The assistant chief of police has decided to forego using the polygraph test on a suspect and will use a different technique to assess the suspect's physiological responses to crime-scene details. This is known as the guilty knowledge test.
Step-by-step explanation:
The Guilty Knowledge Tests (GKT's) refers a psycho-physiological survey method that could be used in a polygraph test to find whether suspects are hiding "guilt" by measuring their physiological answers to multiple choice questions.
50 participants were randomly selected to commit one of two real false crimes. Later they were tried with GKT for crimes and things they did not know about. Using the best scoring systems, as per logistic regression analysis, this test correctly classifies 84% innocent and to 76% criminals.