Mississippi Code Title 3. State Sovereignty, Jurisdiction and Holidays § 3-5-15

The State of Mississippi shall retain concurrent jurisdiction with the United States in and over such lands which have heretofore been acquired by the United States, or that may be acquired under the provisions of Sections 3-5-13 and 3-5-15, and there is reserved to the state in such lands full civil and criminal jurisdiction concurrently with the federal government in all violations of the state and federal laws, and civil process in all cases, and such criminal process as may issue under the authority of the State of Mississippi against any person charged with the commission of any crime without or within the jurisdiction heretofore acquired by the United States over such lands, may be executed thereon in like manner as before the acquisition of the land by the United States. Power is hereby conferred upon the congress of the United States to pass such laws and to make or provide for the making of such rules of both civil and criminal nature and provide punishment for violation thereof as, in its judgment, may be necessary for the management, control and protection of such lands as have heretofore been acquired by the United States or that may be acquired under the provisions of Sections 3-5-13 and 3-5-15.