Debates on Further Constitutional Reform
Aligned to the Pearson Edexcel 9PL0 specification
- Topic
- The Constitution
- Level
- Intermediate
- Reading time
- 21 min
- Published
- 9 September 2026
On this page
- 1.The Three Strands of the Reform Argument
- 2.Completing House of Lords Reform
- 3.How Far Should Electoral Reform Go?
- 4.Devolution to the Nations: How Much Further?
- 5.Devolution in England: How Much Further?
- 6.Human Rights: Keep, Replace or Entrench?
- 7.The Supreme Court: Complete the Separation or Contain It?
- 8.Codification and Entrenchment: The Case For
- 9.Codification and Entrenchment: The Case Against
- 10.Exam Focus: Common Mistakes
Key takeaways
- Content area 1.4 has three strands: how far each reform listed in 1.2 should go further — Lords, electoral reform, devolution, human rights, the Supreme Court — how far to devolve England, and whether to codify.
- House of Lords reform stalled after 1999. As of March 2026 the chamber had over 800 members, no cap on its size and about 22% crossbenchers, so no government holds a Lords majority.
- Codification would clarify the rules and limit executive power, but it would transfer authority to unelected judges, remove the flexibility that let the constitution adapt, and conflict with parliamentary sovereignty.
- Entrenchment is the harder problem: since no Parliament can bind its successors, a codified constitution would need a new rule about sovereignty before it could be protected.
- Electoral reform stalled after the 2011 AV referendum, but Wales adopted a closed proportional list system for the Senedd election of May 2026, giving the UK a live test of proportional representation.
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Key terms
- Codification
- Gathering a state's constitutional rules into a single authoritative document that stands above ordinary law.
- Entrenchment
- Protecting constitutional rules from ordinary amendment by requiring a special procedure, such as a supermajority or a referendum, to change them.
- Bill of rights
- A document setting out the rights citizens hold against the state, which in an entrenched system the government cannot override by ordinary legislation.
- Elective dictatorship
- Lord Hailsham's term for a system in which a government with a secure Commons majority faces few effective checks between elections.
- Quasi-federalism
- A description of a state that behaves like a federation in practice while its legal sovereignty remains undivided at the centre.
Frequently asked questions
Supporters argue codification would set clear limits on executive power, protect rights and make the rules accessible. Opponents argue it would freeze arrangements that currently adapt, hand political decisions to unelected judges, and require the abandonment of parliamentary sovereignty.
There is agreement that an appointed chamber is hard to defend, but none on what should replace it. Every proposal since 1999 has run into the question of whether an elected second chamber would claim its own mandate and challenge the primacy of the Commons.
Codification means gathering the rules into one authoritative document. Entrenchment means protecting them from ordinary amendment. A codified constitution that Parliament could rewrite by simple majority would change how the rules are presented but not how easily they change.
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Devolution in the UK
Parliament: Structure and Functions
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