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About Us

Northern Virginia Pre-Employment & Polygraph Services (NVPE&PS)
has been in the field of polygraph testing and professional polygraph (Lie Detector) education in Virginia for decades. NVPE&PS purchased the Virginia School of Polygraph in 2003 and has trained hundreds of new
examiners nationally and internationally. Our examiners have
countless of hours of professional education and have administered every
kind of test out there and are ready to put that knowledge and experience to work for you. With offices in Manassas and Richmond Virginia we are here to help all of Virginia with its polygraph needs! 

Our staff examiners are educated and licensed professionals within the field of polygraph and have worked within or retired from law enforcement, psychological, and educational related fields, which provide our firm with the diversity to provide services to our clients. In sum, having this diversity, we can choose the best examiner to handle your case, based on his or her prior experiences. Our commitment to our clients has and always will be conducted professionally, with the utmost integrity, honesty and most importantly, treating every client respectfully. 

We own the Virginia School of Polygraph which 

provides students with cutting edge technical knowledge, quality question formulation schemes and practical experience in conducting polygraph examinations. Utilizing proven training techniques individualized tutoring and emphasizing proper interviewing methods will enable our students to build upon their foundation; eventually becoming expert practitioners and future leaders in the polygraph profession.






  • Certified Clinical Polygraph Examiners

  • Certified Clinical Law Enforcement Examiners

  • Combined 90 years of professional law enforcement and polygraph exam experience

  •  Specialized in post-conviction sex offender testing and domestic violence perpetrator testing.

  • Utilized by multiple police/fire departments, executive and local security firms in Northern Virginia. 

 Scales of Justice
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