Keeping it Confidential — Kentucky Law Enforcement
Informant - Wikipedia
Confidential Source Ninety-Six: The Making of America's Preeminent Confidential Informant - Kindle edition by C.S. 96. Professional & Technical Kindle eBooks @ Amazon.com.
What is a confidential informant?
Human Sources - Managing Confidential Informants NEW BOOK COMING SOON — HSM Training and Consultancy