We offer this resource to our clients that need to determine the reliability of a person, whether it is for pre employment needs or specific case or incident related issue.


Group CSC offers both Polygraph and Voice Stress Analysis (VSA) for these purposes. Our examiners are certified for the use of the equipment and highly experienced. Exams are available in English and Spanish testing and result reporting.

Polygraph, is a method based on the detection of alterations in the nervous system of the subject being tested.

VSA, Voice Stress Analysis, measures the stress level of individuals being tested basing on the involuntary voice pattern changes produced during the act of deception.