Section 12

12. Any persoh convicted of an offence under Punishmerlt ~ ~ ~ ~ section eleven, after having been previously convicted of an offence under that section or any enactment convictions. hereby repealed, shall be punished with' iinprisonmcnt which may extend to six months, in addition to the punishment mrllich may be inflicted for a first offence under section eleven, and evelay such person shall, upon every subsequent conviction of an offence under section eleven, be liable to imprisonment for a term which may extend to six months, in addition to any tern1 of imprisonment to which he was liable at his last previous conviction. `13.` A charge of an offence under section eleven Chal.ga to be shall not be entertained except on the complaint of prdewcd customsthe Collectoi. or other customs-officer not infcrior in of&er. rank to a Sub-Assistant Patrol, and no such complaint shall be admitted unless Limitntion of it be preferred mitllill six months after the commistime for sion of the offence to which it refers. An offence under section eleven shall be tried by Jurisdiction. a Magistrate exercising powers not less than ihose of a Magistrate of the second class.