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Back to search resultsThe use of “T”, “S”, “O” and “D” measures. // The 24 March 1977 paper written by Colonel E. Baltinas, deputy head of the Fifth Service of the KGB of the LSSR, about operative-technical services in the counterintelligence process.
The letters “T”, “S”, “O” and “D” stood for the following measures: the instalment of secret TV cameras, filming, the use of video and listening equipment.
Date: 1977-03-24
Country: Lithuania
Archive signature: LYA, F. K-15, ap. 1, b. 759, l. 20-31
Uploaded: 2020-02-25
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