What are polygraphs?
Polygraphs are instruments that measure physiological responses (respiration, pulse, blood pressure, and galvanic resistance) to stress. Polygraphs are used to help determine an individual’s eligibility for a special assignment or access to specifically designated information protected within SAPs. They are not generally use for collateral security clearances, unless they are necessary to resolve serious credible derogatory information that can not be resolved through conventional investigative means. Polygraph examinations are conducted as a supplement to, not as a substitute for, other forms of investigation that may be required under the circumstances. Polygraphs exams are only administered by agencies with approved personnel security polygraph programs, and these exams are only conducted by government trained and certified examiners.
Polygraphs are special tests that can be administered to help determine an individuals eligibility for access to classified information. The use of the polygraph for any Department of Defense (DoD) program is governed by DoD regulations. The Department of Defense (DoD) regulations detail the exact manner in which the examination must be conducted. No relevant question may be asked during the polygraph examination that has not been reviewed with the person to be examined before the examination, and all questions must have a special relevance to the inquiry. Certain “validating” questions may be asked without prior disclosure to establish a baseline from which the examiners can judge the validity of the answers to the relevant questions. The probing of a person’s thoughts or beliefs, or questions on subjects that are not directly relevant to the investigation, such as religious or political beliefs or beliefs and opinions about racial matters, are prohibited.
