It is an effective investigation tool that is between 90% and 95% accurate. This will save
unnecessary waist / loss of valuable man hours during a serious investigation.
It is a very effective interrogation tool.
The modern Polygraph instrument can monitor and record up to five measures:
2) Electro dermal activity,
3) Cardio changes,
4) Relative changes in the total blood volume
using the (Photo Plethysmograph) and
5) Movement to detect certain physical
What is a polygraph?
The polygraph is an instrument that records physical response in the human body when a person fails to tell the truth. It is based on scientific research done over the past 100 years and incorporates the disciplines of applied anatomy, physiology and psychophysiology.
What is the Polygraph Examination?
The Photo Plethysmograph adds new physiological data to existing polygraph information by measuring relative changes in the total blood volume in a body segment and by rapidly
detecting any changes in pulse blood volumes
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