Don Cargill
Senior Polygraph Examiner | Chairman, British & European Polygraph Association
Don Cargill the UK’s most experienced professional polygraph examine, with more than 20 years in the profession and over 19,000 polygraph examinations conducted during his career.
Don qualified as a polygraph examiner in the United States in 2006 and has since established an extensive career conducting examinations in the UK and internationally.
He is a Full Member of the American Polygraph Association (APA) and the American Association of Police Polygraphers (AAPP). Don also serves as Chairman of the British and European Polygraph Association, the UK’s leading professional associations for polygraph examiners.
Award-Winning Experience
Don’s contribution to the polygraph profession has been recognised through a number of industry awards.
In 2023, he was named Best Polygraph Examiner at the 7th Annual SME News Awards. His previous recognition includes Most Trusted Supplier of Polygraph Services 2022 and Polygraph Company of the Year 2022.
In 2022, Don received the prestigious Lifetime Achievement Award for Polygraph Excellence from the British and European Polygraph Association, recognising his contribution to the profession.
The organisation he works with, the British Polygraph Network (BPN), was named Best Polygraph Company at the 9th Annual Greater London Enterprise Awards 2026. BPN has also received the UK Enterprise Excellence Award for Polygraph Services 2024.
19,000+ Examinations
With more than 19,000 examinations behind him, Don brings an exceptional depth of practical experience to every examination.
Throughout his career, he has worked on a wide range of sensitive and high-profile matters and has been involved in a number of high-profile investigations. He also regularly delivers presentations to professional audiences in the UK and overseas.
Don’s approach is professional, impartial and discreet. He understands that a polygraph examination can involve highly sensitive personal or professional circumstances and believes every examinee should be treated with dignity, respect and confidentiality.
Innovation in Polygraph
In addition to his work as an examiner, Don developed VAST, a system described by the British Polygraph Network as the world’s first automated polygraph system.
His combination of extensive practical experience, professional leadership, international training and involvement in technological development has given him a unique perspective on the modern polygraph profession.
Professional Credentials
- 20+ years as a qualified polygraph examiner
- 19,000+ polygraph examinations conducted
- Qualified in the United States in 2006
- Full Member — American Polygraph Association (APA)
- Full Member — American Association of Police Polygraphers (AAPP)
- Chairman — British & European Polygraph Association
- Lifetime Achievement Award for Polygraph Excellence — 2022
- Best Polygraph Examiner — SME News Awards, 2023
- Most Trusted Supplier of Polygraph Services — 2022
- Developer of VAST
- Extensive experience in high-profile investigations