Commitment to Quality

Crystal Health Group's commitment to quality means that all the polygraph examiners working in our polygraph testing (lie detector testing) clinics or providing mobile examination services:

  • Members of the British and European Polygraph Association and/or the American Polygraph Association
  • Members of the British Polygraph Network.
  • Fully qualified and highly experienced, having gained qualification from a facility accredited by the American Polygraph Association
  • Continuously assessed on quality of performance by the Chairman of the British and European Polygraph Association Don Cargill.
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