32 CFR § 516.9 - Service of criminal process within the United States.
(a) Surrender of personnel. Guidance for surrender of military personnel to civilian law enforcement officials is in Chapter 7 of AR 630-10 and AR l90-9. Army officials will cooperate with civilian law enforcement authorities who seek the surrender of a soldier in connection with criminal charges. Special rules apply when a bail bondsman or other surety seeks custody of a soldier.
(b) Requests for witnesses or evidence in criminal proceedings. See subpart G to this part.