Classic polygraph
A detailed in-person test with a polygraph examiner.
from 3,000 UAH (≈ €60)Price calculator →Andriy Maryniak — a polygraph examiner trusted since 2012
More than 14 years of practice and over 6,000 tests. I handle the most complex cases — theft, infidelity, corruption, forensic examinations — personally in Lviv. If you are in another city or country, I will help you choose a method or recommend a fellow polygraph examiner.
14 yearsof practice since 2012
490+five-star reviews on Google
6000+tests carried out
85–89%accuracy per APA data, conclusion within 2–3 hours
Who conducts the test
I handle your test personally
I did not come to this profession by chance. As a student, when a polygraph was brought to one of our classes, I already knew: as soon as I got my diploma, this is what I would do. Since 2012, lie detection has been my work.
I am Andriy Maryniak, a psychologist by training (Lviv State University of Internal Affairs) and a polygraph examiner since 2012.
I am one of the four founders of the All-Ukrainian Association of Polygraph Examiners (2014). In 2015 I joined its Expert Council, headed the association’s office in the Lviv region and taught at its training centre.
Lie detection is not a button on an instrument — it is experience and psychology. I do not stick to one method: I choose the approach for each situation. That is why I handle the most complex cases — theft, infidelity, forensic examinations — personally.
Education and qualifications
- EducationPsychology degreeLviv State University of Internal Affairs
- 2012Practising polygraph examinerover 6,000 tests carried out
- 2014Co-founder of the All-Ukrainian Association of Polygraph Examinersmember of the Expert Council (2015), head of the Lviv regional office (2015–2017)
- 2019Advanced Polygraph SeminarAcademy for Scientific Investigative Training (Nathan J. Gordon), Kyiv
- 2023, 2025ISOPE annual seminarInternational Society of Polygraph Examiners
- 2024Advanced trainingBokarius National Scientific Centre “Institute of Forensic Examinations”, Ministry of Justice of Ukraine
- 2025PEACE Model “Interview and Investigation”IPSC / PEACE certification
- 2026VerifEye SpecialistConverus (USA) certification
Experience
Experience you cannot get from courses
I once had a project at a large enterprise: for three months in a row I tested people in corruption cases every day. Every day about three of them were guilty — and we knew for certain who. It was like testing officers of the old militia on whether they had ever taken a bribe: the answer was known in advance. Hundreds of real tests in a single project.
That is why I tried every technique and approach there: the result of each test could be checked against the facts. When a method did not work, I saw why straight away and changed tactics. That volume of real work gives you what no course can — a feel for when a person is not telling the truth.
Documents
4 ways to check for lies
EyeDetect
An automated polygraph with a report free of human bias (up to 45 min)
5,500–8,500 UAH (≈ €110–170)How does it work? →
VerifEye
For someone in another city or country — a lie detector on a smartphone
from 2,500 UAH (≈ €50)Try it for free →
StimulTest
A simple, affordable remote test.
from 900 UAH (≈ €18)per questionWhat is it? →The principles behind our work
Why people trust us with the most delicate matters
Confidentiality
Only the client receives the conclusion. We do not pass data to third parties — this is fixed in an NDA.
Objectivity
An independent conclusion without pressure from either side. We are on the side of the truth, not the client.
Speed
Testing takes 1.5–3 hours; the written conclusion is ready within 2–3 hours after the test.
Written conclusion
A clear report for you or your employer. For court — a separate forensic examination.
Where we work
Where and how we work
- Office in Lviv — 6 Dmytra Danylyshyna St., office 217
- Other cities of Ukraine — we will help you choose a method or recommend a fellow polygraph examiner proven by time and client reviews
- Abroad — we will recommend a fellow polygraph examiner in Europe
- Online VerifEye — from anywhere in the world
More than a test
Additional services
We work with modern equipment that records even the smallest changes in a person’s physiological state: classic polygraphs and EyeDetect and EyeDetect+ stations by Converus (USA).
We have our own school of polygraph examiners, the first in Lviv. You can buy an EyeDetect station from Converus, take operator training and order polygraph repairs. By individual arrangement — psychologist and detective services.
Prices →The key facts in brief
Are the results confidential?
Yes. Only the client receives the conclusion. If the client and the person tested are different people, the person tested knows before the start who will receive the result and confirms this in writing. Anything personal from the interview that is not related to the test questions does not go into the conclusion. This is fixed in a non-disclosure agreement.
How long does a test take?
On average 1.5–3 hours depending on the number of questions. The written conclusion is ready within 2–3 hours after the test, in complex cases within 24 hours.
Can it be done remotely?
Yes, with VerifEye technology — online, 10–25 minutes, from any country. All you need is a smartphone.
How much does it cost?
The price depends on the type of test and the technology. Current prices are on the prices page; I will name the exact amount after a short free consultation.
Can you fool a polygraph?
Practically no. A modern instrument records up to 9 physiological parameters at once, and an experienced examiner usually sees countermeasures — pain, medication, “folk methods” — on the charts and the motion sensor and notes them in the conclusion. You can prepare, but you cannot reliably fool it.
Why 85–89% accuracy and not “99.9%”?
“99.9%” is a marketing trick. According to the American Polygraph Association meta-analysis (2011), polygraph accuracy is 89% for a single specific incident and 85% for multi-issue screening. It depends not on the instrument but on how the tests are built for the specific situation. I do not work to a template — I prepare every test separately.
Is it legal, and is consent needed?
Yes, it is legal. Testing is voluntary and done only with written consent. Refusal is not proof of guilt. All materials and results belong to the client and are 100% confidential.
A polygraph test in your city or country
In Lviv — at our office. In other cities of Ukraine and in Europe — online or through fellow polygraph examiners proven by time and client reviews.