Alwyn Marais, the owner, polygraph examiner and investigator at Truth-Detector Polygraph & Forensic Investigations, has over a decade of local and national investigative experience. He qualified as a Forensic Psycho-physiologist through the Southern African Polygraph Federation (SAPFED) and American Polygraph Association (APA) accredited school, the International Polygraph Studies Center (IPSC), in the latest scientifically validated techniques for the polygraph. 


He is dedicated to ongoing training in the field and has attended the -  

· IPSC: Advanced Polygraph Training Seminar [2019]; 

· SAPFED: Public Training Seminar on Polygraph Testing [2019]; 

· Backster School of Lie Detection: Advanced Pre-Test Best Practice Training Course [2020];


He is registered with the Private Security Industry Regulatory Authority (PSIRA), is an authorized Officer in terms of Act 71/1962 as well as an active accredited member of the SAPFED, UKPA and the APA. 


Only the best polygraph equipment is used, as manufactured by the Lafayette Instrument Company (USA). He uses five validated sensors instead of only the minimum four required. 


Alwyn Marais  is also registered and licensed to conduct various criminal record checks, credit checks and various other background verifications through the South African Police Service, other relevant agencies and South African government departments.  

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