If OHA determines that the probate file received from the agency is incomplete or lacks the certification described in 25 CFR 15.204, OHA may do any of the following:

(a) Request the missing information from the agency;

(b) Dismiss the case and return the probate file to the agency for further processing;

(c) Issue a subpoena, interrogatories, or requests for production of documents as appropriate to obtain the missing information; or

(d) Proceed with a hearing in the case.