Turkish intelligence agents are trying to gather information on the uranium mining in southwest Bulgaria. They believe that the extracted deposits are shipped to the Soviet Union for further processing and production of nuclear bombs.

BCP CC’s First Secretary, Vulko Chervenkov, approves Interior Minister Georgi Tsankov’s recommendations for improving the performance of the intelligence and counter-intelligence services.

This intelligence report discusses the domestic political developments in Poland after the ascent of Wladyslaw Gomulka to the top of the Polish United Workers' Party (PZPR).The events surrounding the Hungarian Revolution of 1956 are also mentioned.

A report focused on the Turkish and Greek intelligence activities in Bulgaria. The report outlines the major areas of interest – the Bulgarian military infrastructure, economic development, and the Communist party leadership. The report also talks about the role of the Turkish diplomatic representatives in encouraging repatriation of Turkish-Bulgarians to Turkey.

This protocol resulted from a meeting between the Czechoslovak interior ministry and Soviet border troop representatives. The two parties convened to coordinate public safety measures undertaken in protection of the Czechoslovak-Soviet border.

A report by the Deputy Minister of Internal Affairs, Mircho Spasov, on the Ministerial Meeting in Bucharest of delegations from Romania, Bulgaria, Czechoslovakia, Hungary, and the Soviet Union. The meeting called for focusing on preventing subversive acts of Western intelligence, improving exchange of information, and conducting joint operations.

List of 47 paramilitary actions conducted or planned by the French Service Action between January 1956 and Summer 1958.

Authorization request to eliminate an organizer of a French legion deserters organization, Schulz Lesum, in Tetouan, Morocco.

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.

The KGB and the Interior Ministry of the Czechoslovak Republic met to discuss article 8 of the Treaty between the governments of the USSR and CSSR on the broadcast of Soviet specialists in the CSSR and Czechoslovak specialists in the USSR for the purpose of providing technical help and various services. Payment for services rendered is discussed.

This convention was drawn up by both parties based on article 12 of the Convention between the governments of the USSR and Czechoslovak Socialist Republic. It concerns government-owned, high-frequency telephone lines connecting Moscow and Prague. Technical specifications are laid out, as are ways to ensure the confidentiality of information relayed along these telephone lines.

A report on the visit that had to improve exchange of information between the two intelligence agencies.

The memo focuses on the operations of the French intelligence services in Bulgaria during the late 1950s.

The report covers the work of Bulgarian intelligence operatives in the West for the last 18 months. Includes statistics by country.

A report to the CC CPSU on six American "Discoverer" model satellites with speculation about the satellites' military or surveillance purposes.

Report outlining the need to organize systematic observation of newly launched American "Discoverer" satellites to determine their orbit and radio frequencies.

Shelepin sets out a plan to discredit CIA chief Allen Dulles.

Shelepin reports on intelligence claiming that US scientists have developed a method to disrupt the guidance of Soviet missiles during launch.

Ustinov analyzes reports that American scientists have developed a method for disrupting the guidance systems on Soviet missiles and concludes that this is not possible.

The Ministry of Internal Affairs reports its intelligence findings on the activities of the Yugoslav intelligence services against Bulgaria. Working both from home and in-country, the Yugoslav intelligence is allegedly trying to gather information on a broad set of issues – ranging from trade relations within Comecon, to Bulgaria’s military capacity and its potential to pose a threat to Yugoslav Macedonia.