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Other Acts Done In Preparation For, or Planning, Terrorist Acts

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Bill Doogue

Author: Bill Doogue

Practice area: Commonwealth offences

Bill is a founding Director of Doogue + George, ranked by Doyle's Guide as a Preeminent Criminal Defence Lawyer in Victoria (2026) and an LIV Accredited Criminal Law Specialist since 1998 with over 30 years of experience in complex criminal and corporate matters. His depth of experience in this area means clients receive accurate, considered advice.

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Bill authored this content and last revised it for accuracy on 6 August 2026.

What is the offence of Other Acts Done In Preparation For, or Planning, Terrorist Acts?

This Commonwealth terrorism offence targets conduct undertaken at the preparatory or planning stage of politically, religiously or ideologically motivated violence. It is contained in section 101.6 of the Criminal Code Act 1995 (Cth) and is designed to criminalise serious pre-attack conduct connected to terrorism.

Key points

  • Legal requirement: An act must be carried out in preparation for, or planning of, a terrorist act.
  • Scope of offence: It can apply even where no attack occurs and may relate to one or multiple potential acts.
  • Court level: Heard in the Supreme Court of Victoria.

The maximum penalty for Other Acts Done In Preparation For, or Planning, Terrorist Acts is imprisonment for life.

Common defences may include factual dispute, wrongful identification, duress, honest and reasonable mistake of belief, impossibility, lack of intent, and whether the prosecution can prove the charge beyond reasonable doubt.

Have you been accused of Other Acts Done in Preparation for, or Planning, Terrorist Acts? You must not delay in calling our firm to receive important legal advice. 

Police Interview

If you are being interviewed for this offence, it is vital that you contact an experienced criminal lawyer for advice. This is a serious charge, and if you are being interviewed the police are most likely looking to charge you. The decision you make about how to conduct yourself in the interview is important.

Planning Terrorist Act

We can help find out information for you, such as will I be remanded, and what type of evidence to they have against me? We will help you answer questions such as should I give a no comment interview, or should I respond to their questions? A police interview can be an intimidating event, particularly when facing a charge such as this. We can give you expert advice and be with you at the interview.

Pleading Not Guilty

If pleading not guilty to this charge, you will need a lawyer who has handled cases such as this before. Your lawyer should pursue the prosecution to provide all disclosure items, and issue subpoenas for any other material which may be relevant to your defence. A case like this needs to be strongly defended by scrutinizing what evidence the prosecution say they have which links you to the terrorist organization, and what precise acts you have performed, and whether the acts are sufficient to constitute preparation or planning. The defence will require careful and methodical preparation so that you have the best opportunity to successfully defend the charge.

Pleading Guilty

Pleading guilty to this charge requires careful and thorough preparation. Your lawyer will take a complete life history to understand how your experiences may have contributed to the offending. We will advise you on the materials that should be presented to the court and assist you in gathering relevant reports, references, and supporting documentation to strengthen your case.

Which court will the case be heard in?

Acts done in preparation for, or planning of, terrorist acts are very serious Commonwealth offences which are heard in the Supreme Court.

What is the legal definition of Other Acts Done In Preparation For, or Planning, Terrorist Acts?

A person commits an offence if the person does any act in preparation for, or planning, a terrorist attack.

Examples of Other Acts Done In Preparation For, or Planning, Terrorist Acts

  • An accused purchases parts to make a bomb. They plan to detonate this bomb at Commonwealth bank in order to make a statement against corporate greed.

Legislation

The legislation for this offence can be found on section 101.6 of Criminal Code Act 1995.

Elements of the offence

To prove this charge, the Prosecution must prove the following beyond reasonable doubt:

  1. The accused completed an act in preparation for, or planning of,
  2. A terrorist act.

1. Did the accused complete an act in preparation or planning?

The prosecution merely has to prove that the accused completed an act in preparation of a terrorist act – they do not have to show that the accused completed a terrorist act.

An accused commits an offence even if:

  1. A terrorist act does not occur; or
  2. Their act is not done in preparation for, or planning of, a specific terrorist attack; or
  3. Their act is done in preparation for, or planning, more than one terrorist attack.1

For instance, if an accused purchased parts to make an explosive device, and they had decided they were going to plant an explosive inside a Melbourne bank, but they hadn’t chosen which bank yet, this would still be sufficient to constitute an ‘act in preparation’.

2. Was the act in preparation or planning of a terrorist act?

  1. ‘Terrorist act’ means an action or threat of action where:
    1. The action falls within subsection (2) and does not fall within subsection (3) (discussed below)
    2. The action is done or the threat is made with the intention of advancing a political, religious or ideological cause; and
    3. The action is done or the threat is made with the intention of:
      1. coercing, or influencing by intimidation, the government of the Commonwealth or a State, Territory or foreign country, or of part of a State, Territory or foreign country; or
      2. intimidating the public or a section of the public.2

    An act will only constitute a terrorist act if it is made with the intention of advancing a political, religious or ideological cause. For instance, if a person pulls out a gun and shoots their ex-partner in public, that would usually be considered murder, rather than a ‘terrorist’ attack. However, shooting a group of people exiting a synagogue might be considered a terrorist attack, if this action was done with the intention of advancing an ideological cause.

    An act will only be considered a terrorist act if it falls within subsection 2.

  1. Action falls within subsection (2) if it:
    1. causes serious harm that is physical harm to a person; or
    2. causes serious damage to property; or
    3. causes a person’s death; or
    4. endangers a person’s life, other than the life of the person taking the action; or
    5. creates a serious risk to the health or safety of the public or a section of the public; or
    6. seriously interferes with, seriously disrupts, or destroys, an electronic system including, but not limited to:
      1. an information system; or
      2. a telecommunications system; or
      3. a financial system; or
      4. a system used for the delivery of essential government services; or
      5. a system used for, or by, an essential public utility; or
      6. a system used for, or by, a transport system.

    Subsection (2) limits terrorist acts to acts of a serious nature. For instance, an act which causes serious physical harm could be considered a terrorist act. However, an act which causes only psychological or emotional harm would likely not be a terrorist act.

    An act will not be considered a terrorist act if it falls within subsection 3.

  1. Action falls within subsection (3) if it:
    1. is advocacy, protest, dissent or industrial action; and
    2. is not intended:
      1. to cause serious harm that is physical harm to a person; or
      2. to cause a person’s death; or
      3. to endanger the life of a person, other than the person taking the action; or
      4. to create a serious risk to the health or safety of the public or a section of the public.

    Subsection (3) ensures that acts done for the purpose of legitimate protest are not considered terrorist attacks. For instance, a group of protesters might vandalise Parliament House by covering it in graffiti and breaking the windows. While they may be liable for other criminal offences, they would be not liable for a terrorist attack, as the damage was intended to be limited to property only.

Can they prove you were preparing for or planning a terrorist act?

Defences

Defences to this could be a factual dispute, wrongful identification, duress, honest and reasonable mistake of belief, impossibility, lack of intent, and the concept of beyond reasonable doubt. It is also a defence if the accused actually did not do an act which was in preparation for or planning of a terrorist act.

Questions in cases like this

  • Did you do an act in preparation or planning of a terrorist act?
  • Were you preparing to cause serious physical harm, death or serious damage to property?
  • Were you motivated by a political, religious or ideological cause?
  • Were you intending to scare the public?
  • Were you intending to intimidate the government?

You should ring us and discuss your case if you have been charged. Deciding on whether to plead guilty or not has important implications for you and should be made after proper discussions with a criminal lawyer.

Maximum penalty for section 101.6 of the Commonwealth Criminal Code

The maximum penalty for Other Acts Done In Preparation For, or Planning, Terrorist Acts (s101.6 of the Commonwealth Criminal Code) is imprisonment for life.

Other important resources

  • Commonwealth Anti-Terrorism Legislation

 

FAQ about Other Acts Done in Preparation for, or Planning, Terrorist Acts

What types of conduct can amount to preparation or planning for a terrorist act?
Conduct can fall within this offence where it goes beyond mere thought or discussion and becomes an act connected to the organisation, facilitation or advancement of a terrorist act. The focus is on whether the behaviour forms part of the preparatory or planning process linked to terrorism.
A terrorist act involves action or a threat of action intended to advance a political, religious or ideological cause, combined with an intention to coerce or influence a government by intimidation or to intimidate the public. It must also involve serious harm, death, serious property damage or serious disruption to electronic systems.
Yes. The offence is not limited to preparation for a single identified incident. Conduct may fall within the provision even where it is connected to more than one potential terrorist act, provided the necessary legal elements are present.
Advocacy, protest, dissent or industrial action is not considered a terrorist act if it is not intended to cause serious physical harm, death, endanger life (other than the person engaging in the conduct), or create a serious risk to public health or safety. Lawful protest activity without those intentions does not meet the definition.
The legislation captures conduct involving serious physical harm, death, serious damage to property, or serious interference with, disruption to, or destruction of electronic systems. These features distinguish terrorism offences from other forms of serious criminal behaviour.
Charges of this nature are dealt with in the Supreme Court of Victoria. The seriousness of terrorism-related allegations means they are heard at the highest level of the state court hierarchy.

 

[1] Commonwealth Criminal Code Section 101.6 (2)
[2] Commonwealth Criminal Code Section 100.1(1)