enforcer

English Thesaurus

1. one whose job it is to execute unpleasant tasks for a superior (noun.person)

hypernym	:	assistant, help, helper, supporter,
definition	:	a person who contributes to the fulfillment of a need or furtherance of an effort or purpose (noun.person)

derivation	:	apply, enforce, implement,
definition	:	ensure observance of laws and rules (verb.social)

derivation	:	apply, enforce, implement,
definition	:	ensure observance of laws and rules (verb.social)