An agent provocateur (French for "inciting agent") is a person who commits, or who acts to entice another person to commit an illegal or rash act or falsely implicate them in partaking in an illegal act. An agent provocateur may be acting out of their own sense of duty or may be employed by the police or other entity to discredit or harm another group (such as a peaceful protest or demonstration) by provoking them to commit a crime, thereby undermining the protest or demonstration as a whole.
In accordance with French grammar, the plural form of the term is, agents provocateurs; a female agent is an agente provocatrice.
To prevent infiltration by agents provocateurs, the organizers of large or controversial assemblies may deploy and coordinate demonstration marshals, also called stewards.
An agent provocateur may be a police officer or a secret agent of police who encourages suspects to carry out a crime under conditions where evidence can be obtained; or who suggests the commission of a crime to another, in hopes they will go along with the suggestion and be convicted of the crime.
A political organization or government may use agents provocateurs against political opponents. The provocateurs try to incite the opponent to do counterproductive or ineffective acts to foster public disdain or provide a pretext for aggression against the opponent.
Historically, labor spies, hired to infiltrate, monitor, disrupt, or subvert union activities, have used agent provocateur tactics.
Agent provocateur activities raise ethical and legal issues. In common law jurisdictions, the legal concept of entrapment may apply if the main impetus for the crime was the provocateur.
The activities of agents provocateur against revolutionaries in Imperial Russia were notorious. Dr. Jacob Zhitomirsky, Yevno Azef, Roman Malinovsky, and Dmitry Bogrov, all members of Okhrana, were notable provocateurs.