Mann et al

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  • Created on: 31-05-12 11:19

Making A Case – How Psychology Can Inform the Investigative Process

Interviewing Suspects


2.1 Detecting Lies


–    After an arrest the purpose of the interview is to collect more evidence in order to establish guilt or innocence.

–    Police officers are trained to look for body language cues.

–    In the USA, polygraph testing is used.


Mann et al. (2004) Police Officers Ability to Detect Suspects’ Lies


Aim of the Study


–    To test police officers ability to distinguish between truths and lies during interviews with


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