See Dicey, 'Law of the Constitution,' pp. 105, 106.
The somewhat complicated principles which govern what is popularly called the right of veto on Bills passed by Colonial Legislatures, are thus stated in the 'Rules and Regulations' published for the use of the Colonial Office, Chapter III., Legislative Councils and Assemblies, Rules 48-55:—
"48. In every Colony the Governor has authority either to give or to withhold his assent to laws passed by the other branches or members of the Legislature, and until that assent is given no such law is valid or binding.
"49. Laws are in some cases passed with suspending clauses; that is, although assented to by the Governor they do not come into operation or take effect in the Colony until they shall have been specially confirmed by Her Majesty, and in other cases Parliament has for the same purpose empowered the Governor to reserve Laws for the Crown's assent, instead of himself assenting or refusing his assent to them.
"50. Every Law which has received the Governor's assent (unless it contains a suspending clause) comes into operation immediately or at the time specified in the Law itself. But the Crown retains power to disallow the Law; and if such power be exercised at any time afterwards, the Law ceases to have operation from the date at which such disallowance is published in the Colony.
"51. In Colonies having Representative Assemblies the disallowance of any Law, or the Crown's assent to a reserved Bill, is signified by Order in Council. The confirmation of an Act passed with a suspending clause is not signified by Order in Council unless this mode of confirmation is required by the terms of the suspending clause itself, or by some special provision in the constitution of the Colony.
"52. In Crown Colonies the allowance or disallowance of any Law is generally signified by despatch.
"53. In some cases a period is limited, after the expiration of which Local Enactments, though not actually disallowed, cease to have the authority of Law in the Colony, unless before the lapse of that time Her Majesty's confirmation of them shall have been signified there; but the general rule is otherwise.
"54. In Colonies possessing Representative Assemblies, Laws purport to be made by the Queen or by the Governor on Her Majesty's behalf or sometimes by the Governor alone, omitting any express reference to Her Majesty, with the advice and consent of the Council and Assembly. They are almost invariably designated as Acts. In Colonies not having such Assemblies, Laws are designated as Ordinances, and purport to be made by the Governor with the advice and consent of the Legislative Council (or in British Guiana of the Court of Policy).