25 C.F.R. § 11.1102 Custody.
Title 25 - Indians
A minor may be taken into custody by a law enforcement officer if: (a) The officer has reasonable grounds to believe that the minor is a minor-in-need-of-care and that the minor is in immediate danger from his or her surroundings and that removal is necessary; or (b) A warrant pursuant to §11.1101 of this part has been issued for the minor.
Title 25: Indians
PART 11—LAW AND ORDER ON INDIAN RESERVATIONS
Subpart K—Minor-in-Need-of-Care Procedure
§ 11.1102 Custody.