Grannall v Marrickville Margarine Pty Ltd

The case of *Grannall v Marrickville Margarine Pty Ltd* concerned a prosecution against Marrickville Margarine Pty Ltd for manufacturing table margarine without a licence, contrary to section 22A(1)(b) of the *Dairy Industry Act 1915-1951* (NSW). The company argued that this provision, which required a licence and imposed quantity limitations on table margarine manufacture, infringed section 92 of the Australian Constitution, which guarantees freedom of inter-State trade, commerce, and intercourse. The matter was removed to the High Court of Australia.

The central legal issue before the High Court was whether section 22A(1)(b) of the New South Wales Act, by regulating the manufacture of table margarine, constituted an impermissible burden on inter-State trade and commerce, thereby contravening section 92 of the Constitution. The court was required to determine if the legislative restrictions on production, even if primarily aimed at protecting the dairy industry from competition, directly interfered with the freedom of inter-State commerce, or if such restrictions were merely antecedent to, and distinct from, inter-State trade itself.

The High Court held that section 22A of the *Dairy Industry Act* was a valid enactment and not affected by section 92 of the Constitution. The court reasoned that legislative restrictions or prohibitions on the production or manufacture of goods, in themselves, do not infringe section 92. While the court acknowledged that the motive for limiting margarine production was to protect the butter market, it found that this did not necessarily equate to a direct interference with inter-State trade. The court distinguished between the act of manufacture and the act of inter-State trade, stating that while manufacture is a necessary precursor to trade, it does not, in itself, constitute trade or commerce among the States. The court emphasised that section 92 protects inter-State dealing and movement, not the activities that precede them.

The court found that the provisions of section 22A(1)(b) were valid and did not contravene section 92 of the Constitution. The company's defence failed, and the charge against it was upheld.