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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 a Polygraph?

Welcome to Global Polygraph

Advantages of the Polygraph

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.

Polygraph Examination

The modern Polygraph instrument can monitor and record up to five measures:

1) Respiration,

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


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The spinal of criminal activity in and out of the workplace has seen polygraph testing increased dramatically as the crime rate escalates and crime in the workplace increases. The admissibility of polygraph testing within the employment relations context in South Africa is seen as a critical issue. South African employers are increasingly turning to polygraph testing as a means of, not only to detect dishonesty in the workplace, but also in the hope that pre-employment and in-employment screening will prevent, or at least determine, theft and fraud discovery and syndicate crime. There is a wide spread of polygraph testing, particularly in the information for technology, retail, security, mining and banking industries. The polygraph is seen to be a quick and cost effective tool in the fight against crime within the working Environment.

Why Polygraph?


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Polygraph Recommendation

There is no doubt in my mind that at present there is no better investigation tool better than the Polygraph Instrument that  is  available  to  Law  
enforcement, government agencies and private polygraph examiners worldwide in the fight against crime and corruption.
It has helped me tremendously in proofing the innocence of innocent examinees and identifying deceptive examinees and obtaining full
confessions from them.
Unsolved crimes  ranging  from murder, armed robberies, child  abuse, rape, theft  of  millions of rands from  companies,  theft  of  extremely  
valuable  property  and  information has  been  solved using the polygraph. Polygraph is a way of life for me, it has proven itself over and over
and I will definitely defend it when it is under attack from anything that has not been proven or validated.

Global Polygraph is there to help any company and employer to keep
up with crime and untruthfulness in and around the work place.

Global Polygraph is one of the leading polygraph companies in the market
today with 12 years of polygraph experience.
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       Global Polygraph Services is one of the Top Polygraph Services in the market today. Our Polygraphist is well trained and has been Internationally Accredited. All our members have been trained in Forensic Psychophysiology as well as Interviewing and Questioning and have undergone training in several Body Language Courses.

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