Parliamentary sovereignty, parliamentary supremacy, or legislative supremacy is a concept in constitutional law that applies to some parliamentary democracies. Under parliamentary sovereignty, a legislative body has absolute sovereignty, meaning it is supreme to all other government institutions (including any executive or judicial bodies as they may exist). Furthermore, it implies that the legislative body may change or repeal any prior legislative acts. Parliamentary sovereignty contrasts with most notions of judicial review, where a court may overturn legislation deemed unconstitutional. Specific instances of parliamentary sovereignty exist in the United Kingdom and New Zealand.
Another classic exposition was that of Albert Dicey, in his book Introduction to the Study of the Law of the Constitution (1885):
The doctrine may be summarized in three points:
After the Act of Union of 1707, there was some ambiguity about whether the principle applied in Scotland. It has been suggested that, prior to the Union, parliamentary sovereignty was a principle only of English law, not of Scottish law. Since the Act of Union guaranteed the continuity of the Scottish legal system, some members of the Scottish judiciary maintained the right in theory to rule an Act of Parliament inadmissible. One clear statement of this from the year 1953 was in Lord Cooper's judgment in the case MacCormick v. Lord Advocate. The issue was never been tested, as no Scottish court since 1707 has actually attempted to make such a ruling. But it is now clear that the suggestion that the pre-Union Scottish Parliament was not sovereign is false: see Julian Goodare, "The Government of Scotland 1560-1625" (OUP, 2004), esp. ch.3, and "State and Society in Early Modern Scotland" (OUP, 1999), esp. ch.1, confirming Jeffrey Goldsworthy, "The Sovereignty of Parliament, History and Philosophy" (OUP, 1999), 165-69.
The doctrine of parliamentary supremacy was upheld by Lord Reid in Madzimbamuto v. Lardner-Burke * 1 AC 645:
Such a theory might not, however, work in practice. In 2004, the Government sought to pass the Asylum and Immigration (Treatment of Claimants, etc.) Bill, which contained a comprehensive "ouster clause", which would have excluded judicial review of decisions on applications for asylum. There was uproar among judges and lawyers, and the Lord Chief Justice, Lord Woolf, went so far as to suggest that if the clause were to become law, the courts would simply refuse to apply it. Guardian) With a constitutional crisis looming, the government backed down, and the clause became law in a much-diluted form.
However, in each case, the laws have been structured so that there is no theoretical erosion of parliamentary supremacy. Parliament has the power to abolish or overrule any of the devolved legislatures at its pleasure, although it would be unlikely to do so. The European and British Courts have the authority to declare incompatibility or to annul a law only because of an Act of Parliament, the European Communities Act 1972 which can be repealed by Parliament. Thus, Parliament theoretically remains (almost) entirely sovereign. The qualifier "almost" is provided because in the 1921, after a century of dispute, Parliament passed the Church of Scotland Act 1921 which finally agreed that it does not have sovereignty over the Church of Scotland, the established church in Scotland.
There is a concept in political science of 'legal' and 'political' sovereignty. It can be argued that legal sovereignty has not been lost, because Parliament still retains all its theoretical powers. There are no legal limits on Parliament's sovereignty. However, as it is highly unlikely that the UK would repeal the European Communities Act and leave the EU, and it is unlikely the devolved legislature would be abolished, there are significant political limits on the sovereignty of Parliament. Nevertheless, it remains the case that the UK Parliament could do so without seeking the mutual consent of the EU or the devolved legislatures, as it did with the abolition of the Parliament of Northern Ireland in 1972, and that if it did, these repeals would be legally and politically binding.
This stands in contrast to the Acts of Parliament which have been used to grant independence from the UK to former dominions and colonies in the British Empire. Following the Balfour Declaration, the Statute of Westminster 1931 established a status of legislative equality between the self-governing dominions of the British Empire and the United Kingdom, and provided that Acts passed by the UK Parliament would not apply in the dominions without a dominion's express consent. It is difficult to see how the UK could have resiled from that position later. By way of further example, the UK Parliament passed the Canada Act 1982 which stated that the UK Parliament would no longer be able to amend the Canadian constitution. If the UK parliament were to repeal or amend the Canada Act 1982, it would be unenforceable as Canada is no longer subject to UK sovereignty.
Political science | Politics of the United Kingdom | United Kingdom constitution | Parliamentary procedure
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"Parliamentary sovereignty".
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