What happened
David Lange, a former Prime Minister of New Zealand and member of its Parliament, brought a defamation action in the Supreme Court of New South Wales against the Australian Broadcasting Corporation. The action arose from a television broadcast that criticised Lange's performance, conduct and fitness for office during his time in New Zealand politics. The ABC raised two defences in its amended pleading. Paragraph 10 asserted a defence based on an implied freedom guaranteed by the Commonwealth Constitution to publish material discussing government and political matters, including the suitability and performance of holders of high office. This plea drew directly on the majority reasoning in Theophanous v Herald & Weekly Times Ltd (1994) 182 CLR 104 and Stephens v West Australian Newspapers Ltd (1994) 182 CLR 211. Paragraph 6 relied on the common law defence of qualified privilege, particularising that the broadcast concerned subjects of public interest and political matters occurring in New Zealand, that the ABC had a duty to publish to viewers who had a legitimate interest in receiving the information, and that those viewers had a reciprocal interest.
Lange contended that both defences were bad in law. He argued that Theophanous and Stephens had no application to discussion of the conduct of a member of a foreign parliament and, in any event, were wrongly decided. Brennan CJ stated a case to the Full Court of the High Court asking two questions: whether the paragraph 10 defence was bad in law, and whether the paragraph 6 defence was bad in law in respect of the New South Wales publication. The proceeding was heard concurrently with a demurrer in Levy v Victoria raising similar issues. A large number of Attorneys-General and media organisations intervened. The Full Court (Brennan CJ, Dawson, Toohey, Gaudron, McHugh, Gummow and Kirby JJ) delivered a unanimous joint judgment on 8 July 1997.
The Court answered that the paragraph 10 defence was bad in law. The paragraph 6 defence was not bad in law, but the particulars supplied did not bring the publication within the expanded form of qualified privilege that the Court held must now be recognised. The matter was remitted to the Supreme Court of New South Wales. The ABC was ordered to pay Lange's costs in the High Court, with interveners required to contribute in proportions reflecting the time their submissions extended the hearing. Any payments by interveners to Lange were in relief of the ABC's liability.
Why the court decided this way
The Court began by acknowledging that it is not bound by its previous decisions but will reconsider them only with great caution and for strong reasons, particularly in constitutional matters. It examined Theophanous and Stephens and concluded that, although the reasoning in those cases lacked the support of a clear majority on every point (Deane J concurred in the answers but expressed significant reservations about the conditions of the defence), the decisions stood for the proposition that the common law rules of defamation must conform to the requirements of the Constitution. The fuller argument in the present case, together with the illumination provided by McGinty v Western Australia (1996) 186 CLR 140, Langer v The Commonwealth (1996) 186 CLR 302 and Muldowney v South Australia (1996) 186 CLR 352, justified revisiting the precise content of the implied freedom and the appropriate development of the common law.
The Court grounded its reasoning in the text and structure of the Constitution. Sections 7 and 24 require that senators and members of the House of Representatives be directly chosen by the people at periodic elections. This choice can only be genuine if the people have access to information and are able to communicate about government and political matters. The system of responsible government established by sections such as ss 6, 49, 62, 64 and 83, and the referendum procedure in s 128, reinforce the need for ongoing, uninhibited communication outside election periods. Freedom of communication on government and political matters is therefore an indispensable incident of the constitutionally prescribed system. However, the freedom is not absolute and is not a personal right; it operates as a limitation on legislative and executive power.
The law of defamation burdens that freedom because it exposes publishers to damages or injunctions for communications about government or political matters. The critical question was whether the common law of defamation, and the New South Wales statutory regime, is reasonably appropriate and adapted to the legitimate end of protecting personal reputation in a manner compatible with the system of representative and responsible government. The Court concluded that, without development, the traditional common law rule requiring reciprocity of duty and interest (as applied in cases such as Lang v Willis (1934) 52 CLR 637) imposed an unreasonable restraint on mass communications about political matters. The "varying conditions of society" now required a broader protection.
The Court therefore developed the common law by recognising that every member of the Australian community has an interest in disseminating and receiving information on government and political matters. This interest extends the categories of qualified privilege. For publications to a wide audience, the defence is available only if the publisher's conduct is reasonable. Reasonableness requires reasonable grounds for believing the imputation true, proper verification steps, absence of belief in falsity, and (ordinarily) giving the plaintiff an opportunity to respond. The defence is defeated by proof of malice in the sense of an improper purpose. Because the New South Wales law, including s 22 of the Defamation Act 1974 (NSW), satisfied this standard when understood in light of the expanded common law, it did not unduly burden the constitutional freedom.
The paragraph 10 plea was bad because the Constitution itself does not create a private defence; the immunity arises from the conformity of the common law (or statute) with the constitutional requirement. The paragraph 6 plea was good in principle once the common law is developed, but the particulars—focused on New Zealand matters without addressing reasonableness—did not engage the expanded defence, although the Court left open the possibility that better particulars could do so given the potential relevance of New Zealand political matters to Australian affairs.
Before and after state of the law
Before Lange, the law was shaped by Theophanous and Stephens. By a 4:3 majority those cases had held that the Constitution implies a freedom to publish material discussing government and political matters, and that a publication attracted a constitutional defence if the defendant was unaware of its falsity, did not publish recklessly, and the publication was reasonable. A publication attracting the freedom could also be described as one of qualified privilege. The common law of qualified privilege itself was understood to require a reciprocity of duty and interest that was ordinarily absent when defamatory matter was published to a large audience (Lang v Willis (1934) 52 CLR 637; Telegraph Newspaper Co Ltd v Bedford (1934) 50 CLR 632). In New South Wales, s 22 of the Defamation Act 1974 provided a statutory qualified privilege where the recipient had an interest in the subject, the matter was published in the course of giving information on that subject, and the publisher's conduct was reasonable. Without the statutory defence, the common law was thought to impose an undue burden on political communication.
After Lange, the constitutional defence recognised in Theophanous no longer exists as a distinct doctrine. The Constitution does not confer personal rights or defences; it operates only as a limit on power. The common law has been developed so that qualified privilege now extends to publications on government and political matters to the general public, but only where the publisher proves reasonableness of conduct. The additional Theophanous requirements of absence of knowledge of falsity and absence of recklessness are not separate elements of the common law defence; they are subsumed within the reasonableness inquiry in all but exceptional cases. Malice defeats the defence only if the plaintiff proves the publication was actuated by an improper purpose rather than the purpose of communicating political information. The protection of reputation remains a legitimate end compatible with the constitutional system, provided the burden on communication is not undue. The New South Wales statutory regime, particularly s 22, continues to operate and is compatible with the Constitution when the common law is understood in its developed form. Legislation in other States may require separate evaluation, but the common law across Australia must now conform to the principles stated in Lange.
Key passages with plain-English translation
The joint judgment contains several foundational statements. At the outset the Court said: "Freedom of communication on matters of government and politics is an indispensable incident of that system of representative government which the Constitution creates by directing that the members of the House of Representatives and the Senate shall be 'directly chosen by the people' of the Commonwealth and the States, respectively." In plain English, this means the Constitution's requirement that the people choose their representatives necessarily presupposes that voters can talk to each other, read newspapers, watch television and otherwise exchange views about politics and government without undue legal hindrance; otherwise the choice would not be free or informed.
Later the Court declared: "Each member of the Australian community has an interest in disseminating and receiving information, opinions and arguments concerning government and political matters that affect the people of Australia. The duty to disseminate such information is simply the correlative of the interest in receiving it." This translates to a recognition that in a modern democracy every citizen has a legitimate stake in public discussion of politics; that stake creates both a right to speak and a right to hear, which in turn expands the traditional defence of qualified privilege beyond narrow occasions of private duty.
On the relationship between common law and Constitution the Court stated: "The common law of libel and slander could not be developed inconsistently with the Constitution, for the common law's protection of personal reputation must admit as an exception that qualified freedom to discuss government and politics which is required by the Constitution." In everyday language, the ordinary rules that protect people from false slurs must give way where they would otherwise prevent the level of political debate that the Constitution demands; the common law must therefore be reshaped to accommodate that constitutional necessity.
The test for the expanded defence is set out in the following passage: "Whether the making of a publication was reasonable must depend upon all the circumstances of the case. But, as a general rule, a defendant's conduct in publishing material giving rise to a defamatory imputation will not be reasonable unless the defendant had reasonable grounds for believing that the imputation was true, took proper steps, so far as they were reasonably open, to verify the accuracy of the material and did not believe the imputation to be untrue. Furthermore, the defendant's conduct will not be reasonable unless the defendant has sought a response from the person defamed and published the response made (if any) except in cases where the seeking or publication of a response was not practicable or it was unnecessary to give the plaintiff an opportunity to respond." This is a practical checklist: check your facts, have a proper basis for what you say, don't think it's false, and give the target a fair chance to answer before you go to air or print.
Finally, on the two-stage test for validity of a law that burdens the freedom the Court said: "When a law of a State or federal Parliament or a Territory legislature is alleged to infringe the requirement of freedom of communication imposed by ss 7, 24, 64 or 128 of the Constitution, two questions must be answered before the validity of the law can be determined. First, does the law effectively burden freedom of communication about government or political matters either in its terms, operation or effect? Second, if the law effectively burdens that freedom, is the law reasonably appropriate and adapted to serve a legitimate end the fulfilment of which is compatible with the maintenance of the constitutionally prescribed system of representative and responsible government and the procedure prescribed by s 128..." In plain English, courts must ask whether a law (or common law rule) gets in the way of political talk, and if so, whether it is a sensible and proportionate way of achieving a proper goal (such as protecting reputation) that does not undermine the democratic system the Constitution sets up.
What fact patterns trigger this precedent
Lange is triggered whenever a defendant in a defamation action seeks to rely on the implied constitutional freedom or on qualified privilege in respect of a publication that concerns government or political matters. The precedent applies to mass-media publications—television broadcasts, newspaper articles, internet posts—directed to the general public rather than to a limited audience with whom the publisher has a pre-existing duty or interest. It is engaged when the subject matter relates to the performance, suitability or conduct of holders of public office, the exercise of governmental power, policies of political parties, or any matter that could inform the people's choice at federal elections or referenda. Because the integration of Australian political life means that State, Territory and even local government matters may bear on federal issues, the precedent is not confined to purely Commonwealth topics. It may also extend to discussion of foreign political matters, such as New Zealand affairs in the present case, where those matters "may often affect or throw light on government or political matters in Australia" because of geography, history, constitutional and trading arrangements.
The precedent is not confined to election periods; it applies to ongoing discussion between elections. It is relevant both at common law and when assessing the validity of statutory defamation regimes. A publisher who can plead and prove that the publication was reasonable in the Lange sense—reasonable grounds for belief in truth, verification, opportunity for response—will have a defence even if the material was false, provided there was no improper purpose amounting to malice. The fact pattern does not require the plaintiff to be an Australian politician; a foreign former prime minister can trigger the defence if the publication concerns matters relevant to Australian political discourse. The precedent is not engaged by purely private disputes or non-political defamatory publications.
How later courts have treated it
The judgment itself makes clear that Lange builds directly on Nationwide News Pty Ltd v Wills (1992) 177 CLR 1 and Australian Capital Television Pty Ltd v The Commonwealth (1992) 177 CLR 106, applying their recognition of the implied freedom while clarifying its limits. It treats Theophanous and Stephens as correctly deciding that the common law must conform to the Constitution but revises their reasoning so that the constitutional implication does not itself supply a personal defence. The Court cites McGinty v Western Australia (1996) 186 CLR 140 for the proposition that the Constitution gives effect to representative government only to the extent that its text and structure establish it, and applies that textual and structural approach to confine the implication to what is necessary to give effect to ss 7, 24, 64, 128 and related provisions. Cunliffe v The Commonwealth (1994) 182 CLR 272 is cited for the negative character of the implication as a limitation on power rather than a grant of rights.
Within the judgment the Court emphasises that the common law must be developed to meet changing conditions, citing Jumbunna Coal Mine NL v Victorian Coal Miners' Association (1908) 6 CLR 309 and Australian National Airways Pty Ltd v The Commonwealth (1945) 71 CLR 29 for the proposition that the content of the freedom is ascertained by reference to what is for the common convenience and welfare of society. It treats earlier authorities on qualified privilege such as Toogood v Spyring (1834) 1 CM&R 181, Adam v Ward [1917] AC 309 and Wason v Walter (1868) LR 4 QB 73 as correct in their time but as requiring adaptation to contemporary conditions of mass communication and integrated national political life. The judgment therefore stands as the authoritative synthesis and development of the earlier implied-freedom cases, settling both constitutional doctrine and the contemporary common law of qualified privilege.
Still-open questions
The judgment expressly leaves open whether further and better particulars could bring the ABC's publication concerning New Zealand political matters within the expanded defence, noting the potential relevance of New Zealand affairs to Australian government or political matters by reason of geography, history, constitutional and trading arrangements. It does not decide the precise boundaries of "government or political matters" or whether every discussion of foreign politics would qualify. The Court also leaves for future evaluation whether defamation legislation in States other than New South Wales is reasonably appropriate and adapted to the legitimate end of protecting reputation without unduly burdening the constitutional freedom.
Although the judgment states that reasonableness of conduct is required only when the occasion would not have attracted qualified privilege under the traditional English common law, it does not exhaustively catalogue every situation in which the reasonableness requirement applies or is dispensed with. The precise content of "improper purpose" for the purposes of malice in the political context is illustrated but not fully defined; the Court notes that causing political damage or using vigorous language does not itself constitute malice, but the outer limits remain for later decision. The interaction between the developed common law defence and statutory codes in Queensland and Tasmania, which already contain a reasonableness element, is not explored. Finally, the judgment does not address how the expanded defence applies to non-media defendants or to internet communications that may reach an even wider and less identifiable audience than traditional broadcasting. These questions are left to be worked out in subsequent litigation, consistent with the Court's caution that the common law develops incrementally by reference to the constitutional text and structure.