Theft (not employment related)

We can test individuals accused or suspected of theft. As long as the examinee is willing to be tests, and there no employee-employer relationship, we can provide this service to you. If this is for an employment-related situation, please read below.

Theft (employment related)

When an employer suspects an employee of theft, embezzlement, or vandalism of company property, we can provide this service in most areas except in those states which prohibit employee testing.  [More Information]

Relationships and Fidelity issues

When trust is lost in a relationship, it could takes years to recover, if ever. In many cases the evidence of adultery is not definitive, so the only way to find out the truth is through polygraph testing.  [More Information]

Criminal Defense & Attorney Services

We provide extensive criminal defense services to clients worldwide. An attorney is not required to hire the services of a polygraph examiner for criminal defense matters, although it is recommended. We also provide testing in prison facilities when necessary. A sample of criminal issues that we test for include:

  • Assault
  • Homicide, attempted homicide
  • Sexual assault, rape, other sex crimes
  • Child abuse or neglect
  • Illegal drugs, possession or distribution
  • Sexual contact with child, solicitation of sex with a child
  • Destruction of property, vandalism, arson
  • Theft, embezzlement, robbery, fraud
  • Weapons charges
  • Restraining order issues
  • Witness statement verification
  • Victim statement verification
  • Motor vehicle accidents, violations, DUI
  • Sentencing issues
  • Plea bargaining issues
  • Read more about Criminal Defense & Attorney Services

Government Contracts

Government Contracts | More Information

Law Enforcement Testing
We offer pre-employment and specific issue testing for Law Enforcement agencies on a contract basis. Contact us for specific quotes based on volume and location.

Academic Misconduct (cheating in school)
Our examiners have provided numerous exams to help exonerate students who have been wrongfully accused of cheating in school.

Fishing / Bodybuilding / Sporting Tournaments | More Information

Drug or Alcohol abuse / Disputing erroneous drug test results

Other addictions (gambling, pornography, etc.)

Witnesses – statement verification

Victims – statement verification

Motor vehicle accidents or violations

Insurance Claims

Sex offender testing (post-conviction)

Many states and countries have developed programs for the treatment and monitoring of sex offenders during their parole or probation periods. Many of these treatment programs require the administration of initial and periodic polygraph exams for purposes of verifying treatment compliance, parole violations, and recidivism.  [More Information]

Other Services

Quality Control 

If you disagree with a polygraph result from an examiner, believe your exam was not conducted properly, or feel your examiner made an error with some aspect of the test, GPN owner and polygraph expert Michael Martin will QC (Quality Control) any exam conducted by another examiner. Contact Michael directly to discuss fees and requirements for this service.


Established in 1987, Global Polygraph is the world’s largest and most trusted polygraph (lie detector) company with services available at hundreds of locations by highly-trained experts all over the world. 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.