Deguisa & Anor v Lynn & Ors

The High Court of Australia considered an appeal concerning the interpretation of section 109 of the *Constitution* and its interaction with state legislation. The appellants, Deguisa and Anor, sought to challenge the validity of certain provisions of the *Legal Profession Uniform Law Application Act 2014* (NSW) and the *Legal Profession Uniform Regulations 2015* (NSW), arguing they were inconsistent with the *Legal Profession Uniform Law*. The respondents, Lynn & Ors, defended the validity of the state legislation.

The central legal issue before the High Court was whether the NSW Act and Regulations, by purporting to regulate aspects of legal practice that were also governed by the *Legal Profession Uniform Law*, were invalid by reason of inconsistency under section 109 of the *Constitution*. Specifically, the Court had to determine if the state legislation imposed additional or different requirements on legal practitioners than those stipulated by the Uniform Law, thereby creating an inconsistency.

The High Court reasoned that section 109 of the *Constitution* invalidates state laws that are inconsistent with a valid Commonwealth law. In this instance, the *Legal Profession Uniform Law* was enacted by New South Wales and Victoria, and its application in New South Wales was facilitated by the *Legal Profession Uniform Law Application Act 2014* (NSW). The Court found that the NSW Act and Regulations did not create an inconsistency because they were designed to give effect to the Uniform Law within New South Wales, rather than to impose separate or conflicting obligations. The Court emphasised that where a state law is enacted to implement a uniform law, and its provisions do not diverge from or contradict the uniform law, then no inconsistency arises. The appeal was dismissed.