OBSERVATION

From OSINT.INFO

Books

Author Issuer Title Published ISBN Tags
JENKINS, PETER Intel Publications Surveillance Tradecraft: The Professional's Guide to Surveillance Training 2010 978-0953537822 OBSERVATION
GLITZA, KLAUS-HENNING Observation - Praxisleitfaden für private und behördliche Ermittlungen 3-415-02961-1 OBSERVATION