HVA Division A X (Abteilung A X) – Active measures in the Federal Republic of Germany (including West Berlin) Division A VII (Abteilung A VII) – analysis and Information Division A IX (Abteilung A IX) – penetration of enemy intelligence services in the Federal Republic of Germany and counterintelligence within the HVA Horst Vogel – First Deputy Chief of the HVA (since 1989) and Chief of the Science and Technology Sector (since 1975), Generalmajor (since 1987) Department 5 (Referat 5 / SWT) – the work group of the Deputy Chief of the STS Matthias Warnig Work Group 1 / STS (Arbeitsgruppe 1 / SWT) – officer-residents abroad working in line of the STS Work Group 3 / STS (Arbeitsgruppe 3 / SWT) – operational acquisition of defence materiel Work Group 5 / STS (Arbeitsgruppe 5 / SWT) – exploitation of official channels Division A V (STS) (Abteilung A V (SWT)) – analysis for the STS Division A VIII (STS) (Abteilung A VIII (SWT)) – operational technology, signals equipment Division A XIII (STS) (Abteilung A XIII (SWT)) – fundamental studies Division A XIV (STS) (Abteilung A XIV (SWT)) – electronic, optics, digital data processing Division A XV (STS) (Abteilung A XV (SWT)) – military technology, mechanical engineering Division A XX (STS) (Abteilung A XX (SWT)) – data processing and computing center Heinz Geyer – Deputy Chief of the HVA (since 1977) and Chief of Staff (since 1982), Generalmajor (since 1985) Staff of the HVA (Stab der HVA) Work Group XV / BV (Arbeitsgruppe XV / BV) – coordination center for the Divisions XV (the district departments (BezirksVerwaltungen, hence BV) of the Stasi also fielded intelligence departments. They carried the designation Division XV and were coordinated by this work group). Before expanding to the status of an autonomous super-department (the HVA as a whole) the external intelligence department of the Stasi was called Division XV, so the territorial units have retained this designation. Division A XVII (Abteilung A XVII) – border closure Division A XXI (Abteilung A XXI) – rear services, administration and finances Division A VI (Abteilung A VI) – operational travel movement (movement of intelligence officers under the guise of tourism) Werner Prosetzky – Deputy Chief of the HVA (since 1983), Generalmajor (since 1984) Division A III (Abteilung A III) – legal officer-residents in Western countries other than the Federal Republic of Germany Division A XIX (Abteilung A XIX) –