230k views
4 votes
Although newspapers reported that a murder victim had been stabbed with a knife, two police investigators knew that the actual murder weapon was a letter opener. While carefully monitoring the changes in the heart rate and perspiration level of a prime suspect, the investigators asked him if he typically used a letter opener on his mail. The investigators were making use of the______________.

1 Answer

2 votes

Answer:

guilty knowledge test

Step-by-step explanation:

Guilty knowledge test: The guilty knowledge test is also denoted as GKT, and is referred to as the psycho-physiological questioning technique which is being utilized as a part of the polygraph examination that assesses the suspects in terms of concealing guilty knowledge through measuring his or her physiological response while performing a specific series of a few multiple-choice questions.

The given statement in the question signifies that the investigators were using the guilty knowledge test.

User Anju
by
8.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.