Rather than make a hard and fast judgment about the truth of statements made during the polygraph test, the examiner will tell you whether or not they believe the subject engaged in deception throughout the questioning. This method is used at the highest levels of United States court proceedings.
The “control question technique” has been found 87% accurate. At Excell Investigation, you can trust the conclusion of our polygraph is at minimum 80% certain; however, a definite decision on truth vs. lies cannot be found this way.