POLYGRAPH LIE DETECTOR TEST
We boast over 20 years of experience in intelligence gathering for clients all over the world.
FREE 30 MIN CONSULTATION | NO OBLIGATION
High Accuracy Polygraph Lie Detector Tests in the UK
State of the art technology with 6 physiological monitoring sensors & 3D laser video camera to track facial movements.
Sometimes, you get a feeling that someone is lying to you. You might have confronted your partner to no avail. You even might have already employed surveillance but come back with no hard evidence. When you feel like you’ve exhausted all possible avenues and still can’t shake the feeling that you’re being lied to, you should consider a lie detector test.
We can also help you if you’re struggling to prove your innocence. If you’ve wrongly been accused of theft from the workplace, or your partner won’t drop the idea that you’re having an affair, a negative test result can go a long way to clearing your name.
Our polygraph examiners can conduct a quick, accurate and affordable lie detector test wherever you are in the United Kingdom. Call 0800 002 9558 to discuss our lie detection services for free. Alternatively, please contact us.
How does a lie detector work?
Adrenaline causes your body to react
During the test, a trained interpreter uses a piece of equipment called a polygraph machine to measure subtle physiological reactions associated with lying. Lying causes a hormone called adrenaline to be released into the blood from the adrenal glands on the kidneys. Adrenaline causes your body to react in a variety of ways. We call this change in the body’s functions the “fight-or-flight” response.
Polygraph machines measure three physical factors associated with adrenaline. These are sweating, breathing, and heartbeat. Our device measures these through six different metrics:
- Pulse rate. This is how fast someone’s heart is beating. It’s measured in beats per minute (BPM). Elevated adrenaline levels cause the heart to beat faster.
- Heart rate variability (HRV). This is a measure of how much the time between one heartbeat and another varies. It’s how we see whether someone’s heartbeat is speeding up or slowing down. HRV is especially useful in a lie detector test because it shows us precisely when someone begins to show a fight-or-flight response in the test.
- Blood pressure. This is how much force someone’s heart is using to pump blood around your body. The heart uses more force when adrenaline levels are high than when adrenaline is at normal levels.
- Skin temperature. Skin temperature directly correlates with how much adrenaline is in your blood. This is because adrenaline causes blood to be pumped around the body more quickly than usual. The increase in blood flow causes the skin to feel hot.
- Breath control. Because adrenaline causes blood to be moved around the body at an elevated rate, breathing depth and frequency also increase to keep up. Our machine measures these changes in breathing to determine whether or not there is a stress response taking place.
- Skin conductivity. When adrenaline causes someone’s bodily functions to speed up, body temperature increases. The body has to cool itself down when this happens, causing you to sweat. As well as water, sweat contains salts, making sweat conduct electricity more efficiently than usual moisture in the skin.
The polygraph machine uses tiny, painless electrical impulses to detect how well the skin is conducting electricity. The conductivity tells us how much someone is sweating and how their sweating changes in response to a question.
Our trained interpreters analyse the results of these tests on the body and pay attention to body language and certain vocal clues. They can use this to determine whether or not someone is giving a truthful answer to a question.
Some verbal signs of lying are helpful for you to tell whether someone might be lying to you, but they aren’t as valuable in a polygraph test. While bodily responses are things that they typically can’t control, the verbal signs of lying are subconscious attempts by the liar to ease their feelings of stress.
When we conduct a lie detector test, we want to ensure that a liar can’t ease these feelings. This need for a controlled test is why we limit our interrogation to yes/no questions. We only look for changes in vocal quality (the speed of the response and the pitch and tone of voice).
rEVIEWS FROM OUR CLIENTS
EMPLOYEE ABSENTEEISM
INFIDELITY INVESTIGATION
CONFIRMING INFIDELITY
How much does a Polygraph lie detector test cost?
One lie detector test is Only £350
- Free Consultation
- Client Confidentiality
- Conducted at our own controlled office
- Test duration: 45 mins
- Same day/Next Day Service
- Fixed fee service
- No hidden costs
- Wheelchair Access
- £150 Deposit required to confirm booking
What can the polygraph lie detector be used for?
- Accusations of misconduct in the workplace
- Cheating partner investigations
- Accusations of infidelity
- Family disputes
- Accusations of theft
- Moonlighting
- Pre-employment screening
- Evidence of sexual abuse
- Clear your own name
- Proving your innocence
If you require more than one test, we can offer a bulk discount.
Please give us a call on 0800 002 9858 to discuss pricing structures. Alternatively, please Contact Us.
PRIVATE INVESTIGATION SERVICES
We’ve spent the past 20 years perfecting our surveillance techniques. Find out how surveillance can help you.
We believe a successful marriage begins with an investigation. Make sure you know who you’re welcoming into your family.
PI UK’s relationship expert has put together a list of red flags to look out for in your relationship.
Our infidelity investigator answers every question you could have about looking into unfaithful partners.
Nobody wants to fight for the right to care for their child. Find out about how our services can help.
We’ve perfected our number tracing strategy. Find out who’s calling you with help from PI UK.
Hidden assets can be damaging for hundreds of different reasons. Read about PI UK’s asset searching services.
We specialise in uncovering the past. PI UK offers private background checks for businesses and individuals.
Due Diligence helps you to ensure that your company is safe when you make major decisions.
