Interstate extradition in Australia.

The short version.

If a court in one State or Territory issues a warrant for your arrest, that warrant can be executed against you anywhere in Australia. You do not have to be in the State where the charge sits. Police in the State where you are found can arrest you and bring you before a local magistrate. The magistrate then decides whether you go back to the issuing State on bail or in custody. The whole process is a creature of one Commonwealth Act, the Service and Execution of Process Act 1992 (Cth). Lawyers call it SEPA.

For a firm in Canberra this comes up often. The ACT shares a porous border with New South Wales. A person charged in Queanbeyan or Goulburn may live in the ACT. A person wanted in the ACT may be picked up in Sydney. The rules below apply the same way in each direction, because for the purposes of SEPA the word "State" includes the ACT and the Northern Territory.

How does interstate extradition work in Australia?

Interstate extradition is not really extradition in the international sense. It is the execution of a warrant across a State border. Part 5 of SEPA sets up a single national scheme. A warrant issued under the law of one State has effect in every other State. There is no need for the issuing State to seek permission, obtain a fresh order, or engage any minister.

Under section 82, a person named in a warrant can be apprehended in another State by the police of that State, by the Sheriff or the Sheriff's officers, or by a member of the Australian Federal Police. The person does not have to have done anything in the arresting State. Being physically present is enough. The arrest happens on the strength of the interstate warrant alone.

Once arrested, the person is not simply put on a plane. Section 83 requires that the person be brought before a magistrate in the State where they were apprehended, as soon as practicable. That local hearing is where the real decisions are made.

What happens if there is a warrant for your arrest in another State?

You are taken before a magistrate. What the magistrate can do depends on whether the warrant, or a copy of it, is put before the court.

If the warrant or a copy is produced, and the warrant is valid, section 83 gives the magistrate a binary choice. The magistrate must either remand you on bail on condition that you appear before the court in the issuing State, or order that you be taken in custody to that State. There is no third path where a valid warrant is on the table.

If the warrant or a copy is not produced, the position is different. The magistrate may release you, or may adjourn the proceeding for up to five days and remand you on bail or in custody in the meantime. If the warrant is still not produced when the matter comes back, the magistrate must order your release. A copy is enough; the arresting State does not need to fly the original document down.

Can you get bail on an interstate warrant?

Yes. Bail is one of the two orders open to the magistrate when a valid warrant is produced. This is the point at which good advocacy earns its keep. A person who is bailed can make their own way back to the issuing State and appear at the listed time. A person who is refused bail is transported in custody, which can mean days in a cell and a long drive or flight in restraints.

Two features matter. First, the bail law that applies is the bail law of the State where you were arrested, not the State that issued the warrant. If you are picked up in the ACT on a NSW warrant, the ACT magistrate applies the Bail Act 1992 (ACT). If you are picked up in NSW on an ACT warrant, the Bail Act 2013 (NSW) applies, including the show-cause provisions where they are engaged.

Second, if bail is granted, a standard condition is that you surrender to the issuing State as soon as practicable. Failing to appear in the issuing State is then a fresh problem on top of the original charge. The bail is a bridge, not a discharge.

There is also a category of person the magistrate must ask about. Under section 84, before dealing with the matter the magistrate must find out whether the person is already "under restraint" in another State, meaning on bail, on parole, on a bond, or otherwise subject to an order. If so, extra conditions attach to any bail, including a condition that the person return to the State where they were already under restraint. We look at how the existing bail interacts with the new order every time a client is arrested interstate. Our notes on bail in the ACT and on show cause in NSW set out the local tests.

Can a magistrate refuse to send you back to another State?

The room to refuse is narrow, and this catches people out. Under the old Service and Execution of Process Act 1901, a magistrate had a broad discretion to decline to back a warrant if returning the person would be unjust or oppressive. That discretion did not survive into the 1992 Act. Where a valid warrant is produced, the magistrate must make a return order. The magistrate is not conducting a committal, is not testing the strength of the Crown case, and is not deciding guilt.

The live questions are therefore about the warrant itself. Is it a valid warrant on its face? Does it name this person? Has a copy been produced within the time the Act allows? The magistrate is also not bound by the ordinary rules of evidence in these proceedings, which speaks to the summary character of the hearing.

If the order is made and there is a proper basis to challenge it, the order can be reviewed by the Supreme Court of the State in which it was made. Review is not an automatic re-run. It is a targeted argument that the magistrate lacked a basis for the order or misapplied the Act.

Which State prosecutes first?

A person can be wanted in two places at once, or can be facing local charges in the arresting State and interstate charges elsewhere. As a general rule the State where the person is held deals with its own matters first. That has a real effect on timing. A client arrested in the ACT on a NSW warrant who also faces ACT charges may need to resolve the ACT matters, or at least reach a point in them that allows bail, before the return to NSW takes effect. Sequencing the two sets of proceedings is part of the job.

Is interstate extradition the same as international extradition?

No, and the difference is large. Moving a person between Australian States and Territories runs under SEPA and is quick and administrative. Moving a person to or from a foreign country runs under the Extradition Act 1988 (Cth). International extradition involves a treaty or a regulation, a request through diplomatic channels, an eligibility hearing, and a decision by the Commonwealth Attorney-General. Grounds of objection exist that have no place in the interstate scheme, such as the political-offence exception and dual-criminality arguments. If someone tells you they are "fighting extradition" it is worth knowing which of the two schemes they mean, because the tools are not the same.

What we do for clients arrested on an interstate warrant.

The first task is the bail argument in the arresting State, because that decides whether the client waits in custody or at home. We get instructions fast, confirm identity and the terms of the warrant, and prepare a bail application under the local Act. Ties to the arresting State, a proposed plan to appear in the issuing State, and an offer of conditions all help.

The second task is coordination. A person arrested in one State on another State's warrant usually needs a lawyer in each place. We brief a lawyer in the issuing State, hand over the bail undertaking and the return date, and make sure the appearance is covered. The gap between States is where cases fall over, so we close it.

The third task is the merits of the underlying charge, which is the real fight. Interstate extradition only decides where you answer the charge. It does not decide the charge. Once the client is before the right court, the work is the same as any defended matter: the brief, the plea decision, and, where it comes to that, the hearing or trial.

Frequently asked.

Does the Service and Execution of Process Act 1992 cover the ACT?

Yes. For the purposes of the Act, State includes the Australian Capital Territory and the Northern Territory. A warrant issued in the ACT can be executed in New South Wales or any other State, and a warrant from any State can be executed in the ACT.

Can you get bail on an interstate warrant?

Yes. Where a valid warrant is produced, section 83 of the Service and Execution of Process Act 1992 (Cth) gives the magistrate two options: remand the person on bail to appear in the State that issued the warrant, or order that the person be taken in custody to that State. If bail is granted, a condition is that the person surrender to the issuing State as soon as practicable. The bail law of the State where the person is arrested applies.

How long can you be held if the warrant is not produced?

If the warrant or a copy is not produced when the person is first brought before the magistrate, section 83 lets the magistrate release the person, or adjourn the proceeding for up to five days and remand the person on bail or in custody in the meantime. If the warrant is still not produced when the matter resumes, the magistrate must order that the person be released.

Can a magistrate refuse to send you back to another State?

The grounds are narrow. Where a valid warrant is produced, the magistrate must make a return order. The broad discretion to refuse a warrant on unjust or oppressive grounds that existed under the old 1901 Act was not carried into the 1992 Act. The order can be reviewed by the Supreme Court of the State in which it was made.

Is interstate extradition the same as international extradition?

No. Extradition between Australian States and Territories runs under Part 5 of the Service and Execution of Process Act 1992 (Cth). Extradition to or from a foreign country runs under the separate Extradition Act 1988 (Cth), which involves treaties, the Attorney-General, and a very different process.

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 22 July 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.

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