How to prepare for a lie detector test: advice from polygraph examiner Andriy Maryniak

A polygraph test makes even people with nothing to hide nervous.
This is natural, because a lie detector records the body’s reactions to questions, and any stress can affect the results.
To help the test go as calmly as possible, Polygraph Lviv examiner Andriy Maryniak shares recommendations that will help you get an honest and accurate result.

Need an actual test rather than theory? Take the VerifEye online test — from 2,500 UAH (≈ €50), with no visit to the office, or calculate the cost of a polygraph test.

1. Why preparation matters

A polygraph does not read minds — it records physiological indicators: pulse, breathing, blood pressure, sweating.
That is why excessive nervousness can create a false impression.
To avoid this:

• get a good night’s sleep the night before;

• do not drink alcohol or energy drinks, and have your last coffee no later than 2–3 hours before the test;

• wear comfortable clothes;

• do not try to control your breathing or pulse — this only increases the tension.

Tip: treat the test like an ordinary interview.
Openness and sincerity are the best strategy.

2. How the test is conducted

The testing procedure is calm and structured.
Andriy Maryniak, a certified polygraph examiner, conducts a preliminary interview, explains how the test works and agrees the questions.
The process consists of three stages:

1. Preparation: getting acquainted, technical set-up.

2. Testing: a series of neutral and topic-related questions.

3. Analysis: processing the results and issuing the conclusion.

The test usually takes 1.5 to 3 hours.

3. When it is worth taking a polygraph test

The polygraph is not just a tool for law enforcement.
It is used in many areas:

• when hiring staff;

• during internal investigations in companies;

• when theft or data leaks come to light;

• in family matters — infidelity, trust, conflicts;

• in legal proceedings — as additional information (a forensic examination is needed for court).

Polygraph Lviv conducts tests for both private clients and businesses.

4. How to ensure accurate results

The accuracy of the test depends on the sincerity of the respondent.
Do not try to “fool” the polygraph — attempts to control your breathing or tense your muscles usually show up on the charts and the motion sensor.
If you are nervous, tell the specialist — they will help you relieve the tension.

A polygraph does not judge morality — only reactions.
The best approach is to be honest and calm.

5. The advantages of being tested at Polygraph Lviv

• modern certified equipment;

• confidentiality and security;

• an official written conclusion;

• a comfortable atmosphere with no pressure;

• an individual approach to every client.

6. Why you should take a lie detector test

Deciding to take a polygraph test is a sign of confidence and openness.
The test helps restore trust, resolve conflicts and put an end to speculation.
Andriy Maryniak stresses:

“A polygraph is not a punishment but a tool for finding the truth. It helps you understand, not condemn.”

✅ A professional polygraph test in Lviv is an honest path to trust.
Contact Polygraph Lviv for accurate, objective and confidential results.