Architects Act 1967 (ACT)

The case before the court concerned a challenge to the constitutional validity of the Architects Act 1967, specifically the provision that amended the Architects Ordinance 1959-1966. The plaintiff, who was not named in the court's decision, argued that the amendment was beyond the legislative power of the Australian Capital Territory (ACT) as it was inconsistent with the Commonwealth's power over laws with respect to "trade and commerce". The court was required to determine whether the amendment was within the legislative powers of the ACT and if it was consistent with the Commonwealth's powers.

The court examined the scope of the ACT's legislative powers under section 9 of the Australian Capital Territory (Self-Government) Act 1988. It considered whether the amendment related to "trade and commerce" and if it could be characterised as a law with respect to that matter. The court held that the amendment was not beyond the legislative power of the ACT as it did not interfere with the freedom of interstate trade and commerce. It was a law with respect to the regulation of the architectural profession within the ACT, which was within the ACT's legislative powers. The court also found that the amendment was not inconsistent with the Commonwealth's power over laws with respect to "trade and commerce" as it did not impose a burden on interstate trade and commerce.

The court concluded that the amendment was within the legislative powers of the ACT and was not inconsistent with the Commonwealth's powers. Therefore, the amendment was valid and the plaintiff's challenge was unsuccessful. The court did not make any orders as the challenge was dismissed.