Request a quotation

A professional lie detector test, conducted by a competent and experienced professional polygraph examiner, is your reliable step towards uncovering the truth in almost any scenario.
At Global Polygraph Solutions our prices, like our approach and the tests we conduct, are reasonable and transparent.

The cost varies as it depends on a number of issues:

  • The type of test being conducted.
  • The location of the examination
  • The time and date of the examination – weekends are more expensive
  • The number of examinees

The cost of a polygraph examination for a single diagnostic test in the London area is from £440.

The retainer you are requested to pay when booking is “to retain the services of an examiner” at the allocated time. It instigates a process: the examiner and meeting rooms are booked, so it is not normally refundable.

Please use the form below to request a quotation or to enquire about availability.


For a confidential consultation

Please Call +44 (0) 7770 464472 in the UK

Contact Information

Office hours:
Monday to Friday: 08:30 to 21:00
Saturday and Sunday: 10:00 to 19:00

If we are engaged in consultation when you call, please leave a message and we will contact you as soon as possible.

Lie Detector Test Services

Private Lie Detector Test
  • Care-providers and Domestic Staff
  • Theft and Assault
  • Infidelity
  • Paternity Testing
  • Family Disputes
  • Sexual Abuse
Corporate Lie Detector Test
  • Corporate Investigations
  • Employment Screening
Government Lie Detector Test
  • Terrorism
  • Criminal Cases
  • Secrecy Clearance

Polygraph test? Lie detector test? Which is correct?

The term “polygraph” means “many writings”. It’s named after the testing procedure: several physiological responses are measured at the same time to detect signs of deception. This discipline is called forensic psychophysiology.

The combination of “psychology” and “physiology” refers to the relationship of the mind and body;  the Polygraph Instrument measures physical responses to thoughts and emotions. (For this reason a polygraph examiner is also known as a forensic psychophysiologist.) A polygraph instrument  is used in performing lie detector tests, so both terms are used interchangeably.

COVID-19: Additional safety precautions for clients

Container with alcohol gel, gloves and surgical mask on the light blue background

Ensuring your safety during our polygraph tests

At Global Polygraph Solutions we pride ourselves on exceeding the expectations of our clients, and we recognise that safety is of paramount importance. In order to mitigate increased risks when undertaking a lie detector test in the current coronavirus environment, we have introduced measures that you can read more about here.