David Martínez is an International Polygraph Expert with 36 years of experience conducting pre-employment, periodic, and specific investigation polygraph tests. He has provided advisory services to numerous multinational companies, both nationally and internationally, helping them ensure the integrity of their personnel and operations.
A criminologist by profession and a certified Polygraph Examiner, Martínez graduated in 1988 from The National Training Center of Polygraph Science in New York. He is an active member of the Academy of Certified Polygraphists (ACP), the American Polygraph Association (APA), and the Latin American Polygraph Association (ALP), where he served as President from 1999-2000 and 2006-2008. He was also President of the Salvadoran Association of Polygraphists (ASP).
In 2016, Martínez earned the prestigious Quality Controller Certification in Polygraphy, issued by the APA, ALP, and ASTM. He currently serves on the presidential committee of the ALP, continuing to contribute his expertise to the field.
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