Catts v Murdoch

This case concerned an appeal to the High Court of Australia from a conviction at the Central Police Court, Sydney. The appellant, James Howard Catts, had been charged by Gordon Murdoch under regulation 28(a) of the War Precautions Regulations 1915 with making statements likely to prejudice His Majesty's relations with a foreign power, specifically Japan. The statements were made orally at a public meeting.

The legal issues before the High Court were whether there was sufficient evidence to establish that the statements made by the appellant were likely to prejudice relations between His Majesty and Japan, and whether expert evidence was required to prove this likelihood. The appellant argued that the statements themselves did not inherently demonstrate such a likelihood and that the circumstances of their utterance, including the absence of Japanese individuals at the meeting, meant they were unlikely to reach Japanese authorities.

The Court, in dismissing the application for a rule nisi for prohibition, reasoned that the likelihood of prejudice to relations with a foreign power could be assessed based on common knowledge, including the existing cordial alliance between Great Britain and Japan. The Court held that the word "likely" in the regulation should be interpreted as "calculated to." It found that the statements, on their face, were undoubtedly calculated to prejudice relations between Great Britain and Japan, irrespective of the audience size or composition at the meeting. The focus was on the inherent nature of the utterances themselves.