39 & 40 Vict. c. 59
(2) When the Judicial Committee sit for hearing appeals from a Court in Ireland, there shall be present not less than four Lords of Appeal, within the meaning of the Appellate Jurisdiction Act, 1876, and at least one member who is or has been a judge of the Supreme Court in Ireland.
(3) A rota of privy councillors to sit for hearing appeals from Courts in Ireland shall be made annually by Her Majesty in Council, and the privy councillors, or some of them, on that rota shall sit to hear the said appeals. A casual vacancy in such rota during the year may be filled by Order in Council.
(4) Nothing in this Act shall affect the jurisdiction of the House of Lords to determine the claims to Irish peerages.
Special provision for decision of constitutional questions.
23.—(1) If it appears to the Lord-Lieutenant or a Secretary of State expedient in the public interest that steps shall be taken for the speedy determination of the question whether any Irish Act, or any provision thereof, is beyond the power of the Irish Legislature, he may represent the same to Her Majesty in Council, and thereupon the said question shall be forthwith referred to and heard and determined by the Judicial Committee of the Privy Council, constituted as if hearing an appeal from a Court in Ireland.
(2) Upon the hearing of the question such persons as seem to the Judicial Committee to be interested may be allowed to appear and be heard as parties to the case, and the decision of the Judicial Committee shall be given in like manner as if it were the decision of an appeal, the nature of the report or recommendation to Her Majesty being stated in open Court.
(3) Nothing in this Act shall prejudice any other power of Her Majesty in Council to refer any question to the Judicial Committee, or the right of any person to petition Her Majesty for such reference.
Lord-Lieutenant and Crown Lands.
Office of Lord-Lieutenant.