25 C.F.R. § 15.12
What happens if assets in a trust estate may be diminished or destroyed while the probate is pending?
(a) This section applies if an interested party or BIA:
(1) Learns of the death of a person owning trust or restricted property; and
(2) Believes that an emergency exists and the assets in the estate may be significantly diminished or destroyed before the final decision and order of a judge in a probate case.
(b) An interested party, the Superintendent, or other authorized representative of BIA has standing to request relief.
(c) The interested party or BIA representative may request:
(1) That OHA immediately assign a judge or ADM to the probate case;
(2) That BIA transfer a probate file to OHA containing sufficient information on potential interested parties and documentation concerning the alleged emergency for a judge to consider emergency relief in order to preserve estate assets; and
(3) That OHA hold an expedited hearing or consider ex parte relief to prevent impending or further loss or destruction of trust assets.