Does a Polygraph Really Dectect Lies?

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Many people that lie detectors aka polygraphs detect lies to tell if a person is making a true statement. The real question is.. Do they REALLY detect lies? Do they detect them truthfully? Were they used to make people think you can tell they’re lying. This information provided will tell you if they are really what everyone think they are.
Before knowing that polygraphs/ lie-detectors actually give truthful results, you have to know what they actually are. Polygraphs are lie-detecting tests that measures and records indices such as blood pressure, pulse, respiration, and skin conductivity while the person is answering questions that are asked. Polygraphs are machines that has many sensors and a heart rate cuff connected to the machine that are placed on your body. The sensors placed on your body and the heart rate cuff placed on your stomach will sense the way your body changes physically while you are answering questions that are asked. Sensors are also placed on the suspect’s fingertips. While being questioned a piece of paper will be determining your lies by a pen drawing on the paper your different rates from your body.
Lie detector tests are usually used in crime cases, banks, investigations, businesses, and many more. They are used for crime cases to see if the criminal actually committed the crime. They are used for banks because bank tellers are in the banks which carries an abundance of money. The bank tellers have to be trusted not to take the money from the bank. Investigators are tested because they have to be 100% honest investigating a case. Business people must take them because legally the government needs to know that it is a serious business also it the test has to been done legally because it can cost the bus...

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... Liars can pass lie detectors easily. One example is thinking excited thoughts. This can help them be less nervous while answering a question. They can also do mental arithmetic thoughts, altering one’s breathing pattern and biting the side of the tongue.They also say truthful people can try these techniques to pass the test. Hopefully these techniques work every time a truthful person who is nervous is taking the test.
To conclude this statement, the answer to the question “can lie detectors truthfully determine truthful statements,” is FALSE! Lie detectors can not determine truthful statements. They are fake tests and an average person can pass them with all lies. These tests are not allowed in court and nobody has to forced to take this test because they don’t always determine truthful and false statements. So if anyone thinks they always work, that is not true.

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