Marsden v Amalgamated Television Services Pty Limited

The case of Marsden v Amalgamated Television Services Pty Limited involved the respondent, Amalgamated Television Services Pty Limited, seeking a declaration that the appellant's activities constituted industrial action and an injunction to restrain the appellant from engaging in such activities. The case was heard in the Full Bench of the Industrial Relations Court of Australia. The appellant, Marsden, challenged the legality of certain surveillance activities conducted by the respondent, including the use of a listening device without a warrant, as required by the Listening Devices Act, 1984.

The court was required to determine the admissibility of evidence obtained through the use of the listening device and whether the respondent's actions constituted industrial action. The appellant argued that the listening device was deployed in contravention of the Act and that any evidence obtained should be excluded. The respondent contended that the listening device was used in accordance with the law and that the evidence it produced was valid and relevant to the proceedings.

The court found that the evidence obtained from the listening device was inadmissible due to the lack of a proper warrant. The court held that the purported "warrant" provided by the respondent did not comply with the requirements of the Act, and therefore, any evidence obtained through the use of the listening device was not admissible. The court also found that the respondent's actions did constitute industrial action. As a result, the court granted the respondent's application for a declaration and injunction, subject to the exclusion of the inadmissible evidence.

The court ordered that the respondent be restrained from engaging in the industrial action and that any evidence obtained through the use of the listening device be excluded from the proceedings. The court also ordered that the respondent pay the appellant's costs of the application. The decision highlights the importance of strict compliance with the requirements of the Listening Devices Act, 1984, and the consequences of failing to do so.