The Guilty Knowledge Test (GKT) Is One of the Most

Multiple Choice

The guilty knowledge test (GKT) is one of the most promising polygraph techniques to date. However, there are some limitations to its usefulness. Which of the following is one of the main limitations of GKT?

A) Most criminals remember the scene of their crimes very vividly.
B) GKT does not attempt to detect lies, only the unusual physiological reactions.
C) A sufficient number of crime facts uniquely known by only the criminal is often not available.
D) Polygraph examiners are reluctant to take on the leading role in formulating the questions.