25 CFR 62.7 - Burden of proof.
(a) The burden of proof is on the appellant or sponsor. The appeal should include any supporting evidence not previously furnished and may include a copy or reference to any Bureau or tribal records having a direct bearing on the action.
(b) Criminal penalties are provided by statute for knowingly filing false or fraudulent information to an agency of the U.S. government (18 U.S.C. 1001).