posse comitatusposse com·i·ta·tus
Origin of posse comitatusMedieval Latin posse comitātūs Medieval Latin posse power, body of men ( from Latin to be able ; see potent . ) comitātūs genitive of comitātus county, territory of a count ; see county .
posse comitatus - Legal Definition
- Power of the county.
- A sheriff may summon citizens to assist him in making an arrest; hence posse in the traditional Old West sense.
- A federal statute prohibiting the Army and Air Force from direct participation in civilian law-enforcement activities.