10 U.S.C. § 887b

(a) Escape From Correctional Custody .— Any person subject to this chapter— (1) who is placed in correctional custody by a person authorized to do so; (2) who, while in correctional custody, is under physical restraint; and (3) who escapes from the physical restraint before being released from the physical restraint by proper authority; shall be punished as a court-martial may direct. (b) Breach of Correctional Custody .— Any person subject to this chapter— (1) who is placed in correctional custody by a person authorized to do so; (2) who, while in correctional custody, is under restraint other than physical restraint; and (3) who goes beyond the limits of the restraint before being released from the correctional custody or relieved of the restraint by proper authority; shall be punished as a court-martial may direct. (c) Breach of Restriction .— Any person subject to this chapter— (1) who is ordered to be restricted to certain limits by a person authorized to do so; and (2) who, with knowledge of the limits of the restriction, goes beyond those limits before being released by proper authority; shall be punished as a court-martial may direct.