Wyo. Stat. § 2-2-110: When judge disqualified; exception.

When the judge before whom probate matters are brought is interested as next of kin to the decedent, or as the legatee or devisee under the will, or has any other interest in the outcome of, or concerning the matters brought before him, he shall call in some other district judge to hear and determine all such matters. Being a witness to a will does not itself disqualify a district judge, after the will has been probated, from hearing any matters concerning the will or the estate being probated except matters relating to the admission of the will to probate and contests thereon, and the granting of letters testamentary or of administration thereunder.