Section 320
SEC. 320. It shall be lawful for any officer of the customs, including inspectors, or of a revenue cutter, or authorized agent of the Insular Collector, or other person specially appointed for the purpose in writing by the Collector, to go aboard any vessel within the limits of any collection district of the Philippine Archipelago, and to inspect, search, and examine the same, and any person, trunk or envelope on board, and to this end to hail and stop such vessel if under way, to use all necessary force to compel compliance; and if it shall appear that any breach or violation of the laws of the Philippine Islands has been committed, whereby or in consequence of which such vessel, or the merchandise, or any part thereof, on board of or imported by such vessel, is liable to forfeiture, to make seizure of the same or any part thereof, and to arrest, or in case of escape or any attempt to escape, to pursue and arrest any person engaged in such breach or violation.