The Right to Silence in Australia: What the Police Caution Actually Means

Australia's starting point is different from the other three countries in this series. There is no national constitutional bill of rights equivalent to the US Bill of Rights or the Canadian Charter, so the right to silence rests on common law, reinforced by the uniform Evidence Act framework most states and territories have adopted. Criminal procedure is also predominantly a state and territory matter, which means the position is not perfectly uniform nationwide — most visibly in New South Wales, which carved out a real exception in 2013 that doesn't exist in the same form elsewhere.

The Common-Law Right to Silence

The general position across Australia is that a person is not obliged to answer police questions beyond specific, narrow statutory exceptions (such as providing your name and address in some circumstances, or complying with vehicle-related identification laws while driving). The standard police caution reflects this: a formulation widely used is "You do not have to say or do anything, but anything you do say or do may be used in evidence." The underlying principle — that silence should not itself be treated as evidence of guilt — is a long-standing feature of the common law inherited from England, though, as explained below, England's own position has since diverged from it.

Section 89 of the Evidence Act 1995

At the Commonwealth level, section 89 of the Evidence Act 1995 gives the common-law right to silence statutory force: in a criminal proceeding, the court is not to draw an unfavourable inference from evidence that a person failed or refused to answer a question, or to respond to a representation, put or made to them by an investigating official. Most states and territories that adopted the uniform Evidence Act model — including New South Wales, Victoria, Tasmania, and the ACT — have an equivalent provision. States that retained their own, non-uniform evidence legislation (Queensland, South Australia, and Western Australia) still recognise a similar right at common law, but the exact statutory framework differs, which is one more reason to check the specific state's law rather than assume the Commonwealth text applies directly.

New South Wales' Exception: The "Special Caution"

The clearest example of state-level divergence is in New South Wales. The Evidence Amendment (Evidence of Silence) Act 2013 inserted section 89A into the NSW Evidence Act 1995, allowing an unfavourable inference to be drawn from a defendant's silence in defined circumstances — but only where all of the following apply: the offence is a serious indictable offence (broadly, one carrying a maximum penalty of five years' imprisonment or more), the suspect is 18 or older, and the police gave a formal "special caution" — in substance, that failing to mention a fact now which is later relied on in court may harm the defence — in the presence of an Australian legal practitioner acting for the suspect, after the suspect had a reasonable opportunity to consult that practitioner privately about what the special caution means. Without every one of those conditions being met, including the presence of a lawyer at the time of the caution, the ordinary section 89 protection continues to apply even in New South Wales. This is a state-specific carve-out, not the national rule — other states and territories do not have an equivalent provision as of this writing.

Legal Advice and Support for Vulnerable People

Access to duty lawyers and legal aid at the point of police questioning varies by state and territory, as do specific protections for young people and Aboriginal and Torres Strait Islander people — many jurisdictions require a support person, an "interview friend," or a parent/guardian to be present for a young suspect, and have specific notification obligations connected to Aboriginal legal services. Because these protections are set at the state and territory level and change over time, the specific requirements applicable to a given interview should be confirmed against that state or territory's current legislation rather than assumed to be uniform nationally.

How Australia Compares to the US, UK, and Canada

Placed alongside its common-law relatives, Australia sits closer to Canada than to England and Wales on the core question: outside New South Wales' narrow serious-offence carve-out, silence generally cannot be used as evidence of guilt, similar to the Canadian position under section 7 of the Charter, and unlike the broader adverse-inference regime that applies under sections 34–37 of England and Wales' Criminal Justice and Public Order Act 1994. Unlike the United States, there is no single constitutional warning requirement and no national "Miranda" case — the obligations instead come from a mix of common law, state and territory legislation, and (in most jurisdictions) the uniform Evidence Act.

Sources & Further Reading

• Evidence Act 1995 (Cth), section 89
• Evidence Act 1995 (NSW), section 89A, inserted by the Evidence Amendment (Evidence of Silence) Act 2013
• Judicial Commission of NSW, Criminal Trial Courts Bench Book — commentary on silence and section 89A
• State and territory legal aid commissions, for current duty-lawyer and support-person requirements

Practical Next Steps

If you're questioned by police anywhere in Australia, ask for a lawyer before answering substantive questions, and don't assume the rules you've read about one state apply automatically in another — criminal procedure genuinely differs across jurisdictions here. If you're in New South Wales and are given a formal special caution, treat that moment as significant: the law specifically requires you to have had a chance to consult a lawyer about what it means before it can have any legal effect. For the general, worldwide picture of what happens when you're arrested, see What Are Your Rights If You Are Arrested?

This article is general legal information, not legal advice. Criminal procedure varies by Australian state and territory and changes over time — consult a criminal lawyer licensed in the relevant jurisdiction before acting.