Idaho Code
Idaho Code

Idaho Code § 1-203 (2026)

Original jurisdiction. 

✓ current as of May 2026
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Original jurisdiction. 

Its original jurisdiction extends to the issuance of writs of mandamus, certiorari, prohibition, habeas corpus, and all writs necessary or proper to the exercise of its appellate jurisdiction.

Notes of Decisions
Cited in 11 cases, 1970–2019 · leading case: Coeur d'Alene Tribe v. Lawerence Denney, 387 P.3d 761 (Idaho 2015).
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Coeur d'Alene Tribe v. Lawerence Denney, 387 P.3d 761 (Idaho 2015). · cites it 4× “all filed amicus briefs with this Court opposing the petition for a writ of mandamus.”
Regan v. Denney, 437 P.3d 15 (Idaho 2019). · cites it 2× “V, § 9 ; I.C. § 1-203. Under the Idaho Appellate Rules, "[a]ny person may apply to the Supreme Court for the issuance of any extraordinary writ or other proceeding over which the Supreme Court has original jurisdiction.”
Idaho Falls Redevelopment Agency v. Countryman, 794 P.2d 632 (Idaho 1990). · cites it 4× “As a result of respondents' refusal, the Agency seeks a writ of mandamus to compel them to perform their official duties.”
Erickson v. Idaho Bd. of Reg. of Prof'l Engineers & Prof'l Land Surveyors, 203 P.3d 1251 (Idaho 2009). · cites it 2× “” I.C. § 1-203 (emphasis added). This Court does not need jurisdiction to serve those writs.”
Edwards v. Indus. Comm'n of the State, 943 P.2d 47 (Idaho 1997). · cites it 2× “Article V, § 9 of the Idaho Constitution and Idaho Code Section 1-203 confer on the Supreme Court original jurisdiction to issue writs of mandamus.”
Muench v. Paine, 463 P.2d 939 (Idaho 1970). · cites it 3× “; I.C. § 1-203. In Baker v. Gooding County, 25 Idaho 506 , 138 P.”
Mahler v. Birnbaum, 501 P.2d 282 (Idaho 1972). · cites it 2× “” See also the parallel provision in I.C. § 1-203. 2 . Section 9-1-17 of the municipal code provides: “It shall be unlawful for any person to be found drunk, intoxicated or under the influence of liquor upon any public thoroughfare or any public place.”
Brent Regan v. Lawerence Denney (Idaho 2019). · cites it 2× “V, § 9; I.C. § 1-203. Under the Idaho Appellate Rules, “[a]ny person may apply to the Supreme Court for the issuance of any extraordinary writ or other proceeding over which the Supreme Court has original jurisdiction.”
Coeur d'Alene Tribe v. Lawerence Denney (Idaho 2015). · cites it 2× “all filed amicus briefs with this Court opposing the petition for a writ of mandamus.”
Coeur d'Alene Tribe v. Lawerence Denney (Idaho 2015). · cites it 2× “all filed amicus briefs with this Court opposing the petition for a writ of mandamus.”
Lenaghen v. Smith, 545 P.2d 471 (Idaho 1976). · cites it 2× “5, § 9; I.C. §§ 1-203, 61-627, 61-632; Joy v. Winstead, 70 Idaho 232 , 215 P.”
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