Wyoming Statutes Title 2. Wills, Decedents' Estates and Probate Code § 2-3-915. Judicial control of discretionary powers

(a) A court shall not change a trustee's decision to exercise or not to exercise a discretionary power conferred by this act unless it determines that the decision was an abuse of the trustee's discretion. A court shall not determine that a trustee abused its discretion merely because the court would have exercised the discretion in a different manner or would not have exercised the discretion.

(b) Where a beneficiary elects to challenge an action or nonaction by a trustee or disinterested party under the powers and authority granted in the party under this act, the beneficiary has the burden of establishing, by a preponderance of the evidence, that the actions or nonactions by a trustee or a disinterested party abused the trustee's or the party's discretion. A beneficiary who fails to state a basis or reason for an objection or fails to prove by a preponderance of the evidence the proposed action should be taken or should not be taken shall be liable to all other beneficiaries for damages and costs associated with the objection.