When can NSW police stop and search you?

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Operations like Disrupt are now a regular feature of policing in Sydney. Officers flood a station or a line, stop large numbers of people, and search a share of them. The power to do that comes almost entirely from one Act, the Law Enforcement (Powers and Responsibilities) Act 2002 (NSW), the statute most people know as LEPRA. It sets out when an officer can stop you, when they can search you, and the rules they must follow while they do it.

Most people have a rough sense that police cannot search them for no reason. That is broadly right, and it matters. The general search power turns on reasonable suspicion, a test the courts take seriously. But there are also powers that do not need suspicion at all, such as the wanding power in declared areas and the use of drug detection dogs at authorised places. Knowing which power an officer is using tells you what they must be able to justify.

This article sets out the main personal search powers, what reasonable suspicion means in practice, the rules on drug dogs and strip searches, whether you can refuse, and what a court does when a search was not lawful.

When can NSW police stop and search you without a warrant?

The main power is section 21 of LEPRA. It lets an officer stop, search and detain you, and anything in your possession or control, without a warrant, if the officer suspects on reasonable grounds that you have any of four things: something stolen or otherwise unlawfully obtained; something used, or intended to be used, in or in connection with an offence; a dangerous article, such as a weapon, being carried for an unlawful purpose; or a prohibited drug or plant. If the officer finds one of those things, they can seize and keep it.

Section 21A adds some limited extra steps to a section 21 search. An officer can ask you to open your mouth, or to shake or run your hands through your hair, so the officer can see whether anything is concealed there. The officer cannot force your mouth open. These are ancillary powers, and they still depend on the search being lawful in the first place.

Section 21 is not the only search power. Police can search you on arrest, and again when you are brought into custody, without needing fresh suspicion, because the arrest itself supplies the basis. There are also targeted powers for particular settings, including the wanding power for declared areas, which we cover in our piece on wanding and knife scanning under LEPRA. On a transport operation, an officer will usually be relying on section 21 for a general search, unless a wanding declaration is in force.

What does reasonable suspicion mean?

Reasonable suspicion is the heart of the general search power, and it is where most search cases are won or lost. The words are not defined in the Act. The leading authority is R v Rondo [2001] NSWCCA 540, which says a suspicion is more than a possibility but less than a reasonable belief. There has to be some factual basis for it, and it must be a basis that a reasonable person could act on. The court asks what the officer actually knew at the moment of the search, not what turned up afterwards.

What that rules out is as important as what it allows. A suspicion cannot rest on a person's race, their age, the way they are dressed, or the mere fact that they are in a place where crime is common. Nervousness alone rarely does the work. Nor does a refusal to answer questions, because you are usually free not to answer. An officer who searches on one of those bases, and nothing more, is open to the argument that the search was unlawful from the start. That is why the officer's own account, in their notes and on body-worn video, matters so much. The suspicion has to be there before the search, and it has to be explained.

Can a drug detection dog give police grounds to search you?

Drug dogs are a fixture of transport operations. Part 11 of LEPRA lets police use a dog for general drug detection at a set of authorised places, which include public transport, stations, and licensed premises, without a warrant. So the dog walking the platform is, by itself, lawful.

The harder question is what happens after the dog reacts. An indication by a dog is not treated by the Act as automatic grounds to search you. Any search that follows still has to satisfy the section 21 test of reasonable suspicion. Whether a dog's indication, on its own, can supply that suspicion has been argued both ways in the courts, and the answer often turns on the reliability of the dog and what else the officer observed. The published figures have long shown that a large share of searches after a dog indication find no drugs at all. Where a search rested on an indication alone, and nothing was found or the indication was shaky, that is a genuine line of challenge.

When can police strip search you in NSW?

A strip search is a serious step, and the law treats it that way. Under section 31 of LEPRA, a strip search is only lawful where the officer suspects on reasonable grounds that it is necessary for the purposes of the search. Away from a police station, in a field search, there is a higher bar: the officer also needs the seriousness and urgency of the circumstances to make the strip search necessary. The threshold is not met just because an ordinary search could be done.

Sections 32 and 33 set the rules for how it is done. The search must be in a private place, out of the view of anyone whose presence is not needed, and not in the presence of a person of the opposite sex. Police must tell you that clothing will be removed and give the reason, ask for your cooperation, and be as quick as they reasonably can. They cannot touch your body, and they cannot search body cavities, though they can require you to open your mouth. A child under 10 is not to be strip searched at all. For a person aged 10 to 18, or a person with impaired capacity, a parent, guardian or other support person should be present. Public strip searches, and searches that ignore these safeguards, have been found unlawful, and they have been the subject of sustained scrutiny in NSW.

Can you refuse a police search in NSW?

If the search is lawful, you cannot refuse it, and trying to stop it physically can be a separate offence of hindering or resisting police. See our page on assault and resist police in NSW for how that runs. Police may use reasonable force to carry out a search they are entitled to conduct.

Consent is different. If police ask for your permission to search, you do not have to give it. This matters, because consent can turn a search that would otherwise be unlawful into a lawful one, and it can shut down the argument that the officer lacked reasonable suspicion. You are not required to consent, and you are not required to answer questions beyond giving your name and address where the law requires it. The practical advice at the scene is simple: do not resist, say clearly whether or not you consent, stay calm, and note what is said and done. The place to test the lawfulness of a search is a courtroom, not a train platform.

What must police tell you when they search you?

LEPRA sets safeguards on the exercise of these powers. Before or while exercising a search power, an officer must provide their name and place of duty, evidence that they are a police officer if not in uniform, and the reason for the search. These are not empty formalities. A failure to follow them can bear on whether the search was properly conducted, and it feeds into the argument about whether any evidence found should be admitted.

On a large operation, body-worn video usually records the stop from the officer's side. That footage is often the best account of what was actually said, what the officer relied on, and whether the safeguards were met. Getting it early is part of the defence work in any search matter.

What happens if a police search was unlawful?

An unlawful search does not end the case on its own, but it opens a powerful argument. Evidence that was obtained improperly or unlawfully can be excluded under section 138 of the Evidence Act 1995 (NSW). The court weighs the seriousness of the breach against the value of the evidence and the seriousness of the alleged offence. If the drugs or the knife were found only because of a search that failed the reasonable suspicion test, the case can fall away when that evidence is excluded.

This is why the first question in a drug or weapon matter is often not about the drug or the weapon at all. It is about the stop. Was there a real, explained suspicion before the search? Did a dog indication carry more weight than it should? Did a field strip search meet the seriousness and urgency test? Did the officer give their name and reason? Each of those is a place where a charge built on a bad search can be pulled apart. Our pages on drug supply in NSW and custody of a knife in a public place set out the charges that most often come out of operations like Disrupt.

What we do for clients charged after a search.

The work starts with the brief and the body-worn video. We read what the officer says the suspicion was, and we test it against what the footage actually shows. A search that rested on appearance, presence in a station, or a refusal to answer questions is a search worth challenging. Where a strip search was involved, we check every safeguard against the record.

For a person with a clean record charged with a first drug or knife offence, the outcome often depends on both the legal argument and the personal case. A section 10 result, which avoids a conviction, is within reach for the right matter with strong character material. Where the charge is more serious, or is one of several, the defence is built to match. The advice on the first call is the same either way: do not enter a plea before the brief is read and the search is examined.

Frequently asked.

When can NSW police search you without a warrant?

Under section 21 of LEPRA an officer can stop, search and detain you without a warrant if they suspect on reasonable grounds that you have a stolen item, something used or to be used in an offence, a dangerous article such as a weapon, or a prohibited drug or plant. There are separate powers to search you on arrest and while in custody.

What does reasonable suspicion mean for a police search?

Reasonable suspicion is more than a possibility and less than a reasonable belief. R v Rondo requires a factual basis the officer could later explain to a court. A hunch, a person's appearance, or the fact that they are in a high-crime area is not enough on its own.

Can a drug detection dog give police grounds to search you?

A dog can be used for general drug detection at authorised places, including public transport and licensed premises, under Part 11 of LEPRA without a warrant. Whether an indication is enough, on its own, to give the officer reasonable suspicion has been contested. A search still has to satisfy the section 21 test.

When can police strip search you in NSW?

Only where the officer holds a reasonable suspicion that it is necessary. In the field, the officer also needs the seriousness and urgency of the circumstances. Sections 32 and 33 require privacy, no touching, no body cavity search beyond the mouth, and extra protections for children. A child under 10 cannot be strip searched.

Can you refuse a police search in NSW?

You cannot lawfully refuse a search police are entitled to carry out, and resisting can be a separate offence. If police ask for your consent, you are not obliged to give it, and consent can make an otherwise unlawful search lawful. If a search is not lawful, say you do not consent, do not resist, and note the officer's details.

What happens if a police search was unlawful?

Evidence found in an unlawful or improper search can be challenged under section 138 of the Evidence Act 1995 (NSW). The court weighs the seriousness of the breach against the value of the evidence and decides whether to exclude it. A search that fails the reasonable suspicion test is often the first and strongest argument in a drug or weapon matter.

To speak to a criminal defence lawyer, call Aaron Kernaghan on 0421 717 019.

This article is written by Aaron Kernaghan, criminal defence lawyer at Good Legal Lawyers, as at 3 August 2026. It is commentary and reflects the personal opinion of the author only. It is not legal advice, it is not a substitute for advice on your own matter, and it does not purport to be accurate or complete. Any matter referred to may be before the court and any person charged is presumed innocent. For advice on a specific matter, contact Aaron Kernaghan on 0421 717 019 or contact the firm.

More criminal-law commentary by Aaron Kernaghan.

Primary sources: Law Enforcement (Powers and Responsibilities) Act 2002 (NSW); R v Rondo [2001] NSWCCA 540; Evidence Act 1995 (NSW), s 138; NSW Police, Operation Disrupt media release, 3 August 2026.

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