Our Team 

In any industry, the people behind a company are just as important as the
company itself. Our team is comprised of some of the most well-practiced
and experienced polygraphists around. Each examiner offers a unique
strength and background which keeps our company diverse and flexible
when dealing with any type of test. We take pride knowing that our
employees share a strong belief, passion and faith in our service. Please
take a moment to read about our great staff below.

Darryl L. DeBow



Darryl DeBow is the owner of Northern Virginia Pre-Employment & Polygraph Services and the Director of the Virginia School of Polygraph. He previously served as Deputy Sheriff with the Loudoun County Sheriff's Office, where he retired as a sergeant in 1995. Mr. DeBow continued working in law enforcement between 1996 until 2008 with Arlington County Sheriff's Office and left at the rank of Lieutenant. In 2011, he was made an honorary Deputy Sheriff for the Laurens County Sheriff's Office in Georgia after training their first examiner who went on to establish the agency’s first ever polygraph program. Mr. DeBow received his bachelor’s in criminal justice.


Prior to acquiring it himself, Mr. DeBow graduated from the Virginia School of Polygraph in 1995 during its ownership by the founder and former Director of the school Billy Franklin and is also a graduate of the prestigious FBI Advanced Polygraph Training Program. Mr. DeBow has also served as a board member of the Department of Professional Occupational Regulation- the polygraph licensing agency for the State of Virginia. During his career, he has received numerous honors, such as the highest award given by the Loudoun County Board of Supervisor, the Loudoun County Merit Award, for his work as a criminal investigator, as well as valor awards for Bravery in the Line of Duty and the Lifesaving and Unit Valor Award for his actions as a member of the Loudoun County Special Emergency Response Team. He was also honored by the Washington Federal Bar Association for his overall professionalism and dedication as a Law Enforcement Officer, which was presented by former United States Attorney General Janet Reno.


Mr. DeBow has lectured on the general field of polygraph as well as the use of polygraph in Post-Conviction Sex Offender Testing, which he specializes in today, and is a primary instructor for examiners going into this specialized area of polygraph. He has been an instructor and guest lecturer for a variety of organizations including The Virginia Public Defender's Annual Conference, The Federal Probation and Parole Annual Conference, Marymount University's Forensic Psychology Master’s Program, where he was an adjunct professor, various courses for Northern Virginia Community College's Administration of Justice Program and a number other organizations. Additionally, he is a Certified Clinical Examiner in Post-Conviction Sex Offender Testing and a Certified Forensic Law Enforcement Polygraph Examiner.


In addition to his role as owner and Director of the Virginia School of Polygraph, Mr. DeBow is certified by the American Polygraph Association as the Primary Instructor for the school and has instructed in every basic and advanced course offered by the Virginia School of Polygraph since he purchased the school in 2003, where he has since trained law enforcement examiners from across the United States and abroad as well as private examiners going into the field of polygraph.

Brennan DeBow 



Brennan DeBow is a skilled and well-practiced polygraph examiner. He has worked at Northern Virginia Pre-Employment and Polygraph Services since 2017, first as an office manager, then proceeding his graduation from the Virginia School of Polygraph in 2019 as a full-time polygraph examiner board Certified by the Commonwealth of Virginia Department of Professional and Occupational Regulation. Prior to his schooling at the Virginia School of Polygraph, he graduated from East Coast Polytechnic University with a bachelor’s degree in business administration. In 2018 he obtained an expert level certification in project management from ExpertRating Global Certifications. Additionally, he has achieved the rank of Eagle Scout through years of dedication and community service throughout the United States. Brennan is highly motivated and strives to provide the most ethical and professional polygraph services possible, with an emphasis on empathy and understanding of each client’s needs.


Guy Morgan


Guy Morgan has been a polygraphist since 1985, graduated from the Keeler Polygraph Institute. He obtained his Bachelor of Science from George Mason University in Criminal Justice and retired as a Master Police Officer from the Fairfax County Police Department which included assignments in Major Crimes and Personnel. Mr. Morgan was also employed as a sworn polygraph examiner in Loudoun County Sheriff's Office, and an investigator for the Loudoun County Commonwealths Attorney Office, as well as a Professional Standards Investigator for the Fairfax County's Fire & Rescue. Mr. Morgan instructed overseas in Bosnia in 2002 and Iraq in 2004. He's been associated with the Northern Virginia Pre-Employment as a polygraphist since 1999 and an instructor at the Virginia School of Polygraph.

Juliyet Carrington


Juliyet Carrington is a graduate from Old Dominion University. She holds a Bachelor of Science Degree, in Criminal Justice. She has served 25 years as a Deputy Sheriff, with full law enforcement capacity in the Northern Virginia area. Her divisions of work experience include: Adult Detention Center, Security of the Judicial Complex.  Moreover, her work experience has included Court Security – (Juvenile Domestic Relations, General District, and Circuit Court). She has extensive experience and training in courtroom protocols, testimony, evidence, to include protection and security of Judges. In addition, Ms. Carrington has been trained in “active shooter” response, and maintains 25 years of weapons training with “Expert” level firearms qualification. Juliyet Carrington has completed the Virginia School of Polygraph in the study of, Forensic Psychophysiological Detection of Deception. She is certified by the State of Virginia, Department of Professional Occupation and Regulations, as licensed Polygraph Examiner.

Krista Regan 

Operations Manager

Krista Regan is a long time resident of northen Virginia. She graduated from Shephered University with a degree in social work. She has worked in the areas of psychiatric residential treatment and specialized education as a social worker, and as a counselor for children, teens, and young adults coping with behavioral maladaptation and cognitive delays. She also has worked within the juvenile court systems with child protective services, truancy, and treatment continuation cases over the years. Krista believes that no matter what walk of life you come from, or what issues you are facing, you will be heard and respected to the highest degree.

© 2020 Northern Virginia Pre-Employment and Polygraph Services