He was transferred to the NKVD in November 1938 , when Lavrentii Beria was appointed its head . Dekanozov was the deputy chief of GUGB and at the same time headed both its foreign intelligence and counterintelligence departments from 1938 to 1939 . Dekanozov was responsible for purges of the Red Army as well as for purging Nikolai Yezhov 's supporters from the NKVD
purges
Great Purge
Vladimir Dekanozov