Finding information on lie detectors is easy. A police station can give you information on lie detectors. There are now lie detectors for cell phone applications. However, using the applications on phone is not a good source of proof to tell if someone is lying or not.
yes, that's what cops use. but The ones that they sell in stores don't work at all.
A: Drama B: Viewer Suspense C: To get the truth Mostly likely A+B,
Lie detectors, or polygraph machines as they're more officially known, are large contraptions that are filled with buttons, levers, paper, and measuring devices. They have been used for years in law enforcement to detect whether or not someone is actually lying to officials. The reason why people would lie to law enforcement officials is obvious - they committed a crime that they don't want to get caught for. Lie detectors can help solve this problem by asking a person who's strapped to a lie detector several questions and then analyzing the results. However, lie detectors still aren't permissible in court. This means that should a person fail a lie detector, they will not be able to be proven as lying in a court of law. And likewise, a person will not be able to use the results of a lie detector test to prove that they are telling the truth. This is because lie detectors can't actually detect if a person is lying. They can only tell if the person is displaying deceptive behaviour.
technology that makes use of motion detectors
No, they are called Lie Detectors. Maybe Smoke detector might apply to their use by Fire Marshals investigating Arson suspects! not funny.
Because, lie detectors are not always 100% accurate. Therefore, people dont tend to use them because they are not always right
I have more then one metal detector , and choose my 2nd in line for quick hunts outta the collection of detectors I have .
Photoelectric smoke detectors use a light beam to detect smoke particles, while ionization smoke detectors use radioactive particles to detect smoke. Photoelectric detectors are better at detecting smoldering fires, while ionization detectors are more sensitive to fast-flaming fires.
No, NASA did not invent smoke detectors. Smoke detectors were actually invented by George Andrew Darby in 1902. NASA has, however, improved smoke detectors for use in spacecraft and space stations.
Radar detectors are legal to use in Nevada, but as you stated they are illegal to sell.
Ionization smoke detectors use a small amount of radioactive material to ionize the air, while photoelectric smoke detectors use a light beam to detect smoke particles. Ionization detectors are better at detecting fast-flaming fires, while photoelectric detectors are more sensitive to slow-smoldering fires.