Manufacturing remote lie detectors

From a distance, shine a ray on the person to measure the person's psychophysical response to the skin. Americans are building a remote lie test device.

Lie test equipment is currently in common use in the US.The inspected person is fitted with sensors to check for lies.

The Department of Defense (DoD) has just announced a plan to develop a lie test machine.

This machine can be used without letting the object detect they are being inspected.

The Remote Personnel Assessment (RPA) will also be used to accurately determine where soldiers hide in the battlefield.

Or even, the device can detect signs of stress that could indicate the object is a terrorist or a suicide bomber.

In the notice board calling for this plan on the DoD website, contractors will have a deadline up to January 13 to develop options for RPA development.

RPA can use shortwave or laser response to human skin to evaluate different types of physiological parameters without having to be wired or exposed to human skin.

In the near future, people just need to stay far away, shine a ray on them that can detect that human expression lies

The device will illuminate a 'moving and without the cooperation of the subject', the DoD is expected, and they will rely on reaction signs to calculate the impulse, respiratory rate, and changes in conductivity, known as 'skin-induced reaction'.

DoD affirmed that RPA will identify the physiology of the subject. For example, if the subject feels stressed or confused, it is because they are lying. So the RPA will also be able to use a remote lie test device during the criminal investigation.

But finding ways to implement DoD's announcement will pose many real challenges . Robert Prance, an electrical engineer and expert in the field of 'non-invasive' sensors at Sussex University , Anh, said: 'It is possible to capture the breath speed with infrared laser through sensing the vibrations in the chest. But to measure a pulse through clothing is a very difficult problem. '

If the RPA is actually produced, it could cause an argument.

A remote lie detector will be more difficult than other common heart rate testing devices. Steve Wright, an expert at Leeds Metropolitan University, UK, warned that the RPA could always bring a chill to everyone in everyday life.

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