Section 322
SEC. 322. Any of the officers or persons authorized to board or search vessels may stop, search, and examine, within the limits of an any collection district of the Philippine Archipelago, any vehicle, beast, or person on which or whom he or they shall suspect there is merchandise which is subject to duty or shall have been introduced into the Philippine Islands in any manner contrary to law, whether by persons in possession or charge, or by, in, or upon such vehicle, beast, or person, or otherwise, and to search any trunk, envelope, or person, wherever found, in which he may have reasonable cause to suspect there is merchandise which was imported contrary to law and if any such officer or other person so authorized shall find any merchandise on or about any such vehicle, beast, or person, or in any trunk or envelope, which he shall have reasonable cause to believe is subject to duty, or to have been unlawfully introduced into the Philippine Islands, whether by the person in possession or charge, or by, in, or upon such vehicle, beast, or person, or otherwise, he shall seize and secure the same for trial, and in such case the officer shall arrest the person in whose custody such vehicle or beast, trunk or envelope, is found, and cause due prosecution to be instituted against such person, in case he shall have reasonable ground to believe that such person was knowingly engaged in the violation of the provisions of this Act.