THE OPIUM (WEST PAKISTAN AMENDMENT) ACT, 1957 (W.P. Act XIII of 1957) 28th February 1957 An Act to amend the Opium Act, 1878 Preamble : -- WHEREAS it is expedient to amend the Opium Act, 1878, in its application to the Province of West Pakistan, in the manner hereinafter appearing; It is hereby enacted as follows : -- 1....