23. Effect of other laws.-(1) The provisions of this Act shall have effect notwithstanding anything inconsistent therewith contained in any enactment other than this Act or any other instrument having effect by virtue of any enactment other than this Act.

(2) Where any act or omission constitutes an offence punishable under this Act and also under any other relevant Act, then the offender found guilty of such offence shall be liable to be punished under that Act which imposes a greater punishment.