Forensic Polygraph Examinations - Professional Personnel Evaluation
Design - plaZma GRAPHICS
Jánn Oosthuizen
BA (Honours) Psychology & Criminology
Pretoria University 1991
Forensic Psycho-Physiologist
Certified with International Institute of Polygraphers, Georgia Atlanta in 1994.
SANDF Intelligence (ex)
Member:
American Polygraph Association
janno@wbs.co.za
BA (Honours) Psychology & Criminology
Pretoria University 1991
Forensic Psycho-Physiologist
Certified with International Institute of Polygraphers, Georgia Atlanta in 1994.
SANDF Intelligence (ex)
Member:
American Polygraph Association
janno@wbs.co.za
Scope of test questions
Personal and intrusive questions, unless directly relative to the matter being tested, have no place in a properly conducted polygraph examination. No examiner should enquire into the following areas during pre-employment or periodic employment examinations:
- Religious beliefs or affiliations
- Beliefs or opinions regarding racial matters
- Political beliefs or afiliations
- Beliefs, affiliations or lawful activities regarding unions or labour organizations
- Sexual preferences or activitiies
In a specific-issue polygraph test the relevant questions focus on the particular act under investigation.
There are no surprise or trick questions.
- Beliefs or opinions regarding racial matters
- Political beliefs or afiliations
- Beliefs, affiliations or lawful activities regarding unions or labour organizations
- Sexual preferences or activitiies
In a specific-issue polygraph test the relevant questions focus on the particular act under investigation.
There are no surprise or trick questions.
Admissability
Polygraph results are not admissible in South African courts, but can be used as evidence at the CCMA provided there is corroborative evidence that supports the polygraph result.
Accuracy
Scores of studies have been done on the accuracy of polygraph testing. According to a review of of 52 specific issue laboratory polygraph and 7 specific issue field polygraph studies, the American National Research Council (2003) reported accuracy indexes of .86 and .89 (on a scale of 0 to 1) respectively.
Who qualifies as an examiner?
A person is qualified to receive a license as an examiner if
- he or she is a person of good moral
character
- passed an examination conducted by the
Licensing Committee
- who has conferred on him/her an
academic degree at BA level from an
accredited college or university
- and has satisfactorily completed 6 months of
study in the detection of deception
Polygraph results are not admissible in South African courts, but can be used as evidence at the CCMA provided there is corroborative evidence that supports the polygraph result.
Accuracy
Scores of studies have been done on the accuracy of polygraph testing. According to a review of of 52 specific issue laboratory polygraph and 7 specific issue field polygraph studies, the American National Research Council (2003) reported accuracy indexes of .86 and .89 (on a scale of 0 to 1) respectively.
Who qualifies as an examiner?
A person is qualified to receive a license as an examiner if
- he or she is a person of good moral
character
- passed an examination conducted by the
Licensing Committee
- who has conferred on him/her an
academic degree at BA level from an
accredited college or university
- and has satisfactorily completed 6 months of
study in the detection of deception
