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About AAA Affordable Polygraph

Why Do Polygraph Exams?
Polygraph Information
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P.O. Box 12635
Scottsdale, AZ 85267


Will Egert


Certified Forensic Polygraph Examiner

Forensic Psychophysiologist


Why Do Polygraph Exams?

Polygraph Examinations provide valuable information to a wide variety of entities.

Business Sector: Companies and Corporations under the limits of the Employee Polygraph Protection Act of 1988 (EPPA)

Law Enforcement Agencies: Federal Law Enforcement Agencies, State and Local Law Enforcement Agencies such as Police and Sheriff’s Departments, U.S. Attorney Office, Office of District Attorney, the Courts and Parole/Probation Officers.

Legal Community: Defense Attorneys, Public Defenders and Attorneys in civil litigation

Marital and Family Counselors: To alleviate fears and prove innocence to spouse and family members

Private Sector: Private citizens in matters not involving the legal or criminal justice system

Three Main Types of Polygraph Examinations

  1. Pre-Conviction—Refers to standard applications of polygraph testing traditionally dealing with specific allegations (criminal or civil) currently under investigation or indictment, that involve conflicting positions or statements, the outcome of which is pending; and, for which some type of punishment is likely if the guilt of, or deception by the examinee is established.

    Who uses: a) Business Sector, b) Law Enforcement, c) Legal Community, d) Marital and Family Counselors, and e) Private Sector, use polygraph testing as an investigative aid to verify statements of victims, establish the credibility of witness and to evaluate the truthfulness of suspects.

    The most valuable aspect of the investigative use of polygraph testing is to help exonerate the innocent person who is surrounded by circumstantial evidence. It is particularly valuable in those investigations that rely only on testimonial evidence. At the same time, polygraph testing is very helpful in investigations involving multiple suspects by narrowing the focus of the investigation.

  2. Post-Conviction Polygraph– A developing field which often is referred to as “Clinical Polygraph Examination”. Refers to the testing of individuals (post-conviction) while under court supervision (probation, deferred adjudication, parole). Currently it is utilized primarily with sex offender populations under supervision, the defined purposes being to establish and verify disclosure about issues prior to the date of conviction; and to monitor activities and the behaviors of the probationer after supervision began.

    Who uses: a) Judges, who often make decisions about offenders who have much longer histories and many more victims than is revealed at the time of plea agreement or sentencing. b) Therapist, who work with sexual abusers have learned that crimes discovered by the criminal justice system often do not accurately portray the true deviant sexual history. c) Probation/Parole Officers, charged with monitoring the offender’s activity to protect the public.

  3. Pre-Employment Polygraph - On 27 December, 1988, the Employee Polygraph Protection Act became law. This federal law established guidelines for polygraph testing and imposed restrictions on most private employers.

    Who may use: a) Any government entity, including the U.S. Government, any state, any county, any city or village. “According to a recent survey, over 60% of the large police departments in the U.S. use polygraph testing in the pre-employment screening process Police agencies have found that polygraph testing is a very effective means by which to identify high risk candidates. For example, in case studies carried out in Illinois, Ohio, Maryland and Florida it was found that out of 3,576 police applicants given pre-employment examinations, 58% (2068) were identified as high risk candidates for police work in that they had behavioral histories of involvement in activities such as thefts, burglaries, robberies, the use and sale of illegal drugs, bribery, car thefts and various sexual offenses.
    The value of the polygraph testing process is further illustrated by the fact that in most of these cases, the applicants had already successfully passed a series of mental, physical and psychological test, as well as credit and background investigations.” (American Polygraph Association Newsletter, Volume 32, Number 6, November 1999).

    Certain security service employers, including: Armored Car personnel; Fire and burglar alarm installation and repair personnel; Security guards employed to protect proprietary equipment and data, nuclear facilities, industries upon which our national defense may depend; persons applying for employment in jobs that will entail handling pharmaceutical drugs (direct contact); pharmaceutical manufacturers, transporters, distributors, retailers of controlled substances; Certain security contract persons engaged to perform services for some federal agencies, such as CIA or FBI, can be tested under the pre-employment exemptions of The Employee Polygraph Protection Act (EPPA).