The Director General of the Department of Agriculture v Crisdale

The Director General of the Department of Agriculture (the Director General) appealed to the New South Wales Court of Appeal against a decision of the Supreme Court of New South Wales. The dispute concerned the validity of a notice issued by the Director General under section 19(1) of the *Pest Destroyers Act 1901* (NSW) (the Act) requiring Crisdale to take certain steps to eradicate pests on its land. Crisdale had challenged the validity of this notice.

The primary legal issue before the Court of Appeal was whether the notice issued by the Director General was invalid for failing to specify with sufficient particularity the steps required to be taken by Crisdale for the eradication of pests. This involved an interpretation of the requirements of section 19(1) of the Act, which mandated that such notices must specify "the steps to be taken".

The Court of Appeal, comprising Kirby P, Glass JA, and Priestley JA, held that the notice was invalid. The Court reasoned that section 19(1) required a clear and specific directive as to the actions Crisdale was obliged to perform. A notice that merely stated "eradicate pests" without detailing the particular methods or measures to be employed was too vague and uncertain to be legally effective. The Court applied the principle that statutory powers must be exercised in a manner that is clear, unambiguous, and provides adequate notice to the recipient of their obligations.

Consequently, the Court of Appeal dismissed the Director General's appeal and affirmed the Supreme Court's decision, holding that the notice issued under section 19(1) of the *Pest Destroyers Act 1901* was invalid due to its lack of specificity.