25 CFR §11.1104

1. (a)A minor alleged to be a minor-in-need-of-care may be detained, pending a court hearing, in the following places:
   1. (1)A foster care facility authorized under tribal or state law to provide foster care, group care or protective residence;
   2. (2)A private family home approved by the tribe; or
   3. (3)A shelter care facility operated by a licensed child welfare services agency and approved by the tribe.
2. (b)A minor alleged to be a minor-in-need-of care may not be detained in a jail or other facility used for the detention of adults. If such minor is detained in a facility used for the detention of juvenile offenders, he or she must be detained in a room separate from juvenile offenders, and routine inspection of the room where the minor is detained must be conducted every 30 minutes to assure his or her safety and welfare.