| title | ISBN-13 | year of publication |
|---|---|---|
| Law Enforcement Officer: Guidebook for Background Checks and Polygraph Tests | 978-0-9720013-3-5 | 2002 |
| Law Enforcement Officer: Situational & Judgment Questions - Practice Questions & Detailed Explanations | 978-0-9720013-7-3 | 2006 |
| Law Enforcement Officer: Test Preparation Guidebook for Oral Tests & Interviews | 978-0-9720013-2-8 | 2002 |
| Master the Interview: The Ultimate Guide to Law Enforcement Interviewing | 978-0-9720013-6-6 | 2005 |
A. D. · A. P. · C.A. · C. A. D. · C A P · C.D. · C.P. · Ph.D.