Wyoming Statutes

Wyo. Stat. § 1-30-105 (2026)

Writ to be peremptory if right is clear;

✓ current as of May 2026

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alternative writ to issue in other cases.

When the right to require the performance of the act is clear
and it is apparent that no valid excuse can be given for not
performing it, a court may allow a peremptory mandamus. In all
other cases an alternative writ must first be issued on the
allowance of the court, or a judge thereof.

Notes of Decisions

Cited in 5 cases (1 in the last 5 years), 1981–2024 · leading case: Bruce B. Williams v. Laura L. Sundstrom, as Campbell Cnty. Coroner, 2016 WY 122 (Wyo. 2016).

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Bruce B. Williams v. Laura L. Sundstrom, as Campbell Cnty. Coroner, 2016 WY 122 (Wyo. 2016). “§§ 1-30-105 through 106 (LexisNexis 2015).”

Kenneth Carson & Anna Leigh Anderson, as Concerned Parents of Emmitt Merl Anderson & Waverly Jean Anderson, Minor Child. v. Albany Cnty. Sch. Dist. 1 Bd. of Trs. Dr. John Goldhardt, Superintendent of Schs. for Albany Cnty. Sch. Dist. 1 Members of the Wyoming Dep't of Educ. & Megan Degenfelder, Superintendent of Pub. Instruction for the State of Wyoming, 2024 WY 11 (Wyo. 2024). · cites it 6× “” Wyo. Stat. Ann. § 1-30-101 . We have stated: The function of mandamus is to command performance of a ministerial duty which is plainly defined and required by law.”

State Ex Rel. Epp v. Mayor, 894 P.2d 590 (Wyo. 1995). · cites it 2× “When the right to require the performance of the act is clear and it is apparent that no valid excuse can be given for not performing it, a court may allow a peremptory mandamus.”

Wyoming Bd. of Equalization v. State Ex Rel. Basin Elec. Power Coop., 637 P.2d 248 (Wyo. 1981). · cites it 2× “The power to provide such a remedy is authorized by § 1-30-105, W.S. 1977. This section provides: "When the right to require the performance of the act is clear and it is apparent that no valid excuse can be given for not performing it, a court may allow a peremptory mandamus.”

State ex rel. Squaw Mountain Cattle Co. v. Wheatland Irrigation Dist., 728 P.2d 172 (Wyo. 1986). “White, supra; § 1-30-105, W.S.1977. Subsequent to the 1974 decision of this court in Wheat-land Irrigation District v.”

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