A polygraph examination of a suspected murderer included an assessment of his reaction to a detailed description of the victim's clothing and death wounds-details that would be known only to a person at the scene of the crime. The investigators were making use of the

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The guilty knowledge test is a technique used in polygraph examinations where the examiner asks questions that only the guilty party would know the answer to. In this case, the specific details known only to someone at the scene of the crime were used as part of the test to determine the suspect's guilt or innocence.

A Polygraph Examination of a Suspected Murderer Included an Assessment