consultation with the Attorney General, by statutory order, determine. 136. Administrative functions of the Deputy Chief Justice. (1) Subject to the provisions of article 133 of this Constitution, the Deputy Chief Justice shall— (a) deputise for the Chief Justice as and when the need arises; (b) be the head of the Court of Appeal and in that capacity assist the Chief Justice in the administration of that court; and (c) perform such other functions as may be delegated or assigned to him or her by the Chief Justice. (2) (a) (b) (c) Where— the office of the Deputy Chief Justice is vacant; the Deputy Chief Justice is acting as Chief Justice; or the Deputy Chief Justice is for any reason unable to perform the functions of his or her office, then, until a person has been appointed to and has assumed the functions of the office of the Deputy Chief Justice, those functions shall be performed by a justice of the Supreme Court or a justice of Appeal designated by the President, after consultation with the Chief Justice, or the acting Chief Justice, as the case may be. The constitutional court. 137. Questions as to the interpretation of the Constitution. (1) Any question as to the interpretation of this Constitution shall be determined by the Court of Appeal sitting as the constitutional court. (2) When sitting as a constitutional court, the Court of Appeal shall consist of a bench of five members of that court. (3) (a) A person who alleges that— an Act of Parliament or any other law or anything in or done under the authority of any law; or (b) any act or omission by any person or authority, is inconsistent with or in contravention of a provision of this Constitution, may petition the constitutional court for a declaration to that effect, and for redress where appropriate.