N.D. Cent. Code § 54-01-08

Jurisdiction is ceded to the United States over any tract of land that may be acquired by the United States on which to establish a military post. Legal process, civil and criminal, of this state, extends over all land acquired by the United States to establish a military post in any case in which exclusive jurisdiction is not vested in the United States, and in any case where the crime is not committed within the limits of such reservation.