Fitzgerald,Dennis G <br/><br/>
Informants,cooperating witnesses,and undercover investigations  A practical giide to Law,Policy,and Procedure. 

 - 2nd  
 - New york :  CRC press ,  2015. 
 - Prctical aspects of criminal and forensic investigations series. .
<br/><br/><br/>In English. 
<br/><br/><label>ISBN: </label>9781466554580 
<br/><br/><label>Subjects--Index Terms: </label>Law, Forensic science