Andriy Maryniak — polygraph examiner in Lviv
Andriy Maryniak is a certified polygraph examiner with many years of hands-on experience conducting psychophysiological examinations in Lviv and the Lviv region. In particular, he specialises in lie detection using modern equipment — the classic polygraph and the innovative EyeDetect system developed by Converus.
Andriy Maryniak’s education and professional training
First of all, Andriy Maryniak received specialised training at leading institutions that train polygraph examiners. He also continually upgrades his qualifications by attending international seminars and training courses on questioning techniques and the analysis of psychophysiological reactions. As a result, his core approaches to testing are based on the standards of the American Polygraph Association (APA).
- International-standard polygraph examiner certificate
- VerifEye Specialist certificate (Converus, 2026)
- Advanced training courses in the psychology of lying
- Training in ZCT, MGQT and PLT techniques
- Regular workshops on analysing facial micro-expressions
Andriy Maryniak’s professional experience
Over his years of practice, Andriy Maryniak has carried out more than 6,000 tests of various kinds — from pre-employment screening to internal investigations and family disputes. Andriy Maryniak’s clients include private individuals, small and medium-sized businesses, law firms and private detectives in Lviv. His areas of work include:
- Staff screening — pre-employment screening and routine checks of employees
- Internal investigations — establishing involvement in theft, fraud or disclosure of trade secrets
- Family matters — infidelity tests, uncovering hidden circumstances in relationships
- Testing for drug use — for employers and parents
- Tests for private detectives and lawyers — as additional information in disputes
Methods and equipment Andriy Maryniak works with
In his work, Andriy Maryniak uses certified equipment from the world’s leading manufacturers. In particular, combining the classic polygraph with EyeDetect technology (based on oculography, i.e. eye tracking) makes it possible to achieve highly accurate results. In addition, every test comes with a detailed record and a conclusion, which the client receives on the day of the test. The methodological basis is described in the “Polygraph” article on Wikipedia.
Why clients choose Andriy Maryniak
So, the main advantages of working with this expert are:
- Many years of hands-on experience in Lviv
- Confidentiality and an ethical approach to every client
- Use of two independent testing methods
- Objective conclusions based on scientifically grounded methods
- A conveniently located office in Lviv, close to the city centre
- Flexible hours, including weekends by arrangement
How to book a consultation with Andriy Maryniak
You can book a consultation or a test with Andriy Maryniak by phone, using the number given on the contacts page. First, appointments are by prior booking only, in a specially equipped office in Lviv. Second, before the test the expert holds a free preliminary consultation, at which the questions, the format and the approximate length of the test are agreed. A standard procedure usually takes 1.5 to 3 hours, depending on the topic and the number of questions. You can find out more about the cost of services and the available testing packages on the prices page. If you still have questions about the procedure, answers to the most common ones are collected in the FAQ section.
Polygraph in other cities
A polygraph test in your city — we will help you choose a method or recommend a fellow polygraph examiner: Kyiv, Ternopil, Lutsk, Rivne, Vinnytsia, Odesa, Dnipro, Chernivtsi, and also in Lviv.