Nanny polygraph test: price, questions and how the lie detector procedure works

Nanny polygraph test: price, questions and how the procedure works

You let a stranger into your home and entrust them with what is most precious to you — your child. And even if the nanny has good references, a pleasant appearance and experience, a parent’s anxiety still remains.

A lie detector test for a nanny is not about paranoia. It is about safety, peace of mind and parental responsibility.

Today more and more families order a lie detector test for domestic staff before they even start work. And this is becoming the norm for conscientious parents in Kyiv, Lviv and other Ukrainian cities.

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

When should a nanny take a polygraph test?

We see two main situations in which people contact Polygraph Lviv.

1. Screening a nanny before she starts work (Prevention)

The wisest decision is to test the person before you leave them alone with your child. A polygraph helps establish:

• whether there were any thefts at previous places of work;

• whether there were any hidden conflicts with children (shouting, intimidation, physical force);

• whether the candidate is hiding any addictions (alcohol, slot machines, drugs);

• whether her references and the facts in her CV are true.

Important: A good nanny is not afraid of being tested. She has nothing to hide, and she understands your wish to keep your child safe. Refusing a polygraph test is in itself a serious reason to stop and think.

2. An unplanned test: when warning signs appear

Sometimes parents come to us when their intuition is already screaming that something is wrong:

• small sums of money, cosmetics or children’s things go missing;

• the child has become afraid of the nanny or withdrawn;

• bruises of unknown origin have appeared;

• you suspect the nanny is busy with her own affairs, leaving the child unsupervised.

In such cases, a lie detector test for the nanny helps you quickly find out the truth and either put your mind at rest or dismiss a dangerous person immediately.

What exactly can a lie detector test reveal about domestic staff?

A polygraph goes deeper than a surveillance camera. A camera shows only what has come into its field of view. A polygraph reveals facts from the past and hidden intentions.

The top 5 risks we test for:

1. Aggression: Has there been any physical or psychological aggression towards children in the past?

2. Dishonesty: Has the nanny stolen from previous employers?

3. Addictions: Is there a hidden craving for alcohol or drugs?

4. Health: Is she hiding any dangerous illnesses (tuberculosis, hepatitis), and are her medical certificates genuine?

5. Confidentiality: Is she a “spotter” for thieves, and has she passed on information about the family’s wealth to third parties?

This is especially relevant for families looking to check a nanny in Kyiv or Lviv, where the domestic staff market is oversaturated and references are often written “as a favour to a friend”.

Hidden cameras or a polygraph for a nanny: which to choose?

Parents often hesitate. Let’s compare:

Conclusion: A camera is for monitoring what is happening right now.

A polygraph is for selecting a safe person.

The best result comes from combining the two, but the polygraph is the more ethical and faster method.

How the test works: it is not an interrogation

We understand how delicate the situation is. Parents are often afraid of offending a good person by showing distrust.

At Polygraph Lviv, the procedure is built on respect:

1. Preliminary consultation: We talk with you (the client) to draw up a list of suspicions or questions.

2. Consent: The nanny signs a voluntary consent form. We do not work without it.

3. Testing: The procedure takes place in a calm atmosphere.

4. Result: The expert gives the conclusion on the same day.

🚀 EyeDetect technology: stress-free testing

We also offer a unique service — EyeDetect. It is a modern method of lie detection based on the reaction of the pupils.

• No sensors on the body.

• The test takes up to 45 minutes, including the result.

• Ideal for sensitive people who are afraid of the “wires” of a classic polygraph.

Sample lie detector questions for a nanny

The questions are always adapted to your situation, but here is the basic set. The only possible answers are “Yes” or “No”:

• “Have you ever hit someone else’s child?”

• “Did you steal money or valuables from your previous employers?”

• “Have you left children unsupervised in dangerous situations?”

• “Have you ever given a child medicine (sleeping pills) without the parents’ knowledge to make the child sleep?”

• “Are you hiding an addiction — any addiction at all?”

No questions about personal life, religion or politics. Only professional risks.

🚩 Checklist: 10 signs that your nanny needs to be tested urgently

If you have noticed at least 2 items from this list, don’t delay:

1. ✅ The child’s behaviour has changed abruptly (they have become tearful or aggressive).

2. ✅ Bruises have appeared on the child’s body, and the nanny cannot clearly explain where they came from.

3. ✅ Small sums of money, food or cosmetics are disappearing from the home.

4. ✅ The nanny avoids video calls or switches off her phone during working hours.

5. ✅ Frequent sick days or time off without a doctor’s note.

6. ✅ You hear the nanny having strange phone conversations in a whisper.

7. ✅ She refuses to give you the direct contact details of her previous employers.

8. ✅ An aggressive reaction to simple remarks.

9. ✅ The child asks outright “not to be left with that lady”.

10. ✅ Your intuition. An inner sense of alarm is the most important signal of all.

A case from practice (Lviv)

A young family came to us recently. Their child (aged 3) had started sleeping badly and was afraid of bath time, despite having loved water before. The nanny had worked for the family for 4 months and had perfect references.

The polygraph test showed that the nanny had used force when the child did not want to go into the bath and had frightened the child with the “bogeyman”. There was no camera in the bathroom. The parents dismissed the nanny that same day. The child gradually calmed down again.

FAQ: parents’ frequently asked questions

Is it legal to give a nanny a polygraph test?

Yes, it is completely legal, provided the nanny gives her voluntary written consent. We always sign the relevant documents before testing begins.

How much does a nanny test cost?

The price depends on the chosen method (classic polygraph or EyeDetect) and the number of questions. Send us a request and we will calculate the cost for your case. It is cheaper than the cost of frayed nerves or stolen property.

Can a nanny fool the lie detector?

Practically no. Countermeasures — controlled breathing, muscle tension, sedatives — usually show up on the charts and the motion sensor. What is more, we use cross-checking methods, which reduce the probability of error.

Why do people choose Polygraph Lviv?

• Experience since 2012: We know the psychology of domestic staff.

• Confidentiality: Your neighbours and acquaintances will not find out about the test.

• Mobility: We conduct tests in person in Lviv, where a home visit is possible; in Kyiv, Odesa, Dnipro and other cities we will recommend a fellow polygraph examiner or the online VerifEye test.

• Speed: You receive an official conclusion on the day of the test!

Order peace of mind for your family

The cost of testing a nanny is nothing compared with your child’s safety. Don’t wait for alarm bells to ring. Test your staff and sleep soundly.

📞 Book a free consultation:

+380 96 96 111 96 (Viber, Telegram)

👉 Send a request via the website

Your peace of mind is the most important investment in your little one’s happy childhood.