Posse Comitatus
/ˈpɒsi kəˈmɪtætəs/
Definitions
- (n.) A body of citizens summoned to assist law enforcement in maintaining peace or pursuing felons, historically called upon by a sheriff or other legal authority.
The sheriff called forth a posse comitatus to help search for the escaped prisoners.
- (n.) The principle or legal doctrine limiting the use of the federal military in domestic law enforcement matters, especially in the United States under the Posse Comitatus Act (1878).
The Posse Comitatus Act restricts the Army and Air Force from acting as domestic law enforcement without congressional approval.
Related terms
See also
Commentary
Use the term to distinguish between the historical common law concept of citizen aid in law enforcement and the statutory federal limitation on military involvement in civilian policing in the U.S.
This glossary is for general informational and educational purposes only. Definitions are jurisdiction-agnostic but reflect terminology and concepts primarily drawn from English and American legal traditions. Nothing herein constitutes legal advice or creates a lawyer-client relationship. Users should consult qualified counsel for advice on specific matters or jurisdictions.