The Collaborative International Dictionary of English v.0.48:

Highbinder \High"bind`er\, n.
   A ruffian; one who hounds, or spies upon, another; app. esp.
   to the members of certain alleged societies among the
   Chinese. [U. S.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

highbinder
    n 1: a corrupt politician