The polygraph is an investigative tool used by the police to assist investigators in criminal investigations.
A suspect must voluntarily submit to a criminal forensic test that takes approximately 3 hours to complete. All particpants in a polygraph examination are requested to sign a consent form.
The Medicine Hat Police Service utilizes the Limestone Paragon computer based polygraph instrument. The instrument records changes in an examinee's physiology based on their responses to various questions asked by the examiner.
The Medicine Hat Police Service also uses the polygraph to conduct pre-employment screening tests for potential employees such as; police recruits, 9-1-1 dispatch personnel, civilian staff and specialized traffic enforcement unit employees.
For more information, contact:
Sgt. Jeff Klick
Major Crime Unit