Notice from the Daugavpils Division of the Latvian SSR People’s Commissariat for State Security regarding the “compromising materials” of Aleksandrs Čerņavskis. The decision to arrest was made in June 1941 on the basis of such a notice.

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LVA, 1986. f., 2. apr., P-7125.l., 7.-7. o. p. lp.