The implied freedom of political communication 

The Australian Constitution contains no bill of rights and no guarantee of free speech. The implied freedom of political communication is nonetheless one of the most litigated constitutional doctrines, and understanding what it is — and what it is not — determines whether an answer starts in the right place.

Foundation

The freedom is not a free-standing value the Court has read into the Constitution. It is an implication drawn from specific provisions: ss 7 and 24, requiring that senators and members be "directly chosen by the people"; s 64, requiring ministers to be members of Parliament; and s 128, providing for constitutional alteration by referendum.

Those provisions prescribe a system of representative and responsible government. That system cannot operate unless electors can communicate about political and governmental matters. The freedom is what the text and structure require to make the prescribed system work — no more.

Two consequences follow, and both are examinable:

• The freedom extends only so far as necessary to sustain that system. It protects communication on governmental and political matters, not expression generally. Commercial speech, artistic expression and personal abuse are protected only where they bear on political matters.
• The freedom is a limit on legislative and executive power, not a personal right. Nobody "has" the freedom. The question is always whether a law is invalid, and a plaintiff does not need to show that their own communication was burdened in order to raise it.

The questions

Lange v Australian Broadcasting Corporation (1997) 189 CLR 520 set out the test, reformulated in Coleman v Power and refined since.¹ The current questions are:

1. Does the law effectively burden the freedom in its terms, operation or effect? The burden may be direct or incidental, and it need not be substantial to engage the analysis. If there is no burden, the inquiry ends.
2. Is the purpose of the law legitimate, in the sense of being compatible with the maintenance of the constitutionally prescribed system of representative and responsible government? A purpose is illegitimate if it is directed at restricting political communication for its own sake, or is otherwise inconsistent with that system.
3. Is the law reasonably appropriate and adapted to advance that legitimate object in a manner compatible with the prescribed system?

The third question is where the work is done, and where the Court has divided on method.

Structured proportionality

McCloy v New South Wales (2015) 257 CLR 178 introduced a three-stage analysis for the third question:

• Suitability — does the law have a rational connection to its purpose?² This is a low threshold; a law fails only if it cannot advance its stated object.
• Necessity — is there an obvious and compelling alternative, equally practicable and available, that would achieve the purpose with a lesser burden? The qualifiers matter: the Court does not ask whether it can imagine a better law, but whether an obvious less restrictive means was available.
• Adequacy in the balance — is the benefit of the law's purpose outweighed by the extent of the burden on the freedom? This is an evaluative judgment, and it is the stage most criticised as importing a value choice properly for the legislature.

Structured proportionality is not universally accepted on the Court. Some justices have preferred the undifferentiated "reasonably appropriate and adapted" formulation, or a calibrated approach in which the intensity of scrutiny varies with the nature and extent of the burden. A strong answer acknowledges the division rather than presenting McCloy as settled doctrine.

The doctrine had already moved in Babet v Commonwealth of Australia [2025] HCA 21⁵. Gageler CJ and Jagot J said at [49] that structured proportionality "can be a way of organising reasons", that its flexible application is to be understood as a "tool of analysis", and that "express or ritual invocation" of its steps "is by no means necessary in every case". Gordon J agreed with [49] and said at [72] that in that case it was not "necessary (or helpful) to apply the three steps of structured proportionality", and Beech-Jones J agreed with Gageler CJ and Jagot J at [242]. That is a statement about how this enquiry is conducted.

That division has now gone further. In Hopper v Victoria [2026] HCA 11³ Edelman J said at [86] that "[o]n any view, the first question in this structure is redundant" and that "[t]he third question also has little role to play", and at [87] that this, with "the antipathy towards any test based upon structured proportionality now expressed by a majority of this Court, may mean that a test based on structured proportionality should now be treated as dead". That is one Justice, and what he would keep is the second question — the transparency of asking whether the burden is reasonably capable of being seen as necessary. What the majority did matters more: the joint reasons of Gageler CJ, Gordon, Jagot and Beech-Jones JJ decide the case without using the language of proportionality at all. Treat the three stages as a tool for answering the question, and say that is what you are doing, rather than as the question itself.

Later cases have refined the analysis. Brown v Tasmania (2017) 261 CLR 328 applied it to protest legislation, invalidating provisions directed at protesters on forestry land. Clubb v Edwards (2019) 267 CLR 171 upheld safe access zone laws around abortion clinics, illustrating that a burden on political communication may be justified where the purpose is protective and the burden is confined in place and manner.

Political communication and the common law

Lange also held that the common law must conform to the Constitution. The immediate consequence was the extended qualified privilege defence in defamation, protecting publication to the general public on government and political matters where the publisher's conduct was reasonable.

The freedom therefore shapes private law as well as statute, though the mechanism differs: statute is invalid if it offends the freedom, while the common law is developed so as to conform.

The freedom and the executive

The freedom limits executive as well as legislative power. An executive act done under a valid statute may still be invalid if it burdens political communication in a way the statute does not authorise, and a discretion conferred in general terms will be read as not extending to a burden the freedom would forbid.

This is how the freedom reaches administrative decisions — refusals of permits for political demonstrations, conditions imposed on the use of public land, and directions restricting the speech of public employees. The analysis is the same, applied to the source of the burden actually complained of.

Where the burden arises from a discretion, the preferable course is usually to read the statute as not authorising the burden, leaving the statute valid and the exercise of power invalid.

Applying this in a problem question

1. Identify the law and the communication burdened, and state at the outset that the freedom is a limit on power rather than a personal right.
2. Ask whether the communication is on governmental or political matters — many answers fail here by assuming it.
3. Establish the burden in terms, operation or effect, and describe its extent, since extent matters at the balancing stage.
4. Identify the law's purpose precisely and test its compatibility with the prescribed system.
5. Work through suitability, necessity and adequacy in turn, and note that the availability of structured proportionality is itself contested.
6. On necessity, name a specific alternative and explain why it is obvious, compelling and equally practicable — a vague assertion that a lesser measure was possible will not do.

One further caveat, and it goes deeper than the test. In LibertyWorks Inc v Commonwealth of Australia (2021) 274 CLR 1⁴ Steward J questioned the existence of the implication, saying at [298] that the divergence of views about the test "perhaps may illustrate the tenuous nature of that implication" and that if its content "cannot even now be agreed upon, then, for my part, that may demonstrate that it was never justified"; at [304] he thought the division "may ... justify a reconsideration, with leave if necessary, of the existence of the implied freedom". He went no further: no party had challenged the implication, so it was "not appropriate to deny its application here". That is one Justice inviting future argument. Gageler CJ and Jagot J drew the opposite inference from the same disagreement in Babet (above), saying at [49] that "[d]ebate about the best way in which to ascertain if the implied freedom of political communication has been infringed says nothing about the legitimacy of the principle". The freedom is the law; do not write that the Court has doubted its existence.

Self-check

• Have I avoided describing the freedom as a right?
• Have I established that the communication is political before applying the test?
• Have I identified the constitutional provisions from which the implication is drawn?
• Have I acknowledged the division on structured proportionality?
• Have I named a concrete alternative at the necessity stage?