66.(1) Whoever, being the master of a ship or the pilot of an aircraft arriving at any port in Bangladesh or any one on board such ship or aircraft, knowingly has in his baggage or in his possession or custody, after the postal articles on board or any of them have been sent to the post office at the port of arrival, any postal article within the exclusive privilege conferred on the Government by section 4, shall be punishable with fine which may extend to ¹[five hundred taka] for every such postal article as aforesaid. (2) Whoever, being such master, pilot or other person as aforesaid, detains any such postal article as aforesaid after demand made for it by an officer of the Post Office, shall be punishable with fine which may extend to ²[one thousand taka] for every such postal article.