Section 23

All necessary operations relating to the loading, unloading, carrying, weighing, opening, unpacking, repacking, bulking, sorting and marking of goods or passengers’ baggage in a collection station shall be performed by or at the expense of the owner, importer, exporter, consignor, consignee or agent, as the case may be:Provided that a Federal Superintendent of Customs and Excise may at his discretion direct that any such operation be performed by Federal Customs Officers or by any other person under his control, and in any such case the operation shall be performed at the expense of the owner, importer, exporter, consignor, consignee or agent, as the case may be.