SEC. 3. _And be it further enacted_, That if any person shall within the limits of the United States fit out and arm or attempt to fit out and arm, or procure to be fitted out and armed, or shall knowingly be concerned in the furnishing, fitting out and arming of any ship or vessel with intent that such ship or vessel shall be employed in the service of any foreign prince, State, colony, district or people, to cruise or commit hostilities against the subjects, citizens or property of any foreign prince, State, or any colony, district or people with whom the United States are at peace, or shall issue or deliver a commission within the territory or jurisdiction of the United States for any ship or vessel to the intent that she may be employed as aforesaid, or shall have on board any person or persons who shall have been enlisted, or shall have engaged to enlist or serve or shall be departing from the jurisdiction of the United States with intent to enlist or serve in contravention of the provisions of this act, every person so offending shall be deemed guilty of a misdemeanor, and shall, upon conviction thereof, be punished by a fine not exceeding $3,000, and imprisonment not exceeding three years, or either of them, at the discretion of the Court in which such offender shall be convicted; and every such ship and vessel, with her tackle, apparel and furniture, together with all materials, arms, ammunition and stores which may have been procured for the building and equipment thereof, shall be forfeited to the United States of America. SEC. 4. _And be it further enacted_, That it shall be lawful for any Collector of the Customs who is by law empowered to make seizures for any forfeiture incurred under any of the laws of Customs, to seize such ships and vessels in such places and in such manner in which the officers of the Customs are empowered to make seizures under the law for the collection and protection of the revenue, and that every such ship and vessel, with the tackle, apparel and furniture, together with all the materials, arms, ammunition and stores which may belong to or be on board such ship or vessel, may be prosecuted or condemned for the violation of the provisions of this act in like manner as ships or vessels may be prosecuted and condemned for any breach of the laws made for the collection and protection of the revenue.