[3] In the story of Nineteen Eighty-Four, the Thinkpol (Thought Police) are responsible for the detection and elimination of thoughtcrime, and for the social control of the populations of Oceania, by way of audio-visual surveillance and offender profiling.
"[5] Such surveillance methods allowed the Thinkpol and the Ministry of Love (Miniluv) to become universally feared by the citizens of Oceania, especially by the members of the Outer Party, which includes Winston Smith.
In the Newspeak vocabulary, the word crimestop denotes the citizen's instinctive desire to rid himself of unwanted, incorrect thoughts (personal and political), the discovery of which, by the Thinkpol, would lead to detection and arrest, transport to and interrogation at Miniluv (Ministry of Love).
The protagonist, Winston Smith, describes crimestop as a conscious process of self-imposed cognitive dissonance: The mind should develop a blind spot whenever a dangerous thought presented itself.
It includes the power of not grasping analogies, of failing to perceive logical errors, of misunderstanding the simplest arguments if they are inimical to Ingsoc, and of being bored or repelled by any train of thought which is capable of leading in a heretical direction.