enforcer

from WordNet (r) 3.0 (2006)
enforcer
    n 1: one whose job it is to execute unpleasant tasks for a
         superior [syn: {hatchet man}, {enforcer}]
    
from The Collaborative International Dictionary of English v.0.48
Enforcer \En*for"cer\, n.
   One who enforces.
   [1913 Webster]
    

[email protected]