Surveillance was used for all social strata and categories, because none of them was immune from persecution; a priority was that class or category that was considered as potentially dangerous at a given moment. A word, a song, a casual meeting could quite well be considered hostile activity.

A telephone interception list is shown. This list was taken from the archive of the Ministry of Internal Affair. Tirana of the 70’s had about 1,500 family telephones that were given by special authorization from high State bodies. They were given mostly to Nomenclature families or to those who had connections with it or to people who conducted special emergency services. If Security started the prosecution of a Nomenclature member, his telephone was not removed, because it comprised an interception channel.