Sd Specialist – Surveillance Detection.
Sd Specialist – The Surveillance Detection Manual, is a Counter Terrorism Surveillance Detection Training Manual, written by Dan Sommer. It is the best Sd Program available to the civilian sector anywhere.
Sd Specialist – Surveillance Detection.
Treasure Hunting Metal Detecting Expo
A complete how to guide to metal detecting and discovering lost treasure from the beach and water. Sections include hunting the dry beach, shallow surf, wading, scuba and shipwreck detecting. Vlf, pulse induction and multi frequency metal detectors.
Treasure Hunting Metal Detecting Expo