top of page


Instructors retained for this school are all highly professional individuals and should be treated as such. Attorneys, physicians, psychiatrists, psychologists and other professionals will be lecturing on a regular basis. All of our instructors and guest lecturers have many years of experience in their respective fields. Instructors may change depending on the necessity of the class and or instructor's availability.

Darryl L. DeBow, CCE, CFLE


As the Owner and Director of the Virginia School of Polygraph, Mr. Darryl DeBow has accumulated valuable experience and knowledge as a 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 Mr. DeBow was made an honorary Deputy Sheriff for the Laurens County Sheriff's Office in GA after training their first examiner who returned to start their first ever polygraph program for that agency. Mr. DeBow has received his bachelors or Criminal Justice.

Mr. DeBow is a graduate of the Virginia School of Polygraph while owned by the founder and former Director of the school, Mr. Billy Franklin. Mr. DeBow is also a graduate of the prestigious FBI Advanced Polygraph Training Program. Mr. DeBow has served as a Board Member of Department of Professional Occupational Regulation, which is the polygraph licensing agency for the State of Virginia. During his career he was received numerous honors, such as receiving the highest award given by the Loudoun County Board of Supervisors: the Loudoun County Merit Award, for his work as a Criminal Investigator, valor awards for Bravery in the Line of Duty, Lifesaving and Unit Valor Award for his actions as a member of the Loudoun County Special Emergency Response Team. Mr. DeBow 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 specialization area of polygraph. Mr. DeBow has been an instructor and guest lecturer for a variety of organizations to include: 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 as well as various other organizations. Mr. DeBow is a Certified Clinical Examiner in Post-Conviction Sex Offender Testing and a Certified Forensic Law Enforcement Polygraph Examiner. Mr. DeBow is certified by the American Polygraph Association as the Primary Instructor for the Virginia School of Polygraph 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 trained law enforcement examiners from across the United States and abroad as well as private examiners going into the field of polygraph.

Guy Morgan

Instructor of R&I Technique and Polygraph Skill and Techniques

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.

Chad Perkins

Legal Instructor

Mr. Perkins is a graduate of Widener University Law school and is currently employed by the Newport News Commonwealth Attorney’s office as an Assistant Commonwealth Attorney.

Dr. Stephen Plotnick, MD, PLLC

Physiology Instructor

Dr. Plotnick received his B.S. degree in Biology from Boston University in 1984.  He received his medical degree at Boston University School of Medicine. Dr. Plotnick completed his residency in internal medicine at Hahnemann University Hospital in Philadelphia in 1991 and his fellowship in Rheumatology at Washington Hospital Center in 1993.  Dr. Plotnich served in the National Guard between 1985 and 1991 and received an Honorable Discharge as a Captain in 1991.  Dr. Plotnich is currently employed at East Cost Polytechnic Institute University’s Medical Careers Institute as an instructor in Anatomy, Physiology and Microbiology.   

Christine Karl

Psychology Instructor

 Miss. Karl received her Master’s degree in Sports Science, Psychology, and Education from the University of Salzburg in 1999.  Miss. Karl has a Master’s degree in Forensic Psychology from Marymount University. She is heavily involved in working with child victims of sexual abuse or molestation.  She has also worked with the Center for Missing and Exploited Children. 

bottom of page