EyeDetect FAQ

With EyeDetect a single-issue test is up to 91 percent accurate.

Using EyeDetect+ (with polygraph) 97-99 percent outcome confidence.

EyeDetect (optical only) – up to  30 minutes

EyeDetect+ (with polygraph) – up to 60 minutes

There are normally 3 sets of questions/statements depending on type of test.  All of which requires a True or False response.

The first set of questions/statements will be specific to the issue of interest such as infidelity or theft for example.

The second and third set of questions/statements are used to help determine a baseline reaction when the examinee is telling the truth. An example of this could be 1 + 1 = 2?  (True) or Many people drink coffee or tea in the morning (True). The computer will also require to get a baseline reaction for when the examinee is lying.  So the examinee will also be asked questions about themselves that they are required to lie about, an example of this could be “In my entire life as an adult, I have never broken a rule.” Since everyone has broken a rule at some point in life the examinee would deliberately lie and answer “False.” 

Practice test(s) will be conducted to ensure the examinee is fully focused on the questions/statements presented to them.

A detailed test report with the results is provided within 12 hours.

Currently there is no evidence to suggest that EyeDetect can be cheated. Some examinees attempt to “fool” the system by implementing countermeasures. A countermeasure is an action taken by a person to defeat or distort the test.

Countermeasures that we know do not work are:

• Closing eyes or squinting when answering questions are easily observed by the test examiner and the test will be stopped.
• If the examinee gives a ‘false’ response to most questions or is responding randomly or choosing not to respond to a significant number of questions, EyeDetect will observe these patterns of behaviour,  returning a “not credible” test score and the examinee will fail the test.

Other examples of countermeasures include physical movement, mental exercise, or the use of drugs. The goal of using countermeasures is to alter physiological changes to try and affect test results. However, in the case of EyeDetect, eye behavior changes observed during questioning are related to increases in cognitive load and are involuntary. They cannot be controlled.

In addition, the fast pace of questions administered during an EyeDetect test make implementing an effective countermeasure extremely challenging.

For privacy reasons and to minimise distractions, others should not be able to see the examinee during the test, except for the Test Examiner.

Signed parental consent is required for children aged under 18 years.

Most prescription drugs, including anti-anxiety and anti-depressant medication, will not interfere with the accuracy of the test, but please check with our customer support team before booking a test.

EyeDetect has been used to successfully test examinees that use anti-depressants and anti-anxiety medications.

Alcohol and recreational drugs should not be consumed for at least 24 hours before a test.

Test results may be affected by dry eyes and excessive eye makeup. In these circumstances, the test validator will ensure that EyeDetect can track the examinee’s eye behaviour using a simple calibration method.

EyeDetect is a reading test. However, if an examinee’s reading skills are poor the Converus Audio MCT testing protocol can be used. 

Other conditions that may distort the outcome of the test include:

• Multiple system atrophy (MSA)
• Brain or spinal injury
• Disorders that affect the brain stem and hypothalamus, autonomic ganglia or spinal cord
• Parkinson´s disease
• Multiple sclerosis (MS)
• Diabetes mellitus
• Any disease or condition that causes hypotension 

Conditions that do not affect the outcome of the test include:

• Heart arrhythmia or related issues
• High functioning Asperger´s syndrome
• ADD – Attention Deficit Disorder
• Anxiety Disorder
• PTSD – Post Traumatic Stress Disorder
• Pregnancy
• Asthma or other related respiratory diseases

The cost of a single EyeDetect Optical Test is £345 inclusive of VAT.
The cost of a couples EyeDetect Optical Test is £545 inclusive of VAT.
Three or more tests taken on the same day at the same location are £245 inclusive of VAT each.

—————————————————————————————————————————————-

The cost of a single EyeDetect+ with Polygraph Test is £595 inclusive of VAT.
The cost of a couples EyeDetect+ with Polygraph Test is £895 inclusive of VAT.
Three or more tests taken on the same day at the same location are £395 inclusive of VAT each.

The price includes the services of a licensed, fully trained Converus test examiner and a printed report of the results.

The booking fee for an EyeDetect test confirms the examinee’s intention to take it. Booking slots are scheduled with several tests per day being conducted. If the booking is cancelled without giving the required minimum 48 hours’ notice, it disrupts the test examiner’s schedule and incurs test licensing costs. 

In addition, a guilty party may show proof of booking a test to give the impression that they have nothing to hide, then cancel it. Please ensure, when booking a test slot for an examinee that they are available and agreeable to attend the appointment. This avoids the loss of fees paid.

In this way we can keep EyeDetect tests at reasonable and competitive prices.

You can book a test using the secure and simple to use booking system on our website. 

In most cases you will be able to arrange a test within one or two days of your order being confirmed. For tests that need to be conducted urgently (next day) we require payment in full at the time of booking.

There have been numerous peer reviewed articles published on the accuracy of the EyeDetect technology and you can access them all by clicking here.

Broadly, these ocular motor deception tests are between 88 and 91% accurate depending on the type of test. Scientists on the Cornverus Science Team continue to work on methods to improve accuracy. The data from frequent field studies assist them in optimising the algorithm to increase overall accuracy.

An EyeDetect test is automated and administered by a computer. When the analysis is complete, of the subject’s responses and eye behaviour data, the Converus Credibility Score is calculated.

The algorithm measures and records variables that include blink rates, reading behaviour, gaze fixation, pupil dilation, question response time, accuracy of responses and other variables. The reason for analysing these variables is to achieve a test result of deceptive or credible.

The scoring method used by EyeDetect, seeks to “maximise the likelihood” of the categorisation of deceptive or credible. If the test results in a Converus Credibility Score of 50 to 99, it indicates credibility. However, deception is indicated if the score is between 1 and 49.

The nearer a score is to 99 the higher the credibility of the subject is. Scores closer to 50 indicate minimal credibility.

When the score has been calculated, a test report is created within minutes.

Credibility Assessment Technologies LLC was formed In October 2009, a company specifically set up to market the new lie detector test technology. In September 2013, the technology was branded ‘EyeDetect’.

On 12 December 2013, the company was officially renamed Converus, Inc. The name Converus is derived from two Latin words: con (meaning “with”) and verus (meaning “truth”). The company’s head office is currently in Lehi, Utah, USA.

Eye-Detect.UK are licensed test examiners for Converus.

It can be submitted but it is at the discretion of the judge as to whether it will be admissible. 

In the USA case – State of New Mexico (plaintiff) vs. John Rael (defendant), Judge Jeff F. McElroy allowed EyeDetect evidence to be admitted (Daubert motion). This criminal sexual assault case was heard in the 8th District Judicial Court, County of Taos, New Mexico in May 2018. Mark Handler of Converus was the expert witness.