Books

This series is addressed to professionals in the field of covert surveillance and related professions: close protection, enforcement, judiciary investigators.

The series includes all the theory on covert surveillance, commented on based on field actions and then in-depth learning of each way of conducting surveillance.The basis of this knowledge is the experience of Col. (Ret.) GERU DORU - Head of Covert Surveillance Unit, who worked in this field for 35 years and who adapted his academic knowledge to the needs of corporate work.