Whilst there is little doubt that polygraph is a reliable and accurate Detection Of Deception (DOD) technique, it does suffer from numerous disadvantages outside of the laboratory environment.
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Can you rely on the quality of  Truth Verification tests?




We walk the extra mile to ensure our customers and students satisfaction by making use of the latest technology, scientifically proven methods and highest quality equipment with properly trained Instructors and Examiners in the driving seat.

We specialize in serving the corporate world with Truth Verification training and service.
Our training centre is of the highest standard and our instructors are all trained by the software and equipment manufacturers.
All new students are supplied with legal software and our FVAS courses are certified by Gary Baker, International Society of Stress Analyst, APAVSA – American Polygraph & Voice Stress Association (USA), ILETSB (USA)

All successful students are Listed as members of APAVSA (USA & RSA)
APAVSA members can test internationally as the course, Instructors and Software are approved all over the world.

Welcor TVC is now the official agents of:



  • Baker International and obtained the sole rights to distribute the Expertos FVAS v 6 Software in Africa.


Are you an Polygraph examiner and plan to retire?

We buy Polygraph machines in good working order for cash.


We offer International recognized FVAS and several other DOD courses for the Industry. See the Training Page for more details.

We created a group in LinkedIn for the use of Truth Verification examiners.

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Please join in on the rest of the world's discussions.

SCAN (Statement Contend Analysis) Course Special.

After so many requests from Polygraph and Voice stress examiners, we finally got Mr. Avinoam Sapir to come to South Africa to present a SCAN course.
With SCAN, you become the lie detector.
Scary ….. isn’t it?
You know Welcor by now as a leader in truth verification.
We do our utmost best to bring you the latest and best possible techniques to equip you with the very best and proven methods to obtain the truth and maximise your efficiency.
After negotiation, we arranged for Mr. Sapir the creator and utmost authority on SCAN in the world to visit South Africa during the second week in January 2015 to personally host a 4 day SCAN course.
Welcor in association with LSI Laboratory for Scientific Interrogation, Inc. will host this 4 day course.
Date: -                  5th to the 8th January 2015.
Cost: -                   $1200USD per student.
Venue: -               Johannesburg
Please mail me at chris@welcor.co.za for student registration forms.
We will then send you the course outline and registration documents.
Please respond asap as the seats are limited and we expect a wide interest from the legal sector.
You can find out more about SCAN at http://www.lsiscan.com/

People that will benefit from this course:

* Polygraph examiners
* Voice Stress examiners
* Lawyers
* Advocates
* Investigators
* Managers
* HR recruiters
* Police


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