Frequently asked questions

How accurate is a polygraph test?
A polygraph exam is not 100% accurate as a variety of factors could potentially interfere with test accuracy.  Nonetheless, a polygraph exam remains one of the most accurate investigative tools to be used in cases when no other forensic method can be used.  Some scientific studies have claimed accuracy as high as 98%.

What is your success rate?
A polygraph examiner is an independent and objective examiner.  We are not detectives, investigators, judges or problem solvers.  We merely report our expert opinion.  The “success rate” concept is therefore not applicable or used in our profession.  It is not the job of a polygraph examiner to solve a crime or to prove anything.  A polygraph exam is successful when it was completed according to accepted procedures and standards and a professional opinion was expressed indicating deception (lies) or no-deception (truth).

I have been affected by crime and need polygraph testing done.  Can you help?
Yes, we are experts in crime-related testing but there are certain types of cases that we would not accept.  Cases that we normally do accept include theft, fraud, robbery etc.  Cases that we normally do not accept include sexual abuse.  Contact us and explain your situation, then we can tell you whether we can help or not.  If we cannot help, we will try to provide you with other/alternative sources of possible assistance.

I want to have a relationship/marriage/infidelity type polygraph done.  Can you help?
We specialize in business/crime related testing.  Under certain circumstances, and subject to special conditions, we may from time to time assist you with a personal matter.  However, due to the nature of personal tests and the fact that these cases tend to take a lot of time to deal with, standard pricing is not applicable.  These tests are expensive and would normal cost around R2000.00 (pricing as in 2017).  Contact us and explain your situation, then we can tell you whether we can help or not.  If we cannot help, we will try to provide you with other/alternative sources of possible assistance.

I want to have a child tested.  Can you help?
Possibly, depending on the age of the child, his/her intelligence, level of co-operation and understanding, etc.  Contact us and explain your situation, then we can tell you whether we can help or not.  If we cannot help, we will try to provide you with other/alternative sources of possible assistance.

I want someone tested for drug use?  Can you help?
The most accurate way of testing for drug use is the medical route. Consult a medical practitioner or a pathology lab for advice.  Only if that option is impossible shall we consider assisting you.  Contact us and explain your situation, then we can tell you whether we can help or not.  If we cannot help, we will try to provide you with other/alternative sources of possible assistance.

Can I force or compel someone to be tested?
Absolutely not.  A polygraph exam must be done willingly.  Even if it is an employee who has signed a contract or agreement consenting to polygraph testing whenever required, that person must still be willing to co-operate with the polygraph examiner and must be willing to give the polygraph examiner written consent/permission.

I have heard that polygraph evidence is not admissible.  Is this true?
In South Africa a trained and qualified polygraph examiner is considered to be an expert witness whose testimony is admissible in Court, the CCMA, Bargaining Councils and disciplinary hearings.  However the expert opinion is merely that, i.e. the opinion of an expert.  It is not absolute proof and can never on its own prove guilt or innocence.  Polygraph evidence is considered to be corroborating or supporting evidence.