How does the lie detector work?
The scientific process of Lie Detection utilizes instrument(s) that record physiological reactions to questioning that is pertinent to the case facts that are being Investigated. The instrument(s) record at least breathing, blood pressure and sweat gland activity. (with the computerized polygraph instrument there are various other recording modules that can or may be recorded) The examiner will give you more information about how the components attached to your body work, how the instrument works and why your body responds to relevant questioning.