Polygraph for Military Personnel and Service Candidates (2026): How to Prepare

The Department of State Protection of Ukraine (UDO) has approved a new procedure for polygraph examinations — Order No. 882 of 14 August 2026. This was reported by YURLIGA on 30 September. The procedure applies to UDO servicemen and employees, as well as to those who are only hoping to join. If you are facing an examination of this kind — at the UDO, in another security agency or when enlisting in the armed forces as a foreigner — here is a short overview of what the law says, how the test is run and what rights you have.

Update, 8 October 2026. On 6 October the Ukrainian outlet Novyny.LIVE, citing the Ministry of Defence, described how the ministry vets candidates for sensitive posts. A check should take no more than seven days. Four units study the candidate: internal security, the personnel service, the anti-corruption unit and the strategic communications unit. A polygraph is not a mandatory step: a psychophysiological examination is added in exceptional cases. The results are for information only: they are not automatic grounds either for refusal or for appointment, and the final decision rests with the authorised manager. The collected data is confidential and must not be used to put pressure on a person. The ministry announced the vetting system itself back in May 2026.

What has changed at the UDO

According to YURLIGA’s summary, the UDO uses the polygraph in three situations: when selecting candidates, in personnel procedures and in internal investigations. The questions may cover possible criminal offences, links with the intelligence services of other states, citizenship of another country, disclosure of restricted information, drug use, gambling and financial obligations.

Three things that matter to the person in the chair:

• the examination is voluntary, and you can refuse at any stage;
• a candidate’s refusal means he will not be accepted for service, but in itself it is not treated as a sign that he is hiding something;
• the result is probabilistic and indicative: it suggests what to check next rather than settling the matter once and for all.

The examination materials are classed as restricted information and are kept for five years. The procedure also sets out the requirements for the polygraph examiner and the room, and the cases in which a test is postponed or stopped.

What the law says

Ukraine has no separate law on the polygraph. There are provisions in the laws governing particular services.

The UDO. Article 16 of the law on state protection expressly provides that citizens undergo a psychophysiological polygraph examination before being accepted for service or employment at the UDO, while serving military personnel and employees do so in cases determined by the Department itself. Anyone who has refused a check, including the polygraph, cannot be accepted.

Foreigners in the Armed Forces of Ukraine, the National Guard and the State Special Transport Service. Article 21-1 of the law on military duty and military service (as amended by Law No. 4019-IX of 10 October 2024) establishes that, during the special vetting, foreigners and stateless persons take a polygraph with their consent. A refusal is grounds for not accepting them for service. What is more, the person also gives written consent to such examinations for the duration of the contract, and Article 26 allows a foreign contract serviceman who has refused the examination to be discharged. The special vetting is carried out by the Security Service of Ukraine (SBU) and other bodies within a period of up to one month. According to a statement by the Ministry of Defence (February 2025), the test is conducted in a language the candidate speaks, and it is mandatory for applicants for officer posts, for posts with access to state secrets and for those whose information about themselves has raised doubts.

What this looks like from the inside can be seen in an interview by Apostrophe with fighters of the Siberian Battalion (June 2026): the volunteers mention the polygraph alongside interviews as an ordinary stage before signing a contract.

Other security and law enforcement bodies. Similar provisions exist in the laws on the State Bureau of Investigation, the Bureau of Economic Security and the National Police — an overview is given in the article on polygraph legislation.

What this means for you

The pattern is the same everywhere: you cannot be forced, but without a polygraph you will not be taken on for such service. In other words, “voluntary” here means “you decide for yourself whether to go further in the selection process”.

Your rights that follow from these provisions:

• to give or withhold written consent;
• to stop the examination at any time;
• to report illness, medication or severe fatigue — this is grounds for postponing the test;
• to expect that the materials will not be passed around: this is restricted information.

This is not legal advice. If you believe you were refused unlawfully, that is a question for a lawyer.

How the test is run and what not to do

A classic examination lasts 1.5–3 hours. Most of that time is taken up by the conversation before the test: the polygraph examiner explains the procedure, clarifies your background and goes through the questions with you. The wording must be agreed with you before the recording starts — there should be no unexpected questions. Then the sensors are attached (breathing, pulse and blood pressure, skin response), and the same questions are asked several times. You have to answer “yes” or “no”. For details, see the article on how to pass a polygraph.

What you should do:

• get a good night’s sleep and eat;
• take your prescribed medication as usual and tell the polygraph examiner about it;
• in the pre-test interview, tell everything that relates to the topic — even minor things and things from long ago;
• ask again if a question is unclear.

What not to do:

• do not drink alcohol the day before and do not take a sedative “for confidence”;
• do not go to the test ill or after a sleepless night — ask for it to be postponed;
• do not try tricks from the internet: controlling your breathing, tensing your muscles, counting in your head. Beating the polygraph is practically impossible — the examiner usually sees attempts at countermeasures, and they look worse than an honest answer;
• do not play things down. The accuracy of the classic polygraph is 85–89% (American Polygraph Association meta-analysis, 2011); no method gives 100%, but what was concealed in the interview almost always produces a reaction in the test.

A practitioner’s comment. I have been conducting examinations since 2012. Almost everyone is nervous, and that is normal: nervousness does not spoil the result, because your reactions to different questions are compared with one another. The most common mistake candidates make is to “tidy up” the past a little in the interview: to name a smaller debt, or to keep quiet about an old episode involving drugs or betting. These are exactly the topics that make up the bulk of personnel screening.

Questions and answers

Can I refuse a polygraph when joining the service?

Yes, the examination is voluntary. But at the UDO, and for foreigners in the armed forces, a refusal means you will not be accepted for service. In a private company it is different: there you cannot be dismissed for refusing.

Can I “practise” beforehand with a private polygraph examiner?

It will not replace the agency’s own examination: the services conduct it with their own specialists. But you can take an ordinary polygraph test to see the procedure and get rid of the fear of the unknown. I see clients in person in Lviv (6 Danylyshyna St., office 217); a classic test costs 3,000–8,000 UAH (≈ €59–160). For other cities there is the VerifEye online test, taken on a smartphone.

What if the result goes against me even though I was telling the truth?

That is possible, because the result is probabilistic. The UDO procedure expressly calls it indicative: it is a reason for an additional check, not proof. A polygraph examiner’s report on its own is not evidence in court either.