What perception filters are often applied during interrogations?

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M.P. Ossa | College Teacher | (Level 1) Distinguished Educator

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Perceptual filters consist on all the brain activity that takes place during the process of interrogation, particularly when we are trying to "read" or figure out the personality traits of the witness. These filters are named so because our human tendency is to categorize people through three filters:

  • personal
  • socioeconomical
  • cultural

These three factors disrupt the process of assessing people objectively and may or may not turn an interrogation into a biased questionnaire. Therefore, rather than submit to the tendency of using perceptual filters throughout an interrogation, the agent should, instead, re-think of the witness as an individual and keep the focus on the purpose of the investigation rather than on the individual alone.