East German Ministry of State Security, 'New Methods of Operation of Western Secret Services'
Assessment by the Stasi of changes to operations made by the main Western secret services in response to Khrushchev's November 1958 diplomatic note to the United States, Britain, and France demanding an end to the occupation of West Berlin.
January 09, 1962
East German Ministry of State Security, 'Brief Assessment of the Investigation Results Achieved in 1961 in Work on Crimes of Espionage'
Assessment by the Stasi of the espionage of the main Western secret services in East Germany based on its investigation of cases of spying in 1961.
February 15, 1985
Ministry of State Security (Stasi), Order Number 1/85
This order from the Ministry of State Security describes the tasks of the MfS units concerning efforts to uncover intentions of aggression and surprise military activities by western states and their allies, especially a surprise nuclear missile attack against the USSR.