Here is the video of my DEF CON 26 talk Wagging the Tail - Covert Passive Surveillance and how to make their life difficult.
I would like to thank Peter Jenkins at ISS Training Ltd for the use of some of his images within the talk.
His book, and its excellent content, allowed me to cover some lesser known techniques in covert surveillance that I was unsure were in the public domain and whether I was therefore able to publicly disclose them.
As I point out in my talk, it is impossible to cover the subject in detail in a 45 minute talk and for those that may want to learn more about surveillance I would highly recommend Peter’s book to fill in some of the blanks.
This can be purchased directly from his website