Why We Use EyeDetect Instead of a Polygraph

Almost every lie detection company in the UK offers a polygraph. We use EyeDetect®, a computer-based test that measures involuntary eye behaviour rather than body responses, and clients reasonably ask why.

Four reasons, and one honest caveat.

1. Nothing is attached to the body

A polygraph needs a blood pressure cuff, chest and abdominal breathing sensors and finger electrodes. For a lot of people — particularly in relationship and family cases, and for anyone who has been through a police interview — that setup is itself distressing.

EyeDetect® uses a camera in front of a screen. You sit down, read statements and press a button. It feels like a computer task, not a procedure.

2. The scoring is automated

Polygraph outcomes depend on an examiner reading a chart. Standards and quality control exist, but subjectivity is inherent, and disputed results often become arguments about the examiner rather than the data.

EyeDetect® data is scored by algorithm against a validated model, which means the same data produces the same outcome regardless of who ran the appointment — and a verbal result on the same day.

3. It does not depend on arousal

A polygraph reads the autonomic nervous system, so anxious examinees are a recognised challenge and the classic countermeasures — controlled breathing, self-inflicted pain — all target those signals.

Eye behaviour reflects cognitive load rather than fear. The measurements are sampled many times per second and are not under conscious control, so nerves matter less and countermeasure folklore does not apply.

4. Practicality on the road

We are a mobile service travelling from Darlington across the UK and Ireland. A 30-minute examination on a laptop and camera sets up in a living room, an office or a hired meeting room with no wiring and no clinic.

That is what lets us offer home visits as standard rather than as a premium extra.

The honest caveat

The polygraph has decades of research behind it and, in specific settings such as post-conviction sex offender monitoring, is the established instrument with a procedural role that eye-tracking does not have.

Accuracy is broadly comparable: EyeDetect® is 86-88% accurate on validated question sets, and a well-run polygraph reports figures in a similar range. Neither is certain, and we say so in every report.

What choosing it means for your appointment

The technology decision is really a service decision. Because there is no cuff, no chest bands and no electrodes, an examination can be run properly at a kitchen table — which is why we are able to offer home visits across the UK rather than asking people to travel to a clinic.

It also shortens the day. A 30-minute recorded test inside a 90-minute visit means we can cover several appointments in a region, keep prices at a fixed £495 base fee with travel quoted up front, and offer evening and weekend slots that a clinic-based service cannot.

Where a traditional polygraph still has a place

We would rather be straight about this than pretend one method wins everything. A polygraph allows an examiner to probe interactively, follow a reaction and adapt questioning in the moment. Some specialist work, particularly long-running monitoring programmes, is built around that.

For the cases we handle most — a specific, closed question about a past event, answered once, privately, with a written outcome — eye-based testing is faster, less stressful, scored consistently and easier to deliver to someone's door. That is the trade we have chosen, and we tell clients what it does and does not cover before they book.

Frequently asked questions

Is EyeDetect as accurate as a polygraph?

Broadly, yes — 86-88% on validated question sets, comparable to a well-run polygraph. Neither method is 100% accurate.

Do you offer polygraph testing too?

We use EyeDetect® eye-tracking testing. Most people searching for a polygraph are looking for a reliable lie detector test, which is exactly what we provide.

Which is better for court-related matters?

Neither is automatically admissible in UK court. What matters is a clear written report and a properly documented question set — see our guide on admissibility.

Is EyeDetect® accepted in UK courts?

No lie detection method is treated as primary evidence of fact in UK courts. Reports are used to inform decisions, support investigations and guide negotiations rather than to prove a case on their own.

Can I have a traditional polygraph instead?

Our service is built around eye-based testing. If your situation genuinely needs interactive polygraph questioning, tell us when you enquire and we will say so plainly rather than sell you the wrong test.

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