Attorney & Criminal Defense Testing

criminal defense polygraph

Wrongfully accused and need a lie detector test?  Polygraph is used extensively by attorneys who wish to provide the best possible defense for their clients. Most attorneys will submit their own clients to the exam, while others will use the polygraph to verify statements made by witnesses and other parties to litigation. Now known as Psychophysiological Detection of Deception (PDD), an experienced examiner can provide evidence in connection with any type of criminal or civil matter. Our examiners have a great deal of experience working with attorneys, both in private and government practice, and have aided thousands of clients in preparing defenses that would otherwise have been unavailable to them.

With the 1998 establishment of polygraph (Forensic Psychophysiology) standards by ASTM, polygraph has gained great strides in credibility with the scientific community. These standards, approved by a combined body of experts, now provide a template for the increased acceptability of polygraph results.

Contrary to popular belief, polygraph is not per-se inadmissible in court proceedings. Admissibility standards are different in each jurisdiction. Some jurisdictions allow polygraph evidence, either stipulated or un-stipulated, some prohibit polygraph evidence altogether, and many others allow the judge to decide admissibility on a case-by-case basis. The Daubert case is presently the standard for the admission of scientific evidence, which includes polygraph, although some jurisdictions still rely on the older Frye standard. In reality, most polygraph results are used outside of the courtroom in pre-trial negotiations, plea bargaining, sentence recommendations, and witness verification or impeachment.

Civil and family courts are more flexible when allowing polygraph evidence, as the admissibility requirements in these venues do not need to meet the Daubert or Frye standards.

Here is a link to our page about proper polygraph question design.

For the most accurate results, learn how to prepare for a lie detector test by clicking HERE.

Wrongfully convicted of a crime?  We can help strengthen your appeal bid.

If the person to be tested is incarcerated in a jail, prison, or correctional institution, we can still provide this exam in most cases, but the exam will probably need to be coordinated through an attorney.  Contact us directly for more information or for a price quote.

If necessary, we can refer you to experts able to testify to the scientific foundation and credibility of polygraph.

GPN can provide the following types of exams:

  • Lie Detector Test for Criminal Defense
  • Polygraph Test for Criminal
  • Lie Detector Test for Criminal Charges
  • Lie Detector Test for Sexual Assault
  • Polygraph Test for Sexual Assault
  • Lie Detector Test for Child Abuse
  • Lie Detector Test for Sexual Contact with Child
  • Lie Detector Test for Child Pornography
  • Lie Detector Test for Wrongful Conviction
  • Polygraph Test for Wrongful Conviction
  • Lie Detector Test for Murder
  • Lie Detector Test for Assault
  • Lie Detector Test for Theft
  • Polygraph Test for Theft
  • Lie Detector Test for Embezzlement
  • Lie Detector Test for Rape
  • Lie Detector Test for Arson
  • Lie Detector Test for Robbery
  • Lie Detector Test for Fraud
  • Lie Detector Test for Property Damage
  • Lie Detector Test for Drug Use
  • Polygraph Test for Drugs
  • Lie Detector Test for Drug Possession
  • Lie Detector Test for Motor Vehicle Violations
  • Lie Detector Test for DUI or DWI
  • Lie Detector Test for Weapons Charges
  • Lie Detector Test for Plea Bargaining
  • Lie Detector Test for Sentence Adjustment
  • Lie Detector Test for Immigration
  • Lie Detector Test for Insurance Claims

Please contact us directly at info@polytest.org with any questions.

Michael Martin, President
Global Polygraph Network®

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GLOBAL POLYGRAPH NETWORK®

Established in 1987, Global Polygraph Network® is the world’s largest and most trusted polygraph (lie detector) company with services available at hundreds of locations by highly-trained experts worldwide. Avoid “discount” polygraph frauds and “over the phone” testing scams. We only provide real polygraphs by real examiners. Trust our A+ BBB rating, up-front pricing, and written guarantee.