Aim: Police officers ability to distinguish truth and lies during interviews with suspects.
Procedure: The pp's task was to judge the truthfulness of people in real life police interviews. At the begining they filled a questionair out about thier experiance in detecting lies. They then saw video clips of suspects. After watching the clips they had to indicate whether it was a lie or the truth and how confident they were with thier decision.
Results: Police officers were 66.2% accurate at detecting lies and 63.6% accurate at detecting truth.
Conclusions: Police officers are good at detecting lies however we needed a control of normal people in order to test reliablity.
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