Written and Unwritten, Codified and Uncodified
Chapter Eight
Syllabus topic 1, "Constitutionalism, Classification of Constitutions"
Pages 34 to 38 of 676
In one line
A codified constitution is contained in one document; an uncodified one is not, and the British constitution is uncodified but very largely written down.
In the wording a student can write in an exam: a constitution is codified when its rules are collected in a single enacted instrument of superior legal force, and uncodified when they are dispersed among statutes, judicial decisions, conventions and practice; the older labels written and unwritten are used for the same distinction but are inaccurate, because much of an uncodified constitution is in writing and part of every codified constitution is not.
Why the labels are confused
Dicey and the nineteenth-century writers spoke of written and unwritten constitutions and meant codified and uncodified. The usage stuck, and it produces a claim that is simply false: that the British constitution is unwritten. Magna Carta is written. The Bill of Rights 1689 is written. The Parliament Acts, the Human Rights Act and the Constitutional Reform Act are all written, printed, and available.
What Britain lacks is not writing. It is a single instrument, enacted at a moment, superior to ordinary law, and alterable only by a special procedure.
Conversely, no codified constitution contains the whole of its own constitution. The American document says nothing about political parties, the cabinet, the seniority system in Congress, the practice of judicial nomination hearings, or the two-term convention that governed the Presidency for a hundred and fifty years before the Twenty Second Amendment. The Indian document says nothing about coalition formation or the office of Leader of the Opposition in the Rajya Sabha.
What the British constitution is made of
Five sources, and every one of them is examinable.
Statutes. Magna Carta 1297 chapter XXIX, still in force in England and Wales, guaranteeing that no free man shall be taken or imprisoned or otherwise destroyed but by lawful judgment of his peers or by the law of the land. The Bill of Rights 1689, of which the ninth article provides that the freedom of speech and debates or proceedings in Parliament ought not to be impeached or questioned in any court or place out of Parliament. The Parliament Acts 1911 and 1949, the Human Rights Act 1998, the Constitutional Reform Act 2005, the Scotland, Wales and Northern Ireland devolution Acts, the European Union (Withdrawal) Act 2018, and the Dissolution and Calling of Parliament Act 2022.
The royal prerogative. The residue of the discretionary authority of the Crown, exercised in practice by ministers: the conduct of foreign affairs, the deployment of the armed forces, the grant of pardons, and, since 2022, the dissolution of Parliament.
The common law. Entick v. Carrington, (1765) 19 St Tr 1029, is a common law decision and is as much part of the constitution as any statute.
Written and Unwritten, Codified and Uncodified
Conventions. Treated in the whole of topic 2.
Works of authority. Erskine May on parliamentary practice, Dicey, Bagehot. These are not law and are treated as evidence of what the practice is.
Does the absence of a code matter?
Three consequences follow, and they are what a comparative answer should say.
First, no hierarchy of laws, until the courts made one. In an uncodified system every Act has the same status, and a later Act impliedly repeals an earlier inconsistent one. That principle was modified in Thoburn v. Sunderland City Council, [2002] EWHC 195 (Admin), where the Divisional Court held that there are classes of legislative provision which cannot be repealed by mere implication, and that the European Communities Act 1972 was a constitutional statute of that kind. Which statutes are constitutional is a question for the courts, "to which the scope and nature of Parliamentary sovereignty are ultimately confided".
Second, constitutional change by ordinary majority. The House of Lords Act 1999 removed most hereditary peers; the Constitutional Reform Act 2005 created a Supreme Court and reformed the office of Lord Chancellor; the Fixed-term Parliaments Act 2011 removed the prerogative of dissolution and the Dissolution and Calling of Parliament Act 2022 restored it. Each of these would be a constitutional amendment anywhere else.
Third, uncertainty. Nobody could say with confidence in 2019 whether the courts would review a prorogation. The answer came from R (Miller) v. The Prime Minister, [2019] UKSC 41, and it was not obvious in advance.
A worked example
A government wishes to abolish the second chamber of the legislature.
In the United Kingdom an Act of Parliament suffices, and if the House of Lords refuses to pass it, the Parliament Acts procedure can be used to pass it without them after the delay in section 2 of the 1911 Act as amended by the 1949 Act. There is no legal obstacle.
In Canada it cannot be done at all except by the unanimous consent procedure. In Reference re Senate Reform, 2014 SCC 32, decided on 25 April 2014, the Supreme Court of Canada held that abolition falls under section 41, requiring resolutions of the Senate, the House of Commons and the legislative assembly of every province.
In India abolition of the Rajya Sabha would require an amendment under article 368 ratified by the legislatures of not less than one half of the States, because it would change article 80 and the representation of States in Parliament, and it would face a basic structure challenge on federalism.
The cases
Facts. Thoburn v. Sunderland City Council, [2002] EWHC 195 (Admin), [2003] QB 151, was a prosecution of market traders who sold goods in imperial units. They argued that the Weights and Measures Act 1985, being later, had impliedly repealed the European Communities Act 1972 so far as it required metric units.
Written and Unwritten, Codified and Uncodified
Held, by Laws LJ and Crane J. The common law had created exceptions to the doctrine of implied repeal, "a doctrine which was always the common law's own creature". There are now classes or types of legislative provision which cannot be repealed by mere implication, and the European Communities Act is a constitutional statute of that class. Which statutes are constitutional is for the courts, to which the scope and nature of parliamentary sovereignty are ultimately confided.
Why it matters here. It shows an uncodified constitution growing a hierarchy of laws by judicial decision, which is precisely the work a codified constitution does by its own terms.
Facts. Reference re Senate Reform, 2014 SCC 32, decided on 25 April 2014, was a reference by the Governor in Council asking whether Parliament could unilaterally introduce consultative elections for senators, impose term limits, and abolish the Senate.
Held, by the Court, unanimously. It could not. Part V of the Constitution Act 1982 provides four categories of amending procedure, of which the general one is the 7/50 procedure under section 38 complemented by section 42, requiring a substantial degree of consensus between Parliament and the provincial legislatures; the unanimous consent procedure under section 41 covers the listed matters, and abolition of the Senate falls within it.
Why it matters here. It is the exact opposite of the British position on the same question, and the pair makes the codified/uncodified distinction concrete rather than definitional.
Distinctions
| Codified | Uncodified | |
|---|---|---|
| Form | One enacted instrument | Statutes, cases, prerogative, conventions, practice |
| Superior force | Yes, and inconsistent law is void | No, subject to Thoburn |
| Amendment | Special procedure | Ordinary Act of Parliament |
| Certainty | Higher; the text can be read | Lower; the practice must be found |
| Flexibility | Lower | Higher |
| MU's seven | India, USA, Switzerland, Germany, Ireland; Canada partly | United Kingdom |
| Written | Unwritten | |
|---|---|---|
| What it should mean | Reduced to writing in some form | Not written down at all |
| What it is used to mean | Codified | Uncodified |
| Why the usage misleads | The British constitution is largely written | Every codified constitution has unwritten conventions |
What beginners get wrong
"The British constitution is unwritten." Say uncodified. If you must say unwritten, say at once that a great deal of it is in writing and give two statutes.
"Canada is uncodified like Britain." Canada is a defined set of enacted instruments, listed in section 52(2) of the Constitution Act 1982, with a supremacy clause and entrenched amending procedures. It is codified in more than one document, which is not the same thing.
Written and Unwritten, Codified and Uncodified
"An uncodified constitution has no constitutional law." It has a great deal, and Miller No 1, Miller No 2, Jackson and Thoburn are four leading modern examples in fifteen years.
Limits and criticism
The distinction is one of degree. Israel has Basic Laws that are constitutional in force and were enacted separately over decades; New Zealand has a Constitution Act 1986 that is not entrenched.
Codification does not settle meaning. The American document is short and the disagreements about it are enormous.
Uncodified systems can be more rights-protective in practice than codified ones. The comparison must be with how a system behaves, not with its form.
Quick revision
- Codified means one instrument of superior force; uncodified means dispersed. Written and unwritten are the older, inaccurate labels for the same distinction.
- The British constitution: statutes, prerogative, common law, conventions, works of authority.
- Bill of Rights 1689 article 9: freedom of speech and debates in Parliament not to be impeached or questioned in any court.
- Thoburn v. Sunderland City Council, [2002] EWHC 195 (Admin): constitutional statutes cannot be impliedly repealed.
- Reference re Senate Reform, 2014 SCC 32: abolition of the Senate needs unanimous provincial consent under section 41.
- Consequences of no code: no hierarchy of laws by default, change by ordinary majority, and uncertainty.
- Canada is codified in several instruments, listed in section 52(2) of the Constitution Act 1982.
Test yourself
1. "The British constitution is unwritten." Correct the statement and justify the correction. It is uncodified, not unwritten. Magna Carta 1297, the Bill of Rights 1689, the Parliament Acts 1911 and 1949, the Human Rights Act 1998 and the Constitutional Reform Act 2005 are all written and all constitutional. What Britain lacks is a single instrument of superior legal force alterable only by a special procedure.
2. What did Thoburn change, and why is it significant for the classification? It held that constitutional statutes are immune from implied repeal, so an ordinary later Act does not displace them unless it says so expressly. That gives an uncodified constitution something a codified one has by definition, a hierarchy of laws, and it locates the power to decide which statutes are constitutional in the courts.
3. Compare the abolition of a second chamber in the United Kingdom, Canada and India. In the United Kingdom an ordinary Act suffices, and section 2 of the Parliament Act 1911 as amended even provides a route without the Lords' consent. In Canada abolition needs unanimous consent under section 41 of the Constitution Act 1982: Reference re Senate Reform. In India it needs an amendment under article 368 ratified by half the State legislatures, and would face a basic structure objection on federalism.
Written and Unwritten, Codified and Uncodified
4. Name two things that are part of a codified constitution's working arrangements but appear nowhere in its text. In the United States, political parties and the President's cabinet, neither of which is mentioned in the 1787 document; the two-term limit was also purely conventional until the Twenty Second Amendment. In India, coalition formation and the position of the Leader of the Opposition are governed by practice and by ordinary law rather than by the Constitution.
The rest of this subject
These notes are cut from the University's printed syllabus. Open the syllabus itself, or the past papers, for the same subject.