EN
The study deals with an issue that has not yet been processed, which is the concept of operational reconnaissance in the period from the end of the 1950s to the turn of the 1970s and 1980s of the last century. It points to the fundamental relations and consequences of the most serious cases of "detections - betrayals" by members of the Czechoslovak Military Intelligence. These cases significantly affected the build-up of intelligence networks in areas of interest as well as the overall activity of intelligence assets - agents, collaborators, and informants. The Command of the Main Intelligence Directorate of the General Staff of the Czechoslovak People’s Army (ČSĽA) had to react to every such case and decided to develop new concepts of operations of intelligence reconnaissance. All cases of “detections - betrayals” had specific consequences and often significantly limited the activity of military intelligence in some areas of interest.