That is enough to require disqualification. See also United States v. Arnpriester , 37 F.3d 466, 467-68 (9th Cir. 1994) (disqualifying judge who had supervisory responsibility in the United States Attorney's Office for the investigation and prosecution of the crimes at issue), cited in Julien , 47 P.3d at 1198 ; State v. Ellis , 349 Mont. 317, 206 P.3d 564, 564 (2009) ("As Attorney General, McGrath oversaw and approved the filing of all criminal appeals by the State of Montana. We conclude that this oversight and approval constitutes ‘personal and substantial participation’ ...."); In re K.E.M. , 89 S.W.3d 814, 828 (Tex. App. 2002) (recognizing that grounds for a judge's disqualification include "supervisory authority by the judge as prosecutor at the time the case was investigated, prosecuted, or adjudicated over attorneys who actually investigated or prosecuted the same case or a case arising out of the same set of operative facts").