenas. The material sought by the subpoenas was considered to have sufficient adjectival relevance to the case, particularly concerning Dr Quach's medical condition and his ability to work. The Court rejected Dr Quach's assertion that the legal advice provided to MLC Life Limited required them to accept liability for his claim for total disability. The advice was deemed to be tentative and did not bind MLC Life Limited. Furthermore, the principle from Mason J's judgment in Minister for Aboriginal Affairs v Peko-Wallsend Ltd was found not to be applicable in this private law case. The Court concluded that the subpoenas were validly issued and that Dr Quach had failed to establish any valid grounds for setting them aside.

The interlocutory applications filed by Dr Quach on 17 January 2020 and 28 January 2020 were dismissed. Dr Quach was ordered to pay the costs of and incidental to both interlocutory applications, as agreed or taxed. The Court emphasised that the subpoenas were validly issued, and Dr Quach's challenges to their validity were unfounded. The decision underscored the importance of adjectival relevance in determining the validity of subpoenas in private law cases.