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Ball & Gillespie is the oldest private polygraph company in Western Washington, operating continually for 40 years. It was opened in 1974 as "Gillespie Polygraph" by Dewey Gillespie soon after his retirement from the Seattle Police Department. Between 1974 and 1986, Dewey Gillespie operated the business with the help of other retired police examiners.
 
In 1986, Terry J. Ball bought Gillespie Polygraph upon Dewey Gillespie's final retirement to Arizona. Terry Ball has been operating the business since 1986 with the help of other professional polygraph examiners. Ball & Gillespie Polygraph offers professional polygraph services to law enforcement agencies, private attorneys, private businesses, and private citizens.
 
Our professionally trained examiners and our state-of-the-art equipment guarantee that you will receive the very best polygraph examination here at Ball & Gillespie Polygraph.  Don't settle for a poorly trained, inexperienced polygraph "operator" who will offer you discounted prices. When you need "only the very best" call Ball & Gillespie Polygraph.

We Have Moved!
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We are no longer in Edmonds. Our new address is 16825 48th Ave West, Suite 218, Lynnwood, WA   98037. We are located in the Meadowdale Work Lofts office building one block west of the intersection of 168th Avenue and Highway 99 in Lynnwood. 
 
Go to "Map/Instructions" to get exact driving directions to our new high security office building.
 
 
 

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Terry J. Ball, Chief Examiner

Ball & Gillespie Polygraph

16825 - 48th Avenue West, Suite #218

Lynnwood, Washington  98037

(425) 775-9015

tjball@lie2me.net

 

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We are proud members of the following organizations:
Northwest Polygraph Examiners Association
American Polygraph Association
National Polygraph Association
American Association of Police Polygraphists
British & European Polygraph Association





forsale.jpgPolygraphs for Sale

All the Polygraph Instruments in the "Polygraph Museum" are for SALE

Go to "The Polygraph Museum".



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We also accept debit cards and check cards.