Legal Studies
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The Constitution, Federation and Structures of Government
The Nature and Purpose of the Commonwealth of Australia Constitution Act 1901
The Commonwealth of Australia Constitution Act 1901 (UK) is the supreme law of Australia. It is an Act of the British Parliament that established the Commonwealth of Australia by federating six self-governing colonies — New South Wales, Victoria, Queensland, South Australia, Western Australia, and Tasmania — into a single nation on 1 January 1901. The Constitution operates as a foundational legal document that both creates the institutions of government and constrains the exercise of their powers.
The Constitution serves several distinct purposes:
- Constitutive function: It creates the three branches of the Commonwealth government — the legislature (Parliament, Chapter I), the executive (Chapter II), and the judiciary (Chapter III). Without the Constitution, these institutions would have no legal existence.
- Distributive function: It distributes legislative power between the Commonwealth and the states, allocating specific subject matters to the Commonwealth Parliament under section 51 (concurrent powers) and section 52 (exclusive powers), while residual powers remain with the states.
- Protective function: It contains a small number of express rights, including the right to trial by jury for serious Commonwealth offences (s 80), freedom of religion (s 116), and the right to just terms for compulsory acquisition of property (s 51(xxxi)).
- Limiting function: It imposes structural constraints — such as the requirement that money bills originate in the House of Representatives (s 53) — that prevent any single branch from accumulating unchecked power.
A critical feature is the doctrine of constitutional supremacy: where a law is inconsistent with the Constitution, it is invalid to the extent of the inconsistency (Australian Communist Party v Commonwealth (1951) 83 CLR 1). This is enforced by the High Court of Australia, which acts as the constitutional guardian under Chapter III.
Worked Example: In Commonwealth v Tasmania (1983) 158 CLR 1 (the Tasmanian Dam Case), the High Court upheld Commonwealth legislation blocking a dam on the Franklin River. The Commonwealth relied on the external affairs power (s 51(xxix)) in conjunction with Australia's obligations under the World Heritage Convention. The case illustrates how the Constitution's grant of legislative power, when interpreted expansively by the High Court, can allow the Commonwealth to intervene in matters traditionally considered state affairs — demonstrating both the distributive and limiting functions of the Constitution simultaneously.
The Federal Structure: Commonwealth, State/Territory and Local Government
Australia operates under a federal system of government, meaning that sovereign power is divided between a national government and regional governments by a supreme legal instrument — the Constitution. This stands in contrast to a unitary system (where power flows from the centre) and a confederal system (where the central government is weak relative to the regions).
The Australian federal structure comprises three tiers:
- Tier 1 — Commonwealth (Federal) Government: Established by the Constitution, the Commonwealth Parliament has legislative power over specific subject matters listed in the Constitution. Section 51 sets out 39 concurrent heads of power (including taxation, trade and commerce, and corporations), while section 52 lists exclusive powers (such as defence and customs). Under section 109, where a valid Commonwealth law is inconsistent with a state law, the Commonwealth law prevails and the state law is invalid to the extent of that inconsistency. The Commonwealth government has three branches: Parliament (bicameral — Senate and House of Representatives), the Executive (formally the Governor-General-in-Council; practically the Prime Minister and Cabinet), and the Judiciary (High Court and federal courts).
- Tier 2 — State and Territory Governments: Australia has six states and two self-governing territories (Australian Capital Territory and Northern Territory). Each state has its own constitution, parliament, executive and court system. States possess plenary legislative power — that is, unlimited power to make laws for the peace, order and good government of the state, subject to the Commonwealth Constitution. Territories derive their power from Commonwealth legislation (the Australian Capital Territory (Self-Government) Act 1988 and Northern Territory (Self-Government) Act 1978), making their status constitutionally weaker than states. Queensland is notable for having a unicameral Parliament — the Legislative Assembly — after the abolition of the Legislative Council in 1922.
- Tier 3 — Local Government: Local councils are not mentioned in the Constitution and have no independent constitutional status. They are creatures of state legislation (in Queensland, the Local Government Act 2009 and City of Brisbane Act 2010). They exercise delegated powers to regulate matters of local concern — land use, waste, local roads, and community facilities. A 1988 referendum to recognise local government in the Constitution failed, confirming their subordinate position.
| Level | Constitutional Basis | Legislative Scope | Queensland Example |
|---|---|---|---|
| Commonwealth | Constitution 1901 (UK Act) | Enumerated + concurrent powers (ss 51, 52) | Centrelink; Australian Federal Police |
| State | State constitutions; plenary power | Residual powers; peace, order and good government | Queensland Parliament; QPS; Queensland Health |
| Territory | Commonwealth legislation | Delegated by Commonwealth; can be overridden | NT Legislative Assembly |
| Local | State legislation (delegated) | Local regulatory matters; no constitutional status | Brisbane City Council; Sunshine Coast Council |
Section 109 in practice: In Momcilovic v The Queen (2011) 245 CLR 1, the Court considered inconsistency issues arising from the interaction of state and Commonwealth law. The principle is that the Commonwealth's paramountcy under s 109 means states must always legislate with awareness of whether valid Commonwealth law already covers the field.
Stimulus: 'The Racial Discrimination Act 1975 (Cth) gives effect to Australia's obligations under the International Convention on the Elimination of All Forms of Racial Discrimination. Section 9 of the Act renders unlawful any act involving a distinction, exclusion, restriction or preference based on race, colour, descent or national or ethnic origin that has the purpose or effect of nullifying or impairing the recognition, enjoyment or exercise, on an equal footing, of any human right or fundamental freedom in the political, economic, social, cultural or any other field of public life.' — Explanatory Memorandum, Racial Discrimination Act 1975 (Cth). Using the stimulus and your knowledge, explain how section 9 of the Racial Discrimination Act 1975 (Cth) operates to prohibit racial discrimination in the workplace. In your response, identify the key elements a complainant must establish.
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Answer: Worked solution
Section 9 of the Racial Discrimination Act 1975 (Cth) (RDA) is the principal operative provision that renders racial discrimination in the workplace unlawful at the federal level. Section 9(1) makes it unlawful for a person to do any act involving a distinction, exclusion, restriction or preference based on race, colour, descent, or national or ethnic origin that has the purpose or effect of nullifying or impairing the recognition, enjoyment or exercise, on an equal footing, of any human right or fundamental freedom in the political, economic, social, cultural or any other field of public life. As the stimulus confirms, this provision gives direct domestic effect to Australia's treaty obligations under the International Convention on the Elimination of All Forms of Racial Discrimination (ICERD) 1965. In an employment context, a complainant seeking to invoke s 9 must establish three core elements. First, the complainant must identify a relevant protected attribute — namely their race, colour, descent, or national or ethnic origin. Second, they must demonstrate that the respondent's act involved a distinction, exclusion, restriction or preference based on that attribute. This encompasses both direct discrimination (where race is the explicit basis of the adverse treatment, such as refusing to promote a person because of their Aboriginal heritage) and indirect discrimination (where a neutral criterion disproportionately disadvantages persons of a particular racial group, such as a language requirement not justifiable by the inherent requirements of the role). Third, the complainant must show that this conduct has the purpose or effect of nullifying or impairing the enjoyment or exercise of a human right or fundamental freedom — notably, s 9 is engaged by either purpose or effect, meaning that an employer cannot escape liability by claiming no discriminatory intent was present. The breadth of the phrase 'on an equal footing' is significant: it imports a comparative standard, requiring the court or tribunal to assess whether the complainant was treated less favourably relative to a person of a different racial background in comparable circumstances. Once a prima facie case is established under s 9, the burden may shift to the respondent to demonstrate a lawful justification, such as the special measures exception under s 8 RDA.
All 20 practice exams
- Exam 1 — Racial Discrimination Act 1975 (Cth) — structure, key provisions (ss 9, 10, 18C), and enforcement mechanisms; International Convention on the Elimination of All Forms of Racial Discrimination (ICERD) 1965 — Articles 1, 2, 4, 5, 6, and special measures under Article 1(4); Australian Human Rights Commission — role, complaint process, conciliation, and limitations in employment discrimination contexts
- Exam 2 — Age Discrimination Act 2004 (Cth) — structure, protected attributes, and complaint mechanisms; Australian Human Rights Commission (AHRC) — complaint pathway, conciliation, and referral to court; Effectiveness of federal anti-discrimination legislation in addressing age discrimination in recruitment
- Exam 3 — Sex Discrimination Act 1984 (Cth) — provisions, protected attributes and enforcement mechanisms; Gender pay equity in Australian workplaces — legislative and regulatory frameworks; Australian Human Rights Commission — role, complaint process and limitations
- Exam 4 — Disability Discrimination Act 1992 (Cth) — scope, protected attributes, and coverage grounds; Reasonable adjustment obligations in education and employment under the DDA 1992; Limitations and enforcement gaps in the DDA 1992 unjustifiable hardship defence
- Exam 5 — Asylum seekers and the non-refoulement principle; Refugees Convention 1951 Article 33; Australia offshore processing policy Nauru Manus
- Exam 6 — Prisoners' voting rights and legislative disenfranchisement under the Commonwealth Electoral Act 1918 (Cth) s 93(8AA) and Electoral Act 1992 (Qld) s 9(5); ICCPR Article 25 — right to participate in public affairs and to vote; Implied freedom of political communication under the Australian Constitution
- Exam 7 — Homeless persons' access to justice in Queensland; Public nuisance offences under the Summary Offences Act 2005 (Qld); Criminalisation of poverty and its human rights implications
- Exam 8 — Freedom of expression and national security under ICCPR Article 19; Australian counter-terrorism legislation and its human rights implications; Implied freedom of political communication (Lange v ABC)
- Exam 9 — Children's rights in the juvenile justice system; Convention on the Rights of the Child (CRC) and Australian implementation; Queensland youth detention practices and the Youth Justice Act 1992 (Qld)
- Exam 10 — Indigenous Australians and the right to self-determination — ICCPR Article 1 and ICERD; International human rights framework: UDHR 1948, ICCPR 1966, ICERD 1966; Australian domestic implementation of international human rights obligations
- Exam 11 — Gender identity protections under the Sex Discrimination Act 1984 (Cth); Definition and scope of 'gender identity' as a protected attribute in Australian anti-discrimination law; Role of the Australian Human Rights Commission in enforcing sex discrimination protections
- Exam 12 — Australian Human Rights Commission — complaint and conciliation model; Federal anti-discrimination legislation: Racial Discrimination Act 1975, Sex Discrimination Act 1984, Disability Discrimination Act 1992, Age Discrimination Act 2004; Queensland Anti-Discrimination Act 1991 and Queensland Human Rights Commission
- Exam 13 — Implied freedom of political communication — Lange v ABC (1997) and AEUFDS test; Data retention laws — Telecommunications (Interception and Access) Amendment (Data Retention) Act 2015 (Cth); Right to privacy as a human right — ICCPR Article 17
- Exam 14 — Religious freedom and anti-discrimination law in Australia; Section 116 of the Australian Constitution — freedom of religion; Federal anti-discrimination legislation: Racial Discrimination Act 1975, Sex Discrimination Act 1984, Disability Discrimination Act 1992, Age Discrimination Act 2004
- Exam 15 — Whistleblower protection and freedom of information as human rights issues; Gaps in Australian legislative coverage; Public Interest Disclosure Act 2013 (Cth)
- Exam 16 — Death penalty and Australia's international human rights obligations; Convention Against Torture (CAT) and its obligations; Diplomatic advocacy in the Indo-Pacific
- Exam 17 — Domestic and family violence as a human rights issue; Australia's obligations under CEDAW and ICCPR; Adequacy of state legislative responses to DFV
- Exam 18 — Nature and sources of human rights — three generations, UDHR 1948, ICCPR 1966, ICESCR 1966; Emerging right to a clean/healthy environment as a third-generation right and its justiciability; Australia's international obligations under ICESCR Article 12, ICCPR Article 6 and the Stockholm/Rio Declarations
- Exam 19 — Access to justice for people with disability in Queensland; Disability Discrimination Act 1992 (Cth); Queensland Anti-Discrimination Act 1991 (Qld)
- Exam 20 — Counter-terrorism detention powers and the right to liberty and fair trial; ICCPR Articles 9 and 14; Proportionality of Australian security legislation
All 20 revision notes
- The Constitution, Federation and Structures of Government
- Separation of Powers and Parliamentary Sovereignty in Australia
- Exclusive, Concurrent and Residual Powers
- High Court Review, Constitutional Interpretation and the s128 Referendum
- Identifying and Scoping Legal Issues in a Changing Society
- Lobby Groups, Advocacy Organisations and Drivers of Reform
- Law Reform Commissions, Parliamentary Inquiries and Consultation Processes
- Evaluating Legal Alternatives Against Criteria of Justice, Equity and Consistency
- Nature, Origins and Three Generations of Human Rights
- The UDHR, ICCPR and ICESCR: Scope, Binding Force and Key Provisions
- Specialist UN Treaties: CRC, CAT, ICERD and the Refugees Convention
- UN Charter, Treaty Bodies, Special Rapporteurs and Limitations of Enforcement
- International Court of Justice and International Criminal Court: Jurisdiction and Limits
- Australia's Ratification, Implementation and Economic Sanctions as Enforcement
- Rights of Accused Persons in Australian Criminal Proceedings
- Express Constitutional Rights and the Implied Freedom of Political Communication
- The Four Federal Anti-Discrimination Acts: Scope, Direct and Indirect Discrimination
- AHRC Role, Complaint Mechanisms, Powers and Limitations
- Queensland Anti-Discrimination Act 1991 and Access to Justice Issues
- Evaluating the Effectiveness of Australia's Human Rights Protections