Penton v Calwell

In *Penton v Calwell*, Arthur Augustus Calwell, a Commonwealth Minister, commenced defamation proceedings in the High Court of Australia against Brian Penton, the editor of the *Daily Telegraph*. Calwell alleged that an article published in the newspaper on 25 November 1944 falsely and maliciously defamed him. The article, in response to a speech by Calwell, accused him of being "maliciously and corruptly untruthful" and a "dishonest, calculating liar," and included a challenge for Calwell to sue the newspaper.

The legal issues before the High Court included whether the article was protected by qualified privilege as a reply to attacks made by Calwell, and the proper form and substance of a plea of justification when the defamatory matter alleges dishonest statements. Specifically, the court had to determine if the inclusion of challenges to sue in the article negated the defence of privilege, and whether the particulars provided for justification adequately supported the claim that Calwell was habitually untruthful.

The High Court, by a majority, held that the challenges to sue did not preclude the defence of qualified privilege. The court reasoned that these challenges were merely an invitation to normal defamation proceedings and did not, in themselves, remove the privilege that might otherwise attach to a reply to public attacks. The court also considered the particulars supporting the plea of justification, noting that while the defamatory words were capable of meaning habitual mendacity, the particulars needed to be carefully framed to establish such a charge, particularly when dealing with statements of opinion or comment. The court varied the decision of Dixon J., allowing amendments to the defence.