The Geru Method
Surveillance. Intelligence. Methodology.
The Geru Method is not just a book series; it is a standard in the security industry. This channel is your window into real covert surveillance tactics, explained directly by Col. Doru Geru.
No myths, just field-applicable techniques. Learn the rules so you know when and how to apply them.
👇 Resources & Books: isasurveillancetraining.co.uk/isa-books/3
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