South Carolina Polygraph/CVSA Testing Information
Through our affiliates, Myrtle Beach Investigators can coordinate polygraph or Computer Voice Stress Analysis Testing.
A polygraph is popularly referred to as a lie detector, which measures and records several physiological indices including blood pressure, pulse, and respiration while the subject is asked a series of questions.
CVSA Testing detects, measures and displays changes in voice frequency. Such testing can be beneficial in many circumstances when coupled with a thorough investigation. It is not recommended that such testing is used independently as it may provide only one aspect of the matter at hand.
Is a Polygraph Accurate?
There has been a debate for years whether or not lie detectors work. Someone who is telling the truth might be very nervous or anxious, while someone who is lying can sometimes be as “cool as a cucumber”.
However, there have been numerous studies that have shown the ability for the machine to pick up on deception.
Police will often request that a suspect submits to a polygraph exam. While you’re not obligated to submit to this request, it is highly recommended that you seek legal advice prior to consenting to such an exam.
What is CVSA Testing?
Unlike the computer polygraph, the CVSA requires no wires be attached to the subject being tested. The CVSA uses only a microphone plugged into the computer to analyze the subject’s responses. As the subject speaks, the computer displays each voice pattern, numbers it and saves each chart to file.