Resolution of the Central Committee of the C.P.S.U.[B.], September 29, 1936

"It is the task of every Party organization to increase Bolshevik vigilance to the utmost, to hold aloft the banner of the Leninist Party, and to safeguard the ranks of the Party from the penetration of alien, hostile and adventitious elements." (Resolution of the Central Committee of the C.P.S.U.[B.], September 29, 1936, published in Pravda No. 270, 1936.)