Microwave Safety Systems Pty Ltd v Commissioner for Fair Trading, Department of Commerce

The case involved Microwave Safety Systems Pty Ltd, a company, and the Commissioner for Fair Trading, Department of Commerce. The dispute centred on the validity of a search warrant issued by the Commissioner under the Fair Trading Act 1987. The company argued that the warrant was issued without proper justification and thus was invalid. The matter was heard in the Supreme Court of New South Wales.

The central legal issue was whether the investigator had a belief on reasonable grounds that there was evidence of a breach of a provision of the Fair Trading Act 1987. Additionally, the court needed to determine whether the facts material to the decision to issue or to decline to issue the warrant were correctly disclosed in the application for the warrant, and whether the warrant was invalid due to the lack of disclosure of reasonable grounds for a belief as to contravention. These issues required the court to assess the procedures followed by the investigator in issuing the search warrant.

The court found that the investigator did not have a belief on reasonable grounds that there was evidence of a breach of the Fair Trading Act 1987. The application for the warrant did not adequately disclose the reasonable grounds for the belief as to contravention. Consequently, the court concluded that the warrant was issued invalidly. The investigator's reliance on assumptions and general beliefs was insufficient to establish the necessary reasonable grounds. The court held that the invalidity of the warrant stemmed from the failure to properly disclose the material facts that should have informed the decision to issue the warrant.

The Supreme Court of New South Wales quashed the search warrant issued by the Commissioner for Fair Trading, Department of Commerce, and declared it invalid. The decision underscored the importance of adhering to procedural requirements and ensuring that all material facts are disclosed in applications for search warrants under the Fair Trading Act 1987.