Foundations of Public and Criminal Law – Week 2: Separation of Powers

Theme: Separation of Powers (SOP) as a fundamental constitutional doctrine to prevent tyranny by dividing power among the Legislature, Executive, and Judiciary, with checks and balances.
Key aphorism: “Power tends to corrupt, and absolute power corrupts absolutely” — Lord Acton.
Historical anchors:
- Magna Carta (1215): established that even the king is subject to the law; introduced the rule of law and defined individual rights and liberties. Notable clause (paraphrased): no free man shall be seized, imprisoned, exiled, or deprived of his rights except by lawful judgement of his peers or by the law.
- Montesquieu: liberty requires separation of judging power from legislative and executive power; danger if combined with either.
- James Madison: accumulation of legislative, executive, and judiciary in the same hands equals tyranny.
Core Premise:
- The sovereign has a range of powers (creating, administering, interpreting and enforcing law).
- These powers should be allocated to different arms of government to prevent tyranny; each arm checks and balances the others.
- Rule of law requires that power be exercised lawfully and should be challengeable if misused.
Structure of the course content:
- Part 1: Separation of Powers – principles, then the three arms.
- Part 2: Parliament (Legislature)
- Part 3: The Executive
- Part 4: The Judiciary
- Part 5: Implications, debates about implied rights and judicial activism
The Rule of Law (summary):
- Power is exercised through law, not arbitrary discretion.
- Each arm acts within constitutional boundaries; powers are reviewable and contestable in courts.
- Education centre materials and poster resources emphasise accountability and transparency in government.
Quick glossary references (bold terms in slides have glossaries):
- Checks: mechanisms allowing each arm to review/override actions of the others.
- Independence: especially for the judiciary to decide without fear or favour.
- Reserve powers: certain executive powers remaining for exceptional circumstances.
- Bicameral: Parliament with two houses.

The Separation of Powers (Core Idea and Core Premise)

Core Premise (core concept):
- The sovereign’s powers are wide, including making, administering, interpreting, and enforcing laws.
- These powers must be split across three arms to prevent tyranny; each arm provides a check on the others.
Purpose of SOP in Australia:
- Maintain the rule of law.
- Ensure accountability and limit the abuse of power by any single arm.
Definitions (as presented in the notes):
- Judiciary: interprets law and administers justice; checks the other arms.
- Legislature: makes and changes laws;
- Executive: implements laws and runs government agencies.

The Three Arms and Their Roles

The Judiciary

The High Court and other federal courts interpret the law and interpret the Constitution.
Checks on the Executive and Legislature:
- Can strike down laws made by the Legislature.
- Can declare actions of the Executive unlawful.
- Provides a legal process in the courts for individuals to challenge government decisions.
Protections and independence:
- A judge’s pay cannot be reduced while they hold office.
- A High Court Justice can only be removed by the Governor-General after a parliamentary vote in both houses.
- Judges must provide reasons for their decisions; sworn oath to be fair and impartial: "to do right to all manner of people according to law without fear or favour, affection or ill-will".
The High Court is the apex judicial body and is independent and impartial; it can overrule lower courts and declare laws invalid or executive actions unlawful.
Judicial appointments:
- Justices are appointed by the Governor-General on the recommendation of the Prime Minister.
Visualisation: The judiciary sits alongside the executive and legislature as a key check on power.

The Executive

Constitutional provisions:
- The executive power is vested in the Queen and exercisable by the Governor-General as the Queen’s representative.
- The Governor-General’s role includes responsibility for execution and maintenance of the Constitution and Commonwealth laws.
- There shall be a Federal Executive Council to advise the Governor-General; members are chosen and sworn in as Executive Councillors and serve at the Governor-General’s pleasure.
Reality vs. text:
- In practice, the executive power is possessed by the Prime Minister and Cabinet (senior ministers).
- The Prime Minister and Cabinet are not themselves named in the Constitution but exercise the executive power.
What the executive does (in theory vs. reality):
- In theory: Legislature makes law, Executive executes it, and the Judiciary interprets it.
- In practice: Departments conduct service delivery, policy development, and administration; examples include the Australian Taxation Office (ATO), Centrelink, Department of Education, Customs, etc.
Structure of the public service (simplified):
- Minister, Division heads, Department Head (public service), Ministerial Office (political).
Controls and accountability:
- The Governor-General’s reserve powers exist for exceptional circumstances.
- Federal Executive Council acts as the formal mechanism for advice to the Governor-General.

The Legislature (Parliament)

Composition and powers:
- Holds legislative power (Constitution, Part I). The Commonwealth Parliament is bicameral: House of Representatives and Senate.
- States and Territories have their own parliaments as well.
The bicameral Commonwealth Parliament:
- House of Representatives and Senate both participate in the passage of laws; proposed laws (bills) must be considered by both Houses in sequence unless unicameral.
Current composition (illustrative as of the 48th Parliament):
- House of Representatives: $150$ seats; major party distribution example (for context): 94 Australian Labor Party (ALP), 43 Liberal/National Coalition, others including Greens, Centre Alliance, Katter’s Australian Party, etc., with independents making up the rest.
- Senate: $76$ Senators (12 per state, 2 per territory).
- Composition example: 29 Labor, 27 Coalition, 18 Crossbench; 2 undecided.
Other components:
- Shadow Cabinet and Opposition: question government actions; not formal part of the executive but act as a check.
- The Opposition is a check on the Executive and questions government policy and legislation.
- “Parliamentary Supremacy” is a concept: Parliament is democratically chosen and has supremacy in policy making, subject to the Constitution.
Lawmaking process (Commonwealth):
- Bills may be introduced in either House (House or Senate) but must be considered by both Houses in turn.
- Process steps (typical sequence): Draft bill → First reading → Second reading (in-principle debate) → Consideration in detail (amendments) → Third reading; possible reference to Standing Committee or Senate committee; amendments must be agreed to by both Houses → Governor-General assent → Law.
- Federation Chamber exists as a second debating chamber within the House.
Creating Legislation (Qld example):
- Stages include authority to prepare a bill, presentation, first reading, committee consideration, committee report, second reading, consideration in detail, third reading, Royal Assent.

Parliamentary Process and Directly Chosen by the People

Elections and eligibility:
- To vote: must be over 18, be an Australian citizen (not a visa holder), and not serving a sentence of 3 years or more.
- To be elected: must be eligible to vote, not a dual citizen, not treasonist, not an undischarged bankrupt, not holding an “office of profit” under the Crown, and not having a pecuniary interest in any agreement with the Public Service of the Commonwealth.
Parliamentary supremacy vs. constitutional checks:
- Parliament is supreme in democratic terms but remains bound by the Constitution; laws must be compatible with constitutional constraints.

The Two Basic Principles (Judicial Power and Federal Courts)

Principle 1: Judicial power of the Commonwealth cannot be exercised by a body other than a court.
- Supporting cases: Kable v DPP (NSW) (1996) 138 ALR 577; Fardon v A-G (QLD) (2004) 210 ALR 50; State of South Australia v Totani (2010) 242 CLR 1; Wainohu v State of NSW (2011) 243 CLR 181.
Principle 2: Federal Courts cannot Exercise Non-Judicial Powers.
- Supporting case: R v Kirby; Ex parte Boilermakers’ Society of Australia (1956) 94 CLR 254.
Exceptions to Boilermakers doctrine (Judicial role and non-judicial powers):
- Persona designata (appointing a person to perform a specific judicial-like function)
- Contempt power (Cth)
- Military justice
- Example: Wilson v Minister for Aboriginal and Torres Strait Islanders Affairs (1996) 189 CLR 1 (sitting as Federal Court Judge and as ‘reporter’ by Minister for Aboriginal Affairs)

Doctrine, Judicial Activism, and Implied Freedoms

Doctrine of Legalism vs. Judicial Activism:
- Judicial activism concerns whether courts overstep by injecting political ideas; a balance is sought between strict legalism and flexible interpretation.
- Notable quotes from leading Australian jurists (Owen Dixon and Michael Kirby) discuss cautious judicial reasoning and the role of judges in great conflicts.
Implied rights and freedoms:
- The Constitution contains limited express rights; High Court has recognised further rights through implications of the Constitution (doctrines of implied freedoms).
- Examples of implied rights/ freedoms:
- Implied right of access to government (R v Smithers; Ex parte Benson (1912) 16 CLR 99)
- Non-discrimination between sexes (e.g., Ansett Transport Industries v Wardley (1980) 142 CLR 237)
- Implied right to vote (Roach; Rowe)
- Implied freedom of political communication (Lange v Australian Broadcasting Corporation (1997) 189 CLR 250)
- Debate: whether these are judicially activist or legitimate interpretation to protect democratic processes.
Assignment-oriented guidance (implied freedoms):
- Students may discuss implied freedoms in relation to separation of powers and judicial activism arguments; focus on key cases rather than deep formal arguments.

Notable Australian High Court References and Cases in SOP Context

Benbrika v Minister for Home Affairs & Anor [2023] HCA 33 (High Court decision on citizenship and the exclusive judicial function):
- The Court held that s 36D of the Australian Citizenship Act 2007 (Cth) is invalid for purporting to vest in the Minister the exclusive judicial function of punishing criminal guilt, contrary to Ch III of the Constitution.
- The court clarified that punishment of criminal conduct is a judicial function, even if separated from adjudication.
- Contrasted with earlier decisions on s 36B (which targeted revocation of citizenship following conduct) and confirmed limits on executive punitive powers.
NYZQ v Minister for Immigration Citizenship and Multicultural Affairs & Anor [2023] HCA 37 (another HCA decision from 2023 touching on related separations of power and administrative actions).

Practical Implications and Real-World Relevance

Separation of Powers as a framework for governance:
- Ensures accountability and prevents the domination of any single branch of government.
- Creates mechanisms to challenge legality and constitutionality through the courts.
The role of the judiciary in protecting liberties and constitutional rights:
- Maintains constitutional checks and balances by interpreting statutes and the Constitution.
The interaction between democracy and SOP:
- Parliament as the representative body is central to democratic governance, but SOP prevents purely majoritarian rule from bypassing constitutional limits.
Real-world relevance:
- The balance of power affects everyday governance, policy implementation, and rights protections (e.g., implied rights, freedom of political communication).
Ethical and philosophical implications:
- Debates about judicial activism vs. restraint, and the proper scope of courts in political questions.
Numerical summaries and constitutional references to remember:
- $150$ seats in the House of Representatives (Commonwealth)
- $76$ Senators in the Senate (Commonwealth)
- $12$ Senators per State and $2$ per Territory (Senate structure)
- The Constitution references: Section $61$, Section $71$, etc., and Part III establishing the Judicature.

Appendix: Quick Reference to Constitutional Structure (Australia)

The Constitution divides power into three main arms with specific roles:
- Legislature: makes laws; bicameral Parliament (House of Representatives and Senate) at the Commonwealth level; state parliaments for states; elections determine representatives; shadow ministers question the government.
- Executive: carries out laws; in practice led by the Prime Minister and Cabinet; Governor-General represents the Crown; Federal Executive Council provides formal ministerial advice; royal assent is required for laws.
- Judiciary: interprets laws and resolves disputes; High Court as the apex court with constitutional jurisdiction; judges appointed (not elected); tenure and independence protected.
Key constitutional mechanisms:
- Royal assent via the Governor-General (to enact laws).
- Judicial review of legislation and executive actions by the High Court.
- Reserve powers of the Governor-General for exceptional circumstances.
Queensland-specific SOP: some overlaps occur (ministers in Parliament); state Supreme Courts have limited legislative power (e.g., Supreme Court Rules); Chief Justice can act for the Governor in absence (s40 Qld Constitution).
Glossary note: The provided materials reference a glossary for bold/underlined terms and an activity sheet (see Rule of Law posters).