Government and the Law in Australia
Understanding Australia's system of government, the role of the Constitution, the three levels of government, the separation of powers, and how the legal system operates.
Key Test Facts for Part 3
- The Australian Constitution is the legal document that sets up the government framework.
- The Constitution can ONLY be changed via a Referendum requiring a double majority.
- Australia's Head of State is King Charles III, represented by the Governor-General.
- The Head of Government is the Prime Minister.
- The 3 levels of government are Federal, State/Territory, and Local (Council).
- A proposed law is called a Bill until signed into law (Royal Assent) by the Governor-General.
1. The Australian Constitution & Changing the Constitution
The Australian Constitution is the supreme legal document that created the Commonwealth Parliament and established the framework for governing Australia. It took effect on 1 January 1901.
How the Constitution is Changed: The Double Majority
The Australian Constitution cannot be changed simply by an act of Parliament. It can only be altered through a national vote called a Referendum. To succeed, a referendum must achieve a double majority:
- A majority of all voters nationally (more than 50% across Australia).
- A majority of voters in at least 4 out of the 6 states.
2. Head of State vs. Head of Government
Australia is a constitutional monarchy. It is important not to confuse the Head of State with the Head of Government:
Head of State
King Charles III is Australia's monarch. Because the King lives in the United Kingdom, he is represented in Australia by the Governor-General at the federal level, and by Governors in each of the 6 states. The Governor-General acts independently of political parties.
Head of Government
The Prime Minister is the leader of the Australian Government. The Prime Minister is the leader of the political party (or coalition) that wins the majority of seats in the House of Representatives during a federal election.
3. Separation of Powers
To prevent any single group or person from holding absolute power, the Constitution divides governance into three separate branches:
Legislative (Parliament)
Has the power to make and amend laws. Composed of the King (represented by Governor-General), Senate, and House of Representatives.
Executive (Government)
Has the power to put laws into practice and administer public policy. Composed of the Prime Minister, Cabinet Ministers, and departments.
Judiciary (Courts)
Has the legal power to interpret and apply the law. Composed of independent judges across courts, headed by the High Court of Australia.
4. The Three Levels of Government
Australia has three tiers of elected government. Each level has distinct responsibilities to serve the community:
| Level of Government | Leader / Body | Key Responsibilities |
|---|---|---|
| 1. Federal (Commonwealth) | Prime Minister / Federal Parliament | Defense, foreign affairs, immigration, trade, taxation, social security (Centrelink), currency, postal services. |
| 2. State & Territory | Premier (States) / Chief Minister (Territories) | Public hospitals & health, state schools, police, public transport, railways, major highways, forestry, electricity. |
| 3. Local (Councils / Shires) | Mayor or Shire President / Councillors | Rubbish collection, local roads & footpaths, parks & playgrounds, local libraries, pet registration, town planning. |
5. Federal Parliament & How Laws Are Made
The Federal Parliament in Canberra is bicameral (two chambers):
House of Representatives (Green)
Also called the "Lower House" or "People's House". Members of Parliament (MPs) represent electorates divided roughly by population. The party with the majority in this house forms the government.
The Senate (Red)
Also called the "Upper House" or "States' House". Each of the 6 states elects 12 senators regardless of population, and each territory elects 2 senators (76 senators in total). Acts as a house of review.
Steps in Making a New Law
6. Compulsory Voting & The Court System
Secret Ballot & Compulsory Voting
Voting is compulsory for all Australian citizens aged 18 and over. Voting takes place by secret ballot, meaning your vote is completely private and nobody can force you to reveal how you voted.
Independent Courts & Police
Judges and magistrates are completely independent of parliament and politicians. The High Court of Australia is the ultimate court of appeal and interprets the Constitution. Police enforce laws but do not judge guilt or determine punishment.