An inventor, entrepreneur, decorated police officer, teacher, seasoned helicopter pilot (1500 hrs. pilot-in-command), sergeant in the Infantry, photographer, and successful businessman, Charles Humble is best known and widely regarded as the “Father” of voice stress analysis.  He is the founder of the NITV and became a voice stress analyst in 1974, three years after the introduction of the first voice stress analysis instrument. Charles is also a licensed polygraph examiner. Over the past thirty-four years, Charles developed what is now accepted as the “Gold Standard” for VSA training, the NITV Certified Examiners Course.  The course is based on the experience he gained from nearly 14,000 examinations that he conducted during his career, as well as input he received from a wide variety of law enforcement agencies throughout the United States.  As voice stress companies came and went over the years, Charles led the NITV to become what is now the undisputed leader in the field of voice stress analysis.  In 1986 Charles began development of the Computer Voice Stress Analyzer and debuted it in 1988. The CVSA has since become the only VSA widely accepted in the law enforcement community with nearly 1,900 agencies, including the US military, utilizing the system. The NITV recently introduced  the CVSA II, (watch the CVSA movie here) which contains a revolutionary, patented automatic scoring algorithm developed by Charles, and available only on the CVSA II from the NITV.  Although he retired as CEO of NITV in 2006, Charles remains involved with the NITV Board of Directors, and other professional organizations to promote the profession of Computer Voice Stress Analysis in law enforcement and the military.