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Index/Topics/Cunningham v. Neagle

Cunningham v. Neagle

A 19th-century Supreme Court decision that established federal-officer immunity from state prosecution when officers act to carry out federal duties.

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Jan 21, 2026

What are the leading Supreme Court cases interpreting Supremacy Clause immunity for federal officers?

’s leading precedent on immunity for federal officers is the 19th‑century decision Cunningham v. (In re) Neagle, which established federal‑officer immunity from state prosecution when officers act to ...

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