Registrants who are on community supervision are generally required to take an annual polygraph exam. Usually your parole / probation officer will schedule your annual exam for you, but some will ask that you do so or you may prefer to choose your own polygrapher. The following polygraphers operate in the Dallas / Fort Worth area and specialize in post-conviction testing for registrants.
Keep in mind that if you obtain your polygraph examination privately, you may be charged significantly more than if you go through your parole / probation office for the appointment.
- Polygraphers
- GPN owner Michael Martin has been a Forensic Psychophysiologist (polygraph examiner) since 1984 and has administered over 11,500 examinations of all types.
- Over 31 years experience in conducting polygraph examinations for pre-employment purposes, criminal investigations, treatment and supervision of convicted offenders. Extensive training, education and experience in sex offender polygraph examinations.
- Ruiz Protective Service, Inc. has been providing polygraph services in the Dallas / Fort Worth area for over 20 years.
- Polygraph examinations in Texas & Alaska. Criminal Polygraph Testing, Pre-Employment Testing, Fidelity Testing, Post Conviction Sex Offender Testing.




