Omaechevarria v. Idaho
Headline: Idaho law upheld that lets the State ban sheep from cattle ranges, protecting cattle grazing areas and allowing criminal penalties for sheep grazing that displaces cattle on public lands.
Holding: The Court upheld Idaho’s criminal law excluding sheep from ranges previously occupied by cattle, ruling the State may enforce such grazing priorities on public lands when Congress has not regulated the subject.
- Allows states to criminally bar sheep grazing on cattle ranges on public lands.
- Protects cattle owners’ prior grazing areas and reduces range conflicts.
- Leaves grazing authority to states where Congress has not set rules.
Summary
Background
A sheep herdsman was convicted under an 1883 Idaho law that forbids anyone in charge of sheep from grazing on ranges previously used by cattle. The law followed earlier local measures aimed at preventing violent clashes between sheep herders and cattle rangers. Much of the grazing described in the case takes place on the federal public domain, where stock graze without formal property rights and without a federal grazing scheme in place.
Reasoning
The Court was asked whether Idaho’s law violated constitutional guarantees of equal treatment and fair legal process or clashed with an 1885 federal law against unlawful occupation of public lands. The opinion said the State may use its police power over the public domain when Congress has not acted on the subject. The Court found the exclusion of sheep reasonable, not arbitrary, and explained the federal 1885 law targeted forcible claims of exclusive occupancy, not state rules that exclude sheep to prevent breaches of the peace. The Court also held the criminal law was not unconstitutionally vague.
Real world impact
The ruling lets Idaho enforce criminal penalties against sheep herders who graze where cattle have customary priority, protecting cattle ranges and reducing violent conflicts on open lands. It leaves ranges open to cattle and other animals where sheep are excluded and recognizes that federal regulation, not state law, would be needed to change that arrangement nationally. The Idaho Supreme Court’s judgment was affirmed.
Dissents or concurrances
Two Justices dissented, but the majority opinion sustained the State’s law and its enforcement in this case.
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