Skip to content

What Is Blackmail?

Blackmail is a severe criminal offence in Australia. You will have likely committed blackmail if you have threatened to cause harm to someone or to a particular entity if they do not meet your demands. Blackmail can also occur if you threaten to expose damaging details or disclose sensitive information about an individual or entity if they do not meet your demands. This article will define blackmail in the legal context and the elements of blackmail.

Blackmail is the act of threatening to harm someone or someone’s reputation and where one person makes a demand on another person for specified property. The threat is normally accompanied by a threat or force and typically involves a monetary figure and benefits the blackmailer.

You will find that the Crimes Act of NSW explains that a blackmail offence can occur in two distinct instances. The Crimes Act provides that if you make any unwarranted demand with menaces with the intention of obtaining a gain or causing a loss, this will constitute blackmail. Similarly, if you make any unwarranted demand with menaces with the intention of influencing the exercise of a public duty, this will also constitute blackmail. The maximum penalty for a blackmail offence is ten years imprisonment.

This means that if you threaten someone by suggesting you will do something damaging to their reputation or otherwise (like physical harm) unless they yield to your demands, this will typically constitute blackmail. You may be demanding money, property, or something less physical. Whatever the case, a demand followed by a threat usually equates to blackmail.

As such, if you threatened another person intending to obtain a gain or cause a loss, you have likely blackmailed this person. Similarly, if you have threatened to reveal a secret to obtain business favours, you have likely committed blackmail.

Elements of Blackmail

Blackmail has three key elements that make up the offence:

  1. making unwarranted demands;
  2. use of threats; and
  3. intention to obtain a gain or cause a loss.

1. Is There a Demand?

Firstly, we need to determine if there were any unwarranted demands. Blackmail exists if the blackmailer demands money, property or services that are unjustified or owed to them. The blackmailer’s demand can be overt or subtly implied by their conduct.

To prove that there was a demand, the onus of proof is ‘beyond reasonable doubt’. The accused blackmailer has to make the demand. Otherwise, the Courts are likely to find the accused blackmailer not guilty.

2. Is There a Threat of Force?

Secondly, the blackmailer has to make a threat of force. It must shown the blackmailer threatened to cause you harm or a loss if you did not meet their demands.

If, however, the Crown does find that there was a demand, they will continue to try and prove the second element of the offence, which is proving that a threat or force accompanied the demand. The Crown will ask the following questions:

  • What was the threat or force?
  • Was it being made against the victim?
  • What words or conduct occurred?
  • Did those words/conduct amount to a threat?

These questions are asked from an objective point of view. That means that a court would need to consider whether or not a person of ‘reasonable firmness and courage’ would have considered the conduct to be threatening enough to respond in a way that is contrary to their wishes. In other words, what would a regular person do in that situation? How would they react?

3. Did They Intend to Steal, Obtain a Gain or Cause a Loss?

Once the second element has been proven, the Crown must prove the third, essentially the mens rea or ‘guilty mind’ aspect of the offence. Was there an intention to obtain a gain or cause a loss? It would need to be determined if the blackmailer intended to obtain a benefit for themselves or to cause the victim harm by the threats. Similarly, you must consider whether the person intends to deprive you of your property or money permanently. It needs to be shown that the accused knew that the property did not belong to them and that they acted with a guilty state of mind.

Front page of publication
Corporate Governance Guide for SMEs

Running a small business? Download this free guide to understand your corporate governance responsibilities, including the decision-making processes.

Download Now

Key Takeaways

Blackmail is a serious criminal offence and is punishable by fines and imprisonment. To establish blackmail an act of threatening behaviour must have occurred. Moreover, it needs to be shown the perpetrator intended to cause harm or damage to the individual or entity. Blackmail is considered an offence no matter how obvious, overt, subtle or implied the conduct is. The elements of blackmail include the need to prove unwarranted demands, the use of threats and an intention to obtain a gain or cause a loss. 


If you or your organisation are being blackmailed, contact our experienced litigation lawyers as part of our LegalVision membership. For a low monthly fee, you will have unlimited access to lawyers to answer your questions and draft and review your documents. Call us today on 1300 544 755 or visit our membership page

Register for our free webinars

Construction Industry Update: What To Expect in 2026

Online
Stay ahead of major construction regulatory changes. Register for our free webinar.
Register Now

Protect, License, Enforce: IP Strategies for In-House Legal Teams

Online
Strengthen your company’s IP strategy and safeguard its value. Register for our free webinar.
Register Now

Going Global: Expanding Your Franchise Overseas

Online
Learn how to scale your franchise internationally and unlock new markets. Register for our free webinar.
Register Now

Work Hard, Play Harder: Managing Employee Off-Duty Behaviour

Online
Understand the risks of off-duty conduct and protect your business from reputational damage. Register for our free webinar.
Register Now
See more webinars >
Madison Cali

Madison Cali

Lawyer | View profile

Madison is a Lawyer at LegalVision in the Disputes and Litigation team. She graduated from Macquarie University with a Bachelor of Commerce, majoring in Professional Accounting, and a Bachelor of Laws. Madison specialises in debt recovery assistance and provides advice on Marketing Law, in particular, the application of the Australian Consumer Law.

Qualifications: Bachelor of Laws, Bachelor of Commerce, Macquarie University. 

Read all articles by Madison

About LegalVision

LegalVision is an innovative commercial law firm that provides businesses with affordable, unlimited and ongoing legal assistance through our membership. We operate in Australia, the United Kingdom and New Zealand.

Learn more

We’re an award-winning law firm

  • Award

    2025 Future of Legal Services Innovation Finalist - Legal Innovation Awards

  • Award

    2025 Employer of Choice - Australasian Lawyer

  • Award

    2024 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2024 Law Firm of the Year Finalist - Modern Law Private Client Awards

  • Award

    2022 Law Firm of the Year - Australasian Law Awards