A lie detector is a special machine made to detect if someone is lying or telling the truth. Lie detectors are also called polygraphs and they have become very popular in recent times. Aside from being used as part of the requirements for government recruitment, lie detectors are also used in TV reality shows, especially the Jerry Springer Show in the USA, as well as, the Jeremy Kyle Show in the UK. The shows have successfully increased awareness for the lie detectors.
Lie detectors are not new; they have been around for years. In the remaining part of this write-up, we will open your eyes to some other facts you must take note of about lie detectors.
The first lie detector was made by Sir James McKenzie in 1906. However, the polygraph being used today is far more developed than what obtained in the past. The improvement has brought about an improvement in the accuracy of the results obtained from the lie detectors. The champion of modern day lie detector is William Moulton, who is a psychologist. He brought about a lot of improvement to the lie detector by incorporating the systolic blood pressure test and this has made the test to be more effective and accurate. You can get more information about the lie detector from https://www.liedetectortest.uk.
The first computerized lie detector ever made was invented some 86 years after the first lie detector. The computerization has successfully improved the effectiveness and accuracy of the polygraph. According to some experts, the lie detector machine can give up to 98% accuracy if the test is carried out by a qualified professional examiner. There are several other lie detection methods being carried out today, but none of them is as effective and accurate as the polygraph.
Lie detectors have been used in many reality TV shows, but their uses are not limited to reality TV shows. They have become important inclusions in many industries, including government establishments. Many industries and government establishments insist that their prospective employees undergo the lie detector test before being considered for employment. Aside from their use in the recruitment process, lie detectors are also used by the police to carry out certain investigations. It is used by private investigators and intelligent services. Several security agencies also use the lie detector test, including the military. The uses are widespread. Despite the 98% accuracy mentioned above, lie detector test results are not admissive as evidences in a court of law.