6.(1) Where any matter that fails to be prescribed or provided for under this Constitution by an Act of the National Assembly or by any other authority or person, is prescribed or provided for by or under any existing law (including any Decree) or is otherwise lawfully prescribed or provided for immediately before the coming into force of this Constitution, that prescription or provision shall, as from the coming into force of this Constitution, have effect with such modifications, adaptations, qualifications and exceptions as may be necessary to bring it into conformity with this Constitution as if it were made under this Constitution by an Act of the National Assembly or, as the case may be, by the other authority or person. (2) Where, immediately before the coming into force of this Constitution, any existing law had not been brought into force or was to come into force on a date subsequent to the coming into force of this Constitution, the law may be brought into force accordance with its terms, or it shall come into force on such subsequent date, as the case may be, in so far as it is not inconsistent with this Constitution. (3) Subject to subparagraph (4) and to it being consistent with this Constitution in any existing law (a) a reference to the exercise of a legislative function (other than a power to make subsidiary legislation) by the Government or the Armed Forces Provisional Ruling Council shall, after the coming into force of this Constitution, be read as a reference to the exercise of that function by an Act of the National Assembly. (b) A reference to a power to make subsidiary legislation by the Government of the Armed Forces Provisional Ruling Council shall, after the coming into force of this Constitution, be read as a reference to the President or to such Secretary of State or other authority as the President may by Order, Published in the Gazette, direct; and (c) A reference to the exercise of an executive function by the Government, or any function) from other than a legislative function) or power by the Armed Forces Provisional Ruling Council or the Chairman thereof, shall, after the coming into force of this Constitution, be read as a reference to the exercise of that function or power by the President