snitcher

from WordNet (r) 3.0 (2006)
snitcher
    n 1: a thief who steals without using violence [syn: {sneak
         thief}, {pilferer}, {snitcher}]
    2: someone acting as an informer or decoy for the police [syn:
       {fink}, {snitch}, {snitcher}, {stoolpigeon}, {stool pigeon},
       {stoolie}, {sneak}, {sneaker}, {canary}]
    

[email protected]