When booking a lie detector test in Australia, many people ask: “Should I choose Polygraph or EyeDetect?” Both are scientifically validated, but each works differently. The truth? The most accurate results come from using both together.
Australian Polygraph Services is the only company in Australia that combines Polygraph + EyeDetect in the same session, achieving 95–98% accuracy. Here’s how they compare.
What Is a Polygraph Test?
The polygraph—often called a “lie detector”—measures physiological changes such as:
- Heart rate & blood pressure
- Breathing rate
- Skin conductivity (sweating)
These responses are analysed by a trained examiner using validated forensic questioning techniques. Polygraph testing is highly effective for specific-issue investigations such as theft, fraud, or infidelity.
What Is EyeDetect?
EyeDetect is an advanced, computerised deception detection system that measures:
- Pupil dilation
- Micro eye movements
- Cognitive load and stress indicators
Unlike a polygraph, EyeDetect doesn’t require physical sensors—it uses a high-speed infrared camera to detect involuntary eye responses while the subject answers questions on-screen. EyeDetect measures up to 350,000 metrics during a test, something that polygraph testing is unable to achieve.
Polygraph vs EyeDetect: Which Is Better?
| Feature | Polygraph | EyeDetect |
|---|---|---|
| Technology | Measures physiological changes | Measures cognitive stress via eye responses |
| Accuracy | 85–90% (when used alone) | 86–90% (when used alone) |
| Best Use | Relationship, workplace & legal investigations | Relationship, workplace & legal investigations |
| Manipulation Risk | Low (if examiner is skilled) | Extremely low (eye responses are involuntary) |
Why Use Both? Dual Verification = Forensic-Level Certainty
While each method is accurate on its own, combining them provides cross-verification, making deception almost impossible to hide. This is why Australian Polygraph Services achieves 97–98% accuracy, the highest in Australia.
How Much Does Dual Testing Cost?
Standard single-method testing costs $850–$1,900. Dual-method testing may cost slightly more but delivers significantly higher reliability. For details, read: How Much Does a Polygraph Test Cost in Australia?
Which Should You Choose?
- For personal disputes (infidelity, theft): Polygraph alone may be enough.
- For legal or workplace investigations: Dual testing is strongly recommended.
- For quick online screenings: EyeDetect is fast and discreet.
Book Australia’s Most Accurate Lie Detector Test
For results you can trust, book with the only provider in Australia offering Polygraph + EyeDetect in the same session. Visit www.polygraph.com.au.