NADAC is the largest privately owned Polygraph Company in The UK, with its Head Office based in London. In addition to undertaking lie detector testing throughout the UK, NADAC is able to provide polygraph services on an International basis.

We specialise in providing highly confidential polygraph testing for the Corporate sector, Government and Private individuals.

Our examiners have all undertaken advanced polygraph training and they use the latest state of the art computerised instruments as well as being fully conversant with the most up to date techniques.

NADAC are also the exclusive suppliers of Polygraph Services to G4S in the UK & Ireland Region.

All NADAC examiners have also undertaken specialist polygraph training for Post Conviction Sex Offender Testing (PCSOT).

The founding directors Cargill & Penner were the official polygraph lie detection experts for the Trisha Goddard show which was shown on channel 5.

NADAC`s  Managing Director Don Cargill  is the current Chairman of the prestigious British and European Polygraph Association (BEPA) as well as being a full member of the American Polygraph Association (APA).

In addition to being a NADAC Director, Nadia Penner is also a Board Director of the BEPA and a Full member of the APA.

Nadia is the Course Director at the British Polygraph Academy and the only qualified primary polygraph instructor in the UK.

NADAC Directors are the owners of the British Polygraph Academy which is approved by the American Polygraph Association.

In addition The British Polygraph Academy is also accredited by the by British Accreditation Council for independent further and higher education as a short course provider. Being approved by the BAC means International students are able to able to enter the UK and study at this Academy

Our International team of examiners has also conducted tests in 10 counties from South America to Europe.

NADAC can also provide a leading multi-lingual female examiner, who is one of our main board Directors.

NADAC is also part of the British Polygraph Network.

Whether you are a a private individual looking to verify the truth, corporate company requiring in-house security assistance, or a government agency seeking to verify specific criminal issues or activities – NADAC can help.

Please click one of the appropriate links below:-

Corporate Polygraph ServicesGovernment Polygraph ServicesPrivate Individuals Polygraph Services