Question

who were refer to the secret police of Russia

Answer 1

the secret police of Russia was earlier called the Cheka
later it was called NKVD and OGPU

Answer 2

There was a succession of Soviet secret police agencies over time. The first secret police after the October Revolution, created by Vladimir Lenin's decree on December 20, 1917, was called "Cheka" (ЧК). Officers were referred to as "chekists", a name that is still informally applied to people under the Federal Security Service of Russia, the KGB's successor in Russia after the dissolution of the Soviet Union.

For most agencies listed here secret policing operations were only part of their function; for instance, the KGB was both the secret police and the intelligence agency.

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