arm of the law, armed band, band, band of armed men, band of men armed with legal authority, body of men armed with legal process, body of men summoned by a sheriff, civilian police, custodians of the law, detachment of police, detail, force armed with legal authority, group of deputies, group of persons organized with legal authorization, law enforcement body
Burton's Legal Thesaurus. William C. Burton. 2006
=>> in posse.
Webster's New World Law Dictionary. Susan Ellis Wild. 2000.