J. Ball graduated from Central Missouri State University in 1972 with a B.S. Degree in Criminal Justice Administration. He
was a commissioned police officer for two years in the State of Missouri before moving on to a ten year career in retail Loss
Prevention with the Pay 'n Save Corporation. He finished his loss prevention career as the Corporate Director of Loss Prevention
for Schuck's Auto Supply in Bellevue, Washington.
He graduated in 1985 from the Utah Academy
of Forensic Polygraph under the tutelage of Clark Tebbs. In 1986, he left the retail sector to buy Gillespie Polygraph. Since
that time, he has performed over 10,000 polygraph tests for law enforcement agencies, correctional agencies, private attorneys,
and private citizens.
He is a Nationally Certified Polygraph Examiner, and a member of the Northwest Polygraph Examiner's Association,
the American Association of Police Polygraphists, and a Charter Member of the National Polygraph Association.
can contact Terry directly at:
Ball & Gillespie Polygraph