Pospelov Commission was a commission of the Central Committee of the Communist Party of the Soviet Union Presidium headed by Pyotr Pospelov whose findings had laid the basis and the contents of Nikita Khrushchev 's " secret speech " On the Personality Cult and its Consequences . According to Khrushchev 's speech , " the commission was instructed to inquire into how it was possible to carry out massive repressions against the members and candidate members of the Party elected at the 17th Congress of the All-Union Communist Party "
massive repressions
Great Purge
Pospelov Commission