In-depth Notes on the UK Constitution and A.V. Dicey's Twin Pillars

A.V. Dicey and the UK Constitution

  • A.V. Dicey, a prominent scholar, introduced the concept of 'twin pillars' of the UK constitution in his book "Introduction to the Study of the Law of the Constitution" in 1885.
  • The twin pillars are:
    1. Parliamentary Sovereignty
    2. The Rule of Law

Parliamentary Sovereignty

  • Definition: Parliamentary Sovereignty means that

    • The UK Parliament has absolute and unlimited power.
    • It can make or unmake any law without legal constraints.
    • No future Parliament can bind another Parliament (i.e. past Acts can be repealed).

  • Examples:

    • Parliament can legislate on any subject matter (e.g., workers' rights).
    • The courts cannot question the validity of Acts of Parliament, only examine their application through judicial review.
Key Aspects
  1. No legal constraints on law-making: Parliament can legislate on any subject without facing legal obstacles.
  2. No binding of future Parliaments: Each Parliament remains sovereign and can repeal any laws passed by predecessors.
  3. Judicial review as an oversight mechanism: While courts enforce laws, they cannot question an Act's validity.

Erosion of Parliamentary Sovereignty

  • Historical Context: The notion of unqualified Parliamentary Sovereignty has faced challenges due to various factors, notably:
    1. Membership of the European Union: EU law superseded UK law pre-Brexit; the extent of its influence post-Brexit is uncertain.
    2. Human Rights Act 1998: Mandates that public authorities respect human rights. Judges are tasked to interpret laws to align with international human rights standards.
      • If a law contravenes these rights, it can be declared incompatible by judges.
    3. Devolution: Many powers have been decentralized to regions like Wales, Scotland, and Northern Ireland, affecting Parliament's overall sovereignty.
    4. Referendums: The rise of referendums, such as the Brexit vote, suggests a shift towards popular sovereignty, challenging traditional parliamentary dominance.

The Rule of Law

  • Definition: The Rule of Law signifies that every individual is equal before the law and serves as a safeguard against the abuse of power.
Key Components
  1. No sanction without breach: Individuals cannot be punished without having broken the law.
  2. Equality before the law: All individuals have rights derived from the law, emphasizing that no one stands above it.
  3. Governance according to agreed rules: State actions must adhere to established legal frameworks.
Key Tenets of the Rule of Law
  • Developed by Joseph Raz in 1977:
    • Laws must be prospective and not retrospective.
    • Stability in laws is necessary; they shouldn't change frequently.
    • Transparent procedures for law-making.
    • Guarantee of judicial independence.
    • Right to a fair trial for every citizen.
    • Protection of fundamental human rights.
    • Clarity and accessibility of laws are essential.

Judicial Independence

  • Judicial independence is vital for protecting citizens' rights and maintaining the rule of law.
  • The Constitutional Reform Act 2005 emphasized the separation of powers and enhanced the independence of the judiciary by creating the Supreme Court.
  • Through judicial review, courts ensure government actions comply with the law, maintaining equality before the law for all individuals, including government officials.