Any person who shall give, or offer to give or promise to give any money or thing of value, directly or indirectly, to any officer or employee of the United States in consideration of or for any act or omission contrary to law in connection with or pertaining to the importation, appraisement, entry, examination, or inspection of goods, wares, or merchandise, including herein any baggage, or of the liquidation of the entry thereof, or shall by threats or demands, or promises of any character attempt to improperly influence or control any such officer or employee of the United States as to the performance of his official duties shall, on conviction thereof, be fined not exceeding two thousand dollars, or be imprisoned at hard labor not more than one year, or both, in the discretion of the court; and evidence of such giving, or offering, or promising to give, satisfactory to the court in which such trial is had, shall be regarded as prima facie evidence that such giving or offering or promising was contrary to law, and shall put upon the accused the burden of proving that such act was innocent, and not done with an unlawful intention. (June 10, 1890; sec. 26; Oct. 3, 1913, sec. III, AA.) Any officer or employee of the United States who shall, excepting for lawful duties or fees, solicit, demand, exact or receive from any person, directly or indirectly, any money or thing of value, in connection with or pertaining to the importation, appraisement, entry, examination, or inspection of goods, wares, or merchandise, including herein any baggage, or liquidation of the entry thereof, on conviction thereof, shall be fined not exceeding five thousand dollars, or be imprisoned at hard labor not more than two years, or both, in the discretion of the court. And evidence of such soliciting, demanding, exacting, or receiving, satisfactory to the court in which such trial is had, shall be regarded as prima facie evidence that such soliciting, demanding, exacting, or receiving was contrary to law, and shall put upon the accused the burden of proving that such act was innocent and not with an unlawful intention. (June 10, 1890; sec. 27; Oct. 3, 1913; sec. III, BB.) Liens for freight or general average.