A bill passed by both Houses becomes law once it has received Royal Assent and it has been communicated to Parliament. It will then be an act. Even then, the action can only have a practical effect later. Most provisions of an Act come into force within a certain period of time after Royal Assent (usually two months later) or on a date set by the government. This gives the government and those directly affected by crime time to plan accordingly. The government may need to complete some of the details of the new system by issuing orders or orders within the limits of statutory powers, for example, to deal with procedural matters. Previously, the death of the sovereign automatically signified the end of a parliament, the crown being considered the caput, the principium and finis (beginning, base and end) of the body, but this is no longer the case. The First Amendment took place during the reigns of William and Mary, when it was deemed inconvenient not to have a parliament at a time when the succession to the crown could be contested, and a law was passed providing that a parliament should exist six months after the death of a sovereign, unless: It was dissolved earlier. Under the Representation of the People Act of 1867, Parliament can now continue as long as it otherwise would have in the event of the Sovereign`s death. This is a debate on the main principles of law conducted in the House. A government minister will open the debate by outlining the arguments in favour of the bill and explaining its provisions. The opposition will respond and other members will be free to discuss it. The government will conclude the debate by addressing the points raised.

No changes can be made to the text of the law at this stage, although members can give an idea of the changes they will propose at later stages. At the end of the debate, the House of Representatives will vote on the bill. If the vote is lost by the government, the bill cannot proceed, although it is rare for a government bill to be defeated at this stage. Although it is a royal prerogative, a number of important powers once conferred on the King or Queen are now exercised by the government and especially by the Prime Minister. These are day-to-day administrative powers, but they are strictly limited to ensure that the executive branch cannot usurp parliament or the courts. In the case of the prohibitions of 1607,[179] it was held that the Royal Prerogative could not be used to decide court cases, and in the case of the proclamations of 1610, it was found that new prerogatives could not be created by the executive. [180] It is also clear that no exercise of prerogative can infringe a right under an Act of Parliament. Tenth, the monarch does not have to pay taxes unless the law expressly states so.

[193] Eleventh, by Royal Charter, the executive may establish businesses such as the BBC[194] and franchises for markets, ferries and fishing. [195] Twelfth, the executive has the right to extract precious metals and take treasure.