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On the Street: Non-Verbal Messages

Michael Server

Non-verbal suspect communication during an interview or interrogation could provide a police investigator with basic information that may help determine a suspect’s level of honesty and cooperation. These non-verbal cues can be broken down into several categories, which are not limited to but may include: neuron linguistic assessment, verbal response latency, verbal speed, speech volume changes and physical posturing.

Which Side of My Brain Do You Prefer? Scientists tell us that the human brain is divided in to a right and left hemisphere. In 80% of the population the left side of the brain controls imagination and expression and the right side of the brain controls logical and factual recall. Neuron pathway arrangement, however, is the opposite. As an example, when a suspect is asked a question and he/she looks or gazes to the left he/she is accessing the right side of the brain for a factual (honest) reply. And when a person looks or gazes to the right, after a question, he/she may be suppressing (preparing to lie) or devising a misleading response.

Let Me Think About That or “Who Me?” Verbal response latency – the time it takes for a person to respond to a question – may help determine honesty or deceit. The average person generally responds to a question within .5 to 1.5 seconds. Answers beyond that time frame may be strongly considered unreliable or misleading. Exceptions may include thoughtful, sincere responses to profess innocence or ponderous questions that may reasonably require more time to access memory (i.e. recalling where you were on a specific date). A secondary form of response latency involves a question that is answered with a question. An example would include: “Did you steal the money?” Answer: “Why do you think I would do that?” In both cases the suspect is most likely buying time to formulate a more credible answer or “fishing” to see how much evidence the police actually have against him/her.

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  • Angel_summer_2014_max50

    AKangel

    about 5 years ago

    4986 Comments

    This is also taught in Wicklander Interview and interrogation technicques training. Not just recall but also change in body language when a suspect is answering a question that makes them uncomfortable, What I have seen during my interviews is that if a suspect gets to a question in the interview that they don't want to answer their body will shift and their head will turn.

  • N757696374_1199763_7099_max50

    jmatamoros

    about 5 years ago

    116 Comments

    My pops taught me this. Also this reminds me of the show "Lie to Me". Thats an awesome show.

  • 74596_129289523905506_927477597_n_max50

    CadetAK

    about 5 years ago

    3410 Comments

    This is quite interesting because we just went over the right/left "sides" of the brain in psychology. I'm actually going to print this article out :)

  • Photo_user_blank_big

    agorezar

    about 5 years ago

    140 Comments

    good question AgentNYPD

  • Irishflag_max50

    Murphyx

    about 5 years ago

    1042 Comments

    That refers to their left. But you can't always tell that someone is lying by them looking left or right. Just because they look to their right doesn't mean they're lying.

  • Dsc00204_max50

    waturhandle

    about 5 years ago

    722 Comments

    Learn something new every day.

  • Jiu_jitsu_logo_max50

    AgentNYPD

    about 5 years ago

    126 Comments

    Looking left or right...is that YOUR left and right or theirs??

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