He worked for the Stasi from 1951, and studied at the college of the Stasi, where he earned a doctorate with a dissertion on "combating hostile tendencies among the youth" (German: Bekämpfung feindlicher Erscheinungen unter Jugendlichen) (the doctorate is not recognized in present-day Germany).
lieutenant was officially renamed the "Office for National Security" on November 17, 1989. Unlike his predecessor, Erich Mielke, he did not hold the title "Minister of State Security", but held the title of "Leader of the Office for National Security". Early developments
Between 1974 and 1986, he was head of Stasi in East Berlin.
In 1986, he was appointed Stasi Lieutenant General and deputy of the Minister for State Security Erich Mielke.
Appointment as the "Leader of the Office of National Security"
During the collapse of the communist regime in the autumn of 1989, both the long-time Head of State of East Germany, Erich Honecker, and the long-time head of the Stasi, Erich Mielke, resigned from their positions. The Stasi was dissolved on March 31, 1990.
After the German Reunification
On March 14, 2006, a discussion of the future of the Stasi museum Gedenkstätte Berlin-Hohenschönhausen was massively disturbed by Schwanitz and 200 Stasi veterans, who attacked victims of the communist regime, mocking them and describing them as "criminal elements". The incident caused a political scandal, and led to harsh criticism against the responsible senator, Thomas Flierl, who had remained silent after the attacks.
In 1950, he became a member of the Society for German-Soviet Friendship (German: Gesellschaft für Deutsch-Sowjetische Freundschaft), and in 1953, of the Socialist Unity Party of Germany, the ruling East German communist party.
Schwanitz has been a leading member of the organisation Gesellschaft zur Rechtlichen und Humanitären Unterstützung, consisting of Stasi veterans who defend the communist regime and the Stasi.
He became a member of the Free German Youth when the German Democratic Republic was founded. Schwanitz was appointed the successor of Mielke as Leader of the Office for National Security and member of the Council of Ministers.