If you’re about to take a lie detector test, you’re probably wondering how it works, how accurate it is, and what to expect. Whether it’s for a relationship issue, workplace investigation, or legal dispute, preparation is key.
Here are the 5 most important things you should know before booking a polygraph or lie detector test in Australia.
1. Understand How Much It Costs
The cost of a polygraph test in Australia ranges from $850 to $1,900. Prices vary based on:
- Online vs In-Person: Online tests (via EyeDetect) are cheaper and best for single-issue questions.
- Case Complexity: Multiple-issue tests cost more than single-issue investigations.
- Examiner Experience: Always choose accredited, experienced professionals for reliable results.
For a detailed cost breakdown, see: ➡ How Much Does a Polygraph Test Cost in Australia?
2. Accuracy Matters More Than Price
Not all lie detector tests are equal. Standard polygraph testing is 85–90% accurate, but Australian Polygraph Services achieves 97–98% accuracy by combining Polygraph + EyeDetect technology.
This dual-method approach cross-verifies results, making deception almost impossible to hide—a major advantage over cheaper, single-technology providers.
Learn more here: ➡ Are Lie Detector Tests Accurate?
3. Know What Questions Will Be Asked
Polygraph tests are most accurate when focused on a single specific issue. The examiner will:
- Conduct a pre-test interview to clarify the issue.
- Ask carefully structured relevant questions.
- Include neutral and comparison questions to establish baseline responses.
Being honest during the pre-test interview is critical for accurate results.
4. Relax – Nervousness Won’t Affect the Outcome
Many people worry that being nervous will make them “fail” the test. In reality, trained examiners differentiate between normal nervousness and deceptive stress responses.
EyeDetect adds another layer of certainty by measuring involuntary eye movements and cognitive stress, which can’t be faked or influenced by nerves.
5. Choose the Right Provider
The truth of your results depends on choosing a qualified and reputable service. Australian Polygraph Services is the only provider in Australia offering Polygraph + EyeDetect in the same session, making it the gold standard for lie detection.
Book Your Test With Confidence
If you need forensic-level accuracy for a relationship issue, workplace investigation, or legal dispute, book with Australia’s most trusted lie detection experts.
✅ Need Answers You Can Trust?
Get 97–98% accurate results with Australia’s only Polygraph + EyeDetect provider.📅 Book Now