Simon Coffey; Dennis G. Fitzgerald <br/><br/>
Informants, Cooperating Witnesses, and Undercover Investigations  A Practical Guide to Law, Policy, and Procedure, Second Edition 

 -  Taylor and Francis  2014 
<br/><br/><label>ISBN: </label>9780429253805 
<br/><br/><label>Source: </label>EBOOK