What is natural justice and when does it apply to government decisions?

Natural justice is the oldest and most frequently litigated ground for challenging a government decision. It does not require you to show that the decision-maker made a factual error or applied the wrong law. It requires only that you were not given a fair opportunity to participate in the process before a decision was made that adversely affected you, or that the person making the decision was not impartial. Courts apply it rigorously because it goes to the legitimacy of the decision-making process itself, not just the outcome.

The term natural justice and procedural fairness are used interchangeably in Queensland law. Both refer to the same body of common law and statutory obligations. The Judicial Review Act 1991 (Qld) lists a breach of the rules of natural justice as a ground for judicial review under s 20(2)(a).

The Two Rules of Natural Justice

Natural justice consists of two distinct and independent rules. A breach of either is sufficient to establish the ground for review.

Rule 1: The Hearing Rule (The Right to Be Heard)

Before a decision is made that will negatively affect your rights or interests, the decision-maker must give you a fair opportunity to know the case against you and to respond to it. What this requires in practice depends heavily on the nature and consequences of the decision.

At a minimum the hearing rule generally requires the decision-maker to:

• Notify you that a decision is being considered and that it may adversely affect you
• Disclose the substance of the case, complaint, or information against you — not just a bare allegation but enough detail that you can meaningfully respond
• Give you a reasonable opportunity to respond, provide evidence, and make submissions before the decision is finalised
• Actually consider your response before deciding — giving you a chance to respond and then ignoring what you say is as much a denial of natural justice as giving you no opportunity at all

The hearing rule does not always require an oral hearing. For many administrative decisions, a written response opportunity is sufficient. Whether an oral hearing is required depends on the seriousness of the decision and whether facts in dispute cannot fairly be resolved on the papers alone.

Examples of the hearing rule in practice:

• A professional licensing board receives a complaint about a solicitor, doctor, or engineer. Before revoking the licence, it must put the substance of the complaint to the practitioner and give them an opportunity to respond. Revoking a licence on the basis of a complaint the practitioner never saw is a clear denial of natural justice.
• A council officer proposes to issue a compliance notice requiring costly works to a building. The building owner must generally be told what the alleged non-compliance is and have an opportunity to contest it before the notice issues.
• A minister proposes to cancel a visa on character grounds. The visa holder must be informed of the information the minister intends to rely on and given an opportunity to put submissions before the decision is made. This is one of the most litigated areas of natural justice in Australia, with multiple High Court decisions in the last decade alone.

Rule 2: The Bias Rule (The Rule Against Bias)

The decision-maker must be, and must appear to be, impartial. This rule applies regardless of whether the substantive outcome of the decision was correct. An unbiased decision-maker who reaches the right result does not cure a decision made by a biased one.

There are two categories:

Actual bias exists where the decision-maker was in fact prejudiced against one party or had already made up their mind before hearing the evidence. Actual bias is difficult to prove because it requires evidence of the decision-maker’s state of mind. It is relatively rare as a standalone ground precisely because decision-makers rarely commit actual bias in writing.

Apprehended bias (also called apparent bias) is far more commonly established and is the test applied by Australian courts. The test, confirmed by the High Court in Ebner v Official Trustee in Bankruptcy (2000) 205 CLR 337, is whether a fair-minded lay observer, knowing the relevant facts, would reasonably apprehend that the decision-maker might not bring an impartial mind to the resolution of the question. Importantly:

• The observer is fair-minded and informed, not overly suspicious or complacent
• The apprehension must be reasonable, not merely possible
• The decision-maker’s own assurance that they are unbiased is not determinative

Common situations where apprehended bias arises:

• The decision-maker has a financial interest in the outcome (even a small shareholding in a company affected by the decision has been held sufficient in some cases)
• The decision-maker has a close personal relationship with one of the parties or their representatives
• The decision-maker has previously expressed a concluded view on the very question before them, in a context where that view was not appropriate
• The decision-maker is employed by or reports to one of the parties (common in internal review mechanisms where the reviewer answers to the same department as the original decision-maker)
• The decision-maker has a personal animosity toward the applicant

Legitimate Expectations

The hearing rule is extended by the doctrine of legitimate expectations. Even where you have no strict legal right to a particular outcome or procedure, if a government body has made a representation, followed a consistent past practice, or established a policy that led you to expect a particular process would be followed, natural justice may require that process to be provided before departing from it.

The classic example is a licence renewal. If a regulator has renewed a licence annually for ten years without adverse comment, an applicant may have a legitimate expectation that they will at least be told why renewal is being refused this year and given a chance to address the concern, even if they have no strict legal right to renewal.

Legitimate expectations do not give you a right to the outcome you expected — only a right to procedural fairness before that expectation is disappointed. The doctrine is recognised in Queensland administrative law consistently with the High Court’s approach in Minister for Immigration and Border Protection v Choong Ng and earlier authorities.

What Natural Justice Actually Requires: A Sliding Scale

Natural justice is not a fixed formula. The content of what fairness requires varies with the circumstances. The High Court in Kioa v West (1985) 159 CLR 550 confirmed that the obligation is to accord procedural fairness that is appropriate to the particular decision and its consequences.

The more serious the potential adverse consequences of a decision, the more procedural protection is required:

Decision Type	Typical Natural Justice Content
Minor regulatory notice	Written notice of allegation; written response opportunity
Occupational licence suspension	Detailed notice of charges; written submissions; possibly oral hearing
Occupational licence revocation	Full particulars; written submissions; oral hearing with legal representation permitted
Professional deregistration	All of the above plus hearing before an independent panel
Visa cancellation (character grounds)	Ministerial invitation to comment; opportunity to put all relevant material
Criminal deportation or removal	Maximum procedural protection; legal representation; full hearing

For decisions at the lower end (a minor council notice), courts do not demand a full adversarial hearing. For decisions at the upper end (deregistration, deportation), courts are very demanding about procedural adequacy.

When Can Parliament Exclude Natural Justice?

Parliament can expressly legislate to exclude natural justice obligations, and in certain areas has done so. Common exclusions include:

• National security and intelligence decisions: Where disclosure of the case against the applicant would itself compromise security matters
• Emergency decisions: Where the urgency of the situation makes prior notification impractical (though natural justice obligations may revive after the emergency has passed)
• Certain immigration decisions: Parliament has attempted to exclude or limit natural justice obligations in some visa cancellation categories, though the High Court has repeatedly held that s 75(v) of the Constitution provides a minimum guarantee that cannot be entirely removed

The courts apply a strict interpretive rule: unless Parliament has clearly and unambiguously excluded natural justice, the presumption is that it applies. A general privative clause (a clause purporting to exclude court review entirely) does not by itself exclude natural justice. Parliament must speak with specificity to oust an obligation as fundamental as the right to be heard.

What Happens if Natural Justice Is Denied?

If a court finds that a decision-maker denied natural justice, the decision is typically declared invalid and set aside (quashed by certiorari). This is so even if the court considers it likely that the decision-maker would have reached the same conclusion had proper process been followed. The fairness of the process, not just the correctness of the outcome, is what the law protects.

Once quashed, the matter is remitted to the decision-maker (or a different, unbiased officer where bias was the problem) to be remade with proper process. As with all judicial review outcomes, the court does not substitute its own decision. The decision-maker may reach the same conclusion, but this time after a procedurally fair process.

There is one important qualification. In some cases — particularly where it can be shown that the denial of natural justice could not possibly have made any difference to the outcome — courts have declined to grant relief on the basis that it would be futile. This is sometimes called the “futility exception.” However, Australian courts apply it very narrowly: where there was any realistic possibility that hearing the applicant might have changed the decision, relief will generally be granted.

Practical Steps If You Believe Natural Justice Was Denied

If you believe a government decision was made without giving you a fair opportunity to be heard, or by someone with a conflict of interest:

1. Request a statement of reasons immediately under s 32 of the Judicial Review Act 1991 (Qld). The reasons will often reveal whether the decision-maker considered your submissions at all, and whether any information was relied on that was never put to you. See our FAQ: How do I request a statement of reasons?
2. Identify the specific breach: Was it the hearing rule (you were not told about the case against you, or not given a chance to respond) or the bias rule (a conflict of interest or predetermined view)?
3. Act promptly. There is no fixed time limit for judicial review applications, but courts expect them to be filed promptly. Delay weakens your position and can disentitle you to relief under the doctrine of laches.
4. Seek legal advice before filing. Natural justice arguments require careful pleading. A poorly framed judicial review application is costly to correct.

Last updated: May 2026 — see also Ep 13: Administrative Law and Government Decisions | What is the difference between merits review and judicial review? | How do I request a statement of reasons? | What is Administrative Law in Queensland?