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Lesson 1

The Australian Constitution: Foundation of Public Law

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Welcome to your first lesson. This series is designed to give you a concise summary of the key content from chapters 10, 11, and 12 of your VCE Legal Studies textbook, focusing on what you'll need for your SACs.

We'll begin with the foundational topic from Chapter 10: the Australian Constitution. In this lesson, we will focus on its core purpose and its status as the supreme law of Australia. By the end of our session, you'll be able to explain what the Constitution is, why it was created, and what it means for it to be the highest source of public law in the country.

What is a Constitution?

At its most basic, a constitution is the rulebook for a country. It establishes the key institutions of government and sets out their powers. In Australia, the Constitution holds a special status, making it more powerful than any other law.

To understand this special status, please read the first few paragraphs of the "Infosheet 13 - The Constitution" from the Parliament of Australia.

Infosheet 13 - The Constitution – Parliament of Australia

This reading provides a clear, official definition of a constitution and introduces the concept of the Australian Constitution as a 'supreme law'.

In the section "What is a constitution?", please read the two paragraphs starting from the beginning. Focus on the distinction made between ordinary laws and a constitution with 'special status'.


The Purpose of the Australian Constitution

The Australian Constitution was created for a very specific reason: to unite the six self-governing British colonies into a single nation. This process is known as Federation. The Constitution, therefore, had two primary purposes:

  1. To legally establish the new nation, the Commonwealth of Australia.
  2. To create a federal system of government, outlining the structure and powers of the new central government (the Commonwealth Parliament) and defining its relationship with the state governments.

The "Infosheet 13" resource you just looked at explains this historical context.

Infosheet 13 - The Constitution – Parliament of Australia

This reading covers the historical context and purpose behind the creation of the Constitution.

Read the sections titled How was the Australian Constitution created? and "What does the Australian Constitution do?". Pay close attention to the statement about the Constitution originating as an "agreement under which the former colonies came together".

A common point of confusion is the name of the document itself. While drafted by Australians, the Constitution was legally enacted by the British Parliament. This is a key detail. The following short video explains the distinction between the Commonwealth of Australia Constitution Act 1900 (the British law) and the Australian Constitution itself (which is contained within that Act).

The Commonwealth of Australia Constitution Act 1900 | AUSSIE LAW

This video clarifies the technical but important difference between the British Act that contains our Constitution and the Constitution itself.

Watch the video from the beginning up to the 3:17 mark. The presenter clearly explains why the document was an Act of the British Parliament and where the Australian Constitution is located within it (Section 9).


The Constitution as Supreme Law

The most important feature of the Constitution for your legal studies is its status as supreme law. This means it is the fundamental law of Australia, and no person or parliament—not even the Commonwealth Parliament—can pass a law that contradicts it. If a parliament passes an Act that is found to be inconsistent with the Constitution, that Act is invalid.

The Parliamentary Education Office provides a clear explanation of this principle.

Overview - Parliamentary Education Office

This resource explains the concept of the Constitution as 'fundamental law' and the consequences for any law that contradicts it.

Read the first paragraph of this overview, under the main heading. It starts The Australian Constitution and directly states that an Act passed by Parliament is invalid if it is unconstitutional.

This supreme status isn't just a theoretical idea. It is actively enforced by the High Court of Australia. One of the High Court's primary roles is to interpret the Constitution. When a law is challenged, the High Court can decide whether it is 'unconstitutional'. If the Court finds that a law, or part of a law, violates the Constitution, it is declared invalid and has no legal effect.

This short video clip explains the role of the High Court as the guardian of the Constitution.

Basics of Australian Government Explained Part Three: The Constitution

This segment explains the High Court's power to interpret the Constitution and strike down laws.

Watch the section from 06:51 to 07:27. The video provides a real historical example of when the government tried to pass a law that was ultimately found to be unconstitutional.

The Constitution's supremacy is also protected by how difficult it is to change. Unlike regular laws, which can be amended by a simple vote in parliament, the Constitution can only be changed through a special process called a referendum, outlined in Section 128. This process requires a 'double majority':

  • A majority of all voters across Australia must vote 'yes'.
  • A majority of voters in a majority of the states (at least four out of six) must also vote 'yes'.

This strict requirement ensures the foundational rules of the nation cannot be changed easily, cementing the Constitution's position as the supreme and enduring source of law.


Key Takeaways

To summarise this lesson's key points for your revision notes:

  • Purpose: The Australian Constitution is a foundational legal document created to unite the Australian colonies into a single nation (Federation) and to establish a federal system of government, setting out the powers and structure of the Commonwealth government.
  • Supreme Law: It is the highest law in Australia. Any law passed by any parliament that is inconsistent with the Constitution is invalid.
  • Enforcement: The High Court of Australia interprets the Constitution and has the power to strike down unconstitutional laws.
  • Amendment: Its supreme status is protected by a difficult amendment process (a referendum requiring a double majority), ensuring it cannot be changed without the broad support of the Australian people.

In our next lesson, we will build directly on this foundation. We will examine how the Constitution divides law-making powers between the Commonwealth and state parliaments, exploring the different types of powers—specific, exclusive, concurrent, and residual.