UK's Constitution: The Rule of Law and Parliamentary Sovereignty

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Parliamentary sovereignty, a core principle of the UK's constitution, essentially states that the Parliament is the ultimate legal authority, which possesses the power to create, modify or end any law. The judiciary cannot question its legislative competence, and a Parliament is not bound by former legislative provisions of earlier Parliaments. The ‘rule of law’ on the other hand, is a constitutional doctrine which primarily governs the operation of the legal system and the manner in which the powers of the state are exercised. However, since the Parliament is capable of making any law whatsoever, the concept of the rule of law poses a contradiction to the principle of parliamentary supremacy, entailing that Parliament is not bound by the Rule of Law, and it can exercise power arbitrarily.

The case of Jackson v Attorney General scrutinised the relationship between the rule of law and parliamentary sovereignty in a fresh manner, suggesting that there were restrictions to sovereignty where constitutional fundamentals were at risk . The courts were asked to examine whether the Hunting Act 2004 and Parliament Act 1949 were legal Acts of Parliament, on procedural grounds. It was argued that they did not comply with the legislative requirements mentioned in the Parliament Act 1911, and hence were invalid. Under the Act, it was an offence to hunt wild mammals with dogs except within limited conditions. The Bill was passed using a process under the Parliament Acts of 1911 and 1949, without the approval of the House of Lords.

Refusing to make the declaration, the House of Lords upheld that the 1949 Act has been sanctioned validly using the 1911 Act, and that the Hunting Act had been approved using the modified process. It was affirmed...

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... idea of Parliamentary Sovereignty: The Controlling Factor of Legality in the British Constitution’ (2008) OJLS 709.

T Mullen, 'Reflections on Jackson v Attorney General: questioning sovereignty' (2007), per Lord Hope.

Ibid at [159] per Baronnes Hale.

Ibid at [102] per Lord Steyn.
Larkin, ‘Debunking the idea of Parliamentary Sovereignty: The Controlling Factor of Legality in the British Constitution’ (2008) OJLS 709 2, p 61.

H W R Wade ‘The Basis of Legal Sovereignty’ (1995) 172 Cambridge Law Journal 186.

T Bingham, The Rule of Law (Allen Lane, London, 2010), p 162-165.

Ibid, p 168.

R v Secretary of State for Transport, ex parte Factortame Ltd and others [1999] All ER (D) 1173.

Jackson v Attorney General [2005] at [102] per Lord Steyn.

A V Dicey, Introduction to the Study of the Law of the Constitution (10th ed 1964) 40.

Ibid, p 114.

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