| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Informants and Undercover Investigations: A Practical Guide to Law, Policy, and Procedure | 978-0-8493-0412-5 (0-8493-0412-1) | 2007 |
| Informants, Cooperating Witnesses, and Undercover Investigations: A Practical Guide to Law, Policy, and Procedure, Second Edition | 978-1-4665-5458-0 (1-4665-5458-4) | 2014 |
D.F. · D Fitzgerald · D G · Dennis G · G *** F · G. Fitzgerald