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POLYGRAPH TESTING & LIE DETECTOR TESTING
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If you require the services of a
specialist polygraph test and lie detector testing expert in the United Kingdom, (UK) England, Scotland, Wales,
Northern Ireland, Republic of Ireland or internationally, please select the
appropriate specialist below:
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UK POLYGRAPH SERVICES
- GRAYS, ESSEX |
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0044 (0)1375 408215 |
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0044 (0)7984 851030 |
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0044 (0)1375 408123 |
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admin@ukpolygraph.co.uk |
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http://www.ukpolygraph.co.uk |
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Click Here For Map |
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UK Polygraph Services operating
since 2005 provides Polygraph (Lie Detection) professional
examinations for and not limited to: Truth verification for
Sexual and Physical abuse, Theft, Fraud, Falsely accused
Integrity/employment verification and Personal fidelity issues.
Tests are carried out for Companies, Legal Services and Private
clients in a confidential and sensitive manner. |
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Europe and Worldwide |
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British Polygraph Association.
American Polygraph Association. UKPIN |
Q. Is there any
difference between a Polygraph and a Lie Detector?
A. No?
Q. How Does the
Polygraph (Lie Detector) Work?
A. The polygraph works by tracing changes in a person's physiological
conditioning during questioning. These changes are recorded directly on to the
polygraph charts during testing in order that they can be reviewed. Some of the
changes that occur may replicate those that have been linked with truth or
deception for many years. These physiological changes have been the subject of
various research projects and qualified Polygraph test examiners have
undertaken many hours of polygraph testing and chart analysis instruction to
interpret them.
The Polygraph charts are generated
by attaching four components to the subject.
Pneumograph
Two convoluted rubber pneumograph tubes are placed around the subject's upper
chest and abdomen on the outside of their clothing, these test and record
respiration and movement.
G.S.R
The GSR or Galvanic Skin Response is produced by placing two finger plates
across fingers on one of the subject's hands. These trace changes to the skin
resistance during the Polygraph testing and examination.
Cardiosphygmograph
This component traces changes to the subjects relative blood pressure and pulse
rate and it is similar to the pressure cuff your doctor uses when taking your
blood pressure.
After the questions have been asked with the subject attached to the polygraph
the testing examiner will read the generated charts to establish truth or
deception. The agreed questions will always be asked at least twice.
Q. How reliable is Polygraph Testing?
A. There is no doubt that the polygraph is highly reliable, providing the
person using it is properly trained and the technique they use is validated.
The American Polygraph Association (APA)
has gathered over 200 studies on the subject.
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