CRIMINAL JUSTICE ASSOCIATES - Main Office • (407)583-4080 • (800)224-1320 • Info@LieDetectionServices1.com
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CVSA®II (Computer Voice Stress Analyzer) Advantage

Criminal Justice Associates utilizes the CVSA® for a wide range of lie detection-truth verification exams. The CVSA®II is used by over 2,000 law enforcement and government agencies in the USA. The CVSA®II has a 22-year successful track record and the only truth verification instrument to hold (3) U.S. Patents. A partial sampling of CVSA®II users in the USA include Atlanta GA Police Department, Georgia Tech Police Department, Fulton County GA District Attorney’s Office, New Orleans LA Police Dept., California Highway Patrol, Missouri Highway Patrol, Illinois Department of Corrections, Nashville TN Police Department, Orange County FL Sheriff’s Office, Daytona Beach Police Department, Clearwater FL Police Department, Pinellas County FL Sheriff's Office and Miami FL Police Department. Florida alone has over 180 CVSA®’s in use by various law enforcement agencies.

What makes the CVSA so Effective as a Truth Verification Instrument?

CVSA II Exam - Lie DetectionThe CVSA®II works every day, and all across the USA and in foreign countries. It is the alternative to polygraph in terms of lie detection-truth verification. The instrument requires no wires be attached to the subject being tested. The CVSA® uses only a specialized microphone attached to the computer to capture and analyze the subject’s responses. As the subject speaks, the computer displays each voice pattern, numbers it and saves each chart to file. While the CVSA® uses the Yes and No format in exams, it also has the flexibility of analyzing telephone conversations covertly in real time or tape recordings. The polygraph cannot do that as the subject has to be connected to various sensors and be physically present in the same room.

The CVSA® records, quantifies and analyzes frequency changes in the human voice. When an individual is not being truthful the autonomic nervous system creates inaudible changes in the frequency of the human voice. During the CVSA® examination process, the instrument identifies vocal stress related to specific issues under investigation. It has been established that consequence-based stress can be detected in the human voice using the CVSA, which can be directly correlated to truth and deception (Journal of Criminalistics and Court Chapman, 2012). The CVSA has a remarkably low error rate (less than ½%), has no inconclusive results, and far surpasses the validity and reliability of the computerized polygraph.

If a person uses drugs, has internal or external medical issues this can impact the polygraph. These do not create a problem for the CVSA® or impact the results of the exam. Unlike the computerized polygraph there are no known counter-measures in use against the CVSA®. Despite the effectiveness of the polygraph countermeasures do exist that can be used against it.  Many of them are posted on t the internet.

The CVSA® is effective truth verification instrument for criminal, civil, administrative, and immigration applications. The CVSA® is used by law enforcement to conduct pre-employment exams, internal affairs investigations, and a wide range of criminal investigations. It is a well known the CVSA® has cleared innocent people exposed the guilty, and when the polygraph exam failed. This has been true in more than one high profile criminal case. The CVSA® is also an effective tool to use in a corporate environment to seek out the truth in theft cases, sabotage, insurance and workmen’s compensation fraud as just a few real case examples.

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What can the CVSA®II do for my Company, Organization, or Profession?

The CVSA can provide reliable and consistent truth verification for your firm, to include some of the following:

* Corporate Investigation & Legal – The CVSA® can be used to investigate Employee Theft cases which could include cash, checks, or company property. It can also be used to seek out the truth in accusations of Sexual Harassment, False Injuries and or Workmen Compensation, Disability cases. If your company has a situation you feel might require a lie detector test please contact us for an evaluation to determine if one can be administered.  EPPA Rules Apply.

* Criminal/Civil Litigation Cases – The CVSA® can be used to verify the facts to support or refute criminal and civil cases. Law enforcement relies heavily on the CVSA® to clear suspects and identify the guilty in a wide range of crimes from murder, rape, grand theft, robbery, to name a few. More an more law enforcement agencies are converting to the CVSA®II for that reason.

* Immigration, Marriage Scams, & Human Trafficking – The CVSA® can help verify and document immigration claims in the absence of actual documents. It can assist in seeking out the truth in asylum, residency, and other issues. It can be used to validate legal marriages and or expose marriage scams. It is also helpful in learning the truth from victims of human trafficking cases and violence against women and or children while residing in the USA.

* Polygraph Exams – If you have failed a polygraph exam we can retest using the CVSA  We can utilize the same questions as the polygraph, or refine or expand them according to your needs. Many people have failed polygraph exams for various reasons and may be seeking a polygraph alternative. The CVSA® is the polygraph alternative in the event of an INCONCLUSIVE score, or the examinee suffers from medical problems that would also impact the final score.


A properly structured CVSA exam configured with the right questions can provide your company or profession the answers you need. Keep in mind that the results of any lie detection-truth verification exam should be ONLY one factor in your total decision making process.

The CVSA® is just one of the credibility assessment tools used for lie detection - truth verification exams. All exams are conducted within strict legal guidelines in terms of state and federal laws and fully compliant with the EPPA.

Please review the other sections of our website site to learn about our other Credibility Assessment Instruments to include Computerized Polygraph and the EYEDETECT System

Our firm can provide you with the lie detection-Truth verification services when you need it. Contact us for further details at (407)583-4080 or (800)224-1320. We provide our services in all Major Florida Cities to include the surrounding communities.

COMPUTERIZED POLYGRAPH, CVSA® & EYEDETECT EXAMS
CONDUCTED FOR LEGAL & BUSINESS PURPOSES ONLY
ALL ASSIGNMENTS ACCEPTED ON A CASE BY CASE BASIS
SERVING MAJOR FLORIDA CITIES – APPOINTMENTS WITHIN 24 HOURS
ALL INQUIRIES ARE CONFIDENTIAL

(800)224-1320

SERVING ORLANDO FL, DAYTONA BEACH FL, TAMPA FL, MIAMI FL,
WEST PALM BEACH FL FORT LAUDERDALE FL,
STUART FL, JACKSONVILLE FL, TALLAHASSEE FL,
LAKELAND FL, WINTER HAVEN FL, KISSIMMEE/DISNEY WORLD FL,
CLEARWATER FL, OCALA FL, GAINESVILLE FL,
TO INCLUDE THE SURROUNDING COMMUNITIES.

CVSA is registered trademark of NITV Federal Services.
EYEDETECT is a registered trademark of Converus.



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Orlando, Florida Metro Area
(407)583-4080
(407)650-3344 FX
(800)224-1320
FL LIC#A9100281

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(904)638-2281

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