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How does Parliament make law, and what is the meaning and effect of parliamentary supremacy?

Parliamentary law-making: the legislative process through the Houses of Parliament, the influences on Parliament, and the doctrine of parliamentary supremacy and its limits.

Parliamentary law-making for WJEC A-Level Law Unit 1. Covers the legislative process from green and white papers through the Commons and Lords to Royal Assent, the influences on Parliament, and the doctrine of parliamentary supremacy and its qualifications.

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What this dot point is asking

This dot point covers how Parliament makes primary legislation and the constitutional doctrine that underpins it: parliamentary supremacy (sovereignty). You need to describe the legislative process in order, identify the influences that prompt new law, and explain the doctrine of supremacy along with the developments that qualify it. WJEC tests both accurate description of the process and evaluation of where law-making power really lies.

The answer

Types of bill

The legislative process

A bill must complete the same set of stages in both the House of Commons and the House of Lords:

  1. First reading. The bill's title is read out; no debate. It is published.
  2. Second reading. The main debate on the general principle of the bill, followed by a vote. This is the key hurdle.
  3. Committee stage. A committee examines the bill clause by clause and proposes amendments.
  4. Report stage. The House considers the committee's amendments.
  5. Third reading. A final review and vote on the amended bill; only minor changes are possible.

The bill then passes to the other House and repeats the stages. Where the Houses disagree, the bill moves back and forth between them, a process nicknamed "ping-pong".

Influences on Parliament

Parliament does not legislate in a vacuum. The main influences are:

  • The government's manifesto and political programme, which drives most public bills.
  • The Law Commission, the independent body that reviews areas of law and recommends reform.
  • Pressure groups, both sectional (representing an interest) and cause groups (promoting a belief).
  • Public opinion and the media, which can force issues onto the agenda, sometimes leading to rushed "knee-jerk" legislation.

Parliamentary supremacy

Dicey's doctrine has three limbs: Parliament can legislate on any subject, no Parliament can bind its successors, and no court can question the validity of an Act. The doctrine has been qualified in practice:

  • European Union membership allowed UK courts to disapply conflicting Acts (R v Secretary of State for Transport, ex parte Factortame), though this ended with EU withdrawal.
  • The Human Rights Act 1998 lets courts declare legislation incompatible with Convention rights (section 4) but, crucially, not strike it down, preserving supremacy in form.
  • Devolution has transferred wide powers to the Senedd Cymru (Welsh Parliament) and the Scottish Parliament, although Westminster retains the theoretical right to legislate for the whole UK.

Examples in context

The Parliament Acts illustrate where supremacy and democratic legitimacy meet. The Hunting Act 2004 was passed using the Parliament Acts procedure after the Lords resisted, and its validity was upheld in R (Jackson) v Attorney General (2005), confirming that legislation passed by the Commons alone under the Parliament Acts is a valid Act of Parliament. On supremacy's limits, Factortame is the leading illustration: the House of Lords granted an injunction disapplying part of the Merchant Shipping Act 1988 because it conflicted with EU law, something previously thought impossible. With EU withdrawal that particular constraint has fallen away, but devolution and the Human Rights Act remain live qualifications on the orthodox Diceyan picture.

Try this

Q1. Name the three readings a bill passes through in each House. [3 marks]

  • Cue. First reading, second reading and third reading.

Q2. What is the effect of the Parliament Acts 1911 and 1949? [2 marks]

  • Cue. They allow the elected House of Commons to pass certain bills without the Lords' consent after a delay.

Q3. Explain the doctrine of parliamentary supremacy and how far it has been limited. [12 marks]

  • What the marker wants. Dicey's three rules with examples, then the EU (Factortame), HRA 1998 and devolution qualifications, and a conclusion on whether supremacy survives.

Exam-style practice questions

Practice questions written in the style of WJEC exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.

WJEC 201812 marksDescribe the process by which an Act of Parliament is made.
Show worked answer →

An AO1 task rewarding an accurate, ordered account of the legislative process.

Work through the stages in sequence. Pre-legislative: a green paper (consultation) and a white paper (firm proposals) may precede a bill. The bill is then introduced and passes through both Houses.

In each House the stages are: first reading (formal introduction, no debate); second reading (main debate on principle, a vote); committee stage (detailed scrutiny and amendment); report stage (consideration of amendments); third reading (final vote on the amended bill). The bill then goes to the other House and repeats the process.

Explain how disagreement is resolved by bills passing back and forth ("ping-pong"), and note the Parliament Acts 1911 and 1949, which let the Commons ultimately bypass the Lords. Finish with Royal Assent and commencement.

The strongest answers name the type of bill (public, private, private members') and use an example.

WJEC 20208 marksExplain the doctrine of parliamentary supremacy.
Show worked answer →

An AO1 task rewarding a precise account of Dicey's doctrine and its limits.

Define parliamentary supremacy (sovereignty) as the principle that Parliament is the supreme law-making body. Dicey's three rules: Parliament can make or unmake any law; no Parliament can bind its successors; and no body, including the courts, can override or set aside an Act of Parliament.

Then qualify it honestly. Membership of the EU constrained supremacy while it lasted (Factortame), the Human Rights Act 1998 allows declarations of incompatibility but not striking down, and devolution has transferred powers to the Senedd and the Scottish Parliament. These show supremacy is the orthodox theory but is qualified in practice.

Top answers reach a view on whether supremacy remains intact after these developments.

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