Vigilantism
Civilian who undertakes law enforcement without legal authority / From Wikipedia, the free encyclopedia
"Vigilante" redirects here. For other uses, see Vigilante (disambiguation).
Not to be confused with lynching.
Vigilantism (/vɪdʒɪˈlæntɪzəm/) is the act of preventing, investigating, and punishing perceived offenses and crimes without legal authority.[1][2]
A vigilante is a person who practices or partakes in vigilantism, or undertakes public safety and retributive justice without commission.