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Polygraph Unit  

Mission
The mission of the polygraph unit is to conduct polygraph examinations in support of the Criminal Investigations Division and the command staff, by aiding in the resolution of criminal cases and identifying applicants unfit for employment by the Police Department.

Personnel
Photo:  Polygraph Equipment
Polygraph Equipment
A 2007 graduate of Troy University’s Polygraph School, Detective Elizabeth Post replaced Detective Wes Burns as the police department’s sole polygraph examiner in September 2007. In addition to performing polygraphs as a primary duty, the polygraph examiner provides investigative support to CID and assists the Administrative Unit with hiring coordination and policy analysis. The departmental polygraph examiner must be a graduate of a polygraph school accredited by the American Polygraph Association (APA). The examiner must be a member of the American Polygraph Association and/or the American Association of Police Polygraphists and must attend training annually in order to acquire and maintain APA and/or AAPP membership.

Activity
In 2007, Detective Post and Detective Burns performed a combined total of fifty-five polygraphs. Forty-six were pre-employment screening tests, and nine were specific-issue, or criminal case, tests. This was a 15% reduction from the number of examinations performed in 2006, when sixty-five tests were performed, but roughly equivalent to the fifty-two tests performed in 2005. The reduction in the number of tests performed during 2007 can be attributed to the two months that Detective Post was attending polygraph school.

Accomplishments
Detective Post graduated from the Troy University Polygraph School in Atlanta, Georgia in November 2007. She is currently completing the internship requirements for membership to the American Polygraph Association and the American Association of Police Polygraphists. She is a member of the Northwest Polygraph Examiner’s Association.

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