Vsevolod Merkulov became his first deputy and the new and final head of GUGB. Organization Between 1934 and 1941, the Main Directorate of State Security went through several organizational changes. In January 1935, there were nine departments in the GUGB structure: (head of GUGB)Commissioner 1st rank of State Security Yakov Agranov Operational Department (headed by) Karl Pauker Special DepartmentGleb Bokii Department of Economics – (ЭКО/EKO)Lev Mironov Special Department – (OO)Mark Gay Secret Political Department – (СПО/SPO)Georgy Molchanov Foreign Department – (ИНО/INO)Artur Artuzov Department of Transport – (ТО)Vladimir Kichkin Department of Information and Statistic – (УСО/USO)Yakov Genkin Staff Department – (OK)Yakov Weynschtok By the end of 1937 the People's Commissar of Internal Affairs Nikolai Yezhov, in his order #00362 had changed the number of departments from five to twelve. (head of GUGB)komkor Mikhail Frinovsky Department 1 [Protection of Government]Israel Dagin Department 2 [Operative]Ans Zalpeter Department 3 [counter-intelligence] (КРО/KRO)Aleksandr Minayev-Cikanovich Department 4 [Secret Political] (СПО/SPO)Mikhail Litvin Department 5 [Special] (OO)Nikolai Nikolaev-Zhuryd Department 6 [Transport] (TO)Mikhail Volkov Department 7 [Foreign (Intelligence)] (ИНО/INO) – Abram Slutsky Department 8 [Records and Statistic] (УСО/USO)Vladimir Cesarsky Department 9 [Special (codes)] (OO)Isaak Shapiro Department 10 [Prison]Yakov Weynschtok Department 11 [Maritime Transportation] (ВО/WO)Victor Yrcev Department 12 [Technical and Operational] (OOT)Semyen Zhukovsky After Lavrenty Beria took over Frinovsky place as a GUGB head, in 29 of September 1938, GUGB underwent another organizational change - (head of GUGB)Commissioner 1st rank of State Security Lavrenty Beria Department 1 – [Protection of Government]Israel Dagin Department 2 – [Secret Political]Bogdan Kobulov Department 3 – [counter-intelligence]Nikolai Nikolaev-Zhuryd Department 4 – [Special] — Pyotr Fedotov Department 5 – [Foreign (Intelligence)]Zelman Passov Department 6 – [Codes] Alexander Balamutov GUGB Investigating Section — (head of GUGB)Commissioner 3rd rank of State Security Vsevolod Merkulov Department 1 – [Protection of Party and Soviet officials] included Political department, 24 office divisions, a school, commandant's offices of the CC VKP(b) and NKVD of USSR Department 2 – [Secret Political] Division 1 [trotskyists, zinovievists, leftists, rightists, miasnikovtsi, shlyapnikovtsi, banned from the party, foreign missions] Division 2 [Mensheviks, anarchists, members of the Socialist Revolutionary Party, bundists, zionists, clerics, provocateurs, gendarmes, counterintelligence agents, punishers, White Cossacks, monarchists] Division 3 [combating Ukrainian, Belarusian, and Ugro-Finnish national ] Division 4 [agent studies on political parties, dashnaks, Turkic-Tatar-Mongolian national , gruzmeks, mussavatists, nationalists] Division 5 [literati, press, publishing, theatres, cinema, art] Division 6 [academies of sciences, science and research institutes, scientific societies] Division 7 [discovery and study of