Analyze more about lie detector test

Analyze more about lie detector test

The lie detector test is a means to obtain evidence in court cases, and to ascertain the character of prospective and current workers. A lot of individuals see the lie detector test intrusive and controversial. Professionals involved in this science do not like to use the term lie detector, and prefer to use polygraph. A polygraph machine monitors the levels of many different physiological functions heart rate, perspiration, etc. The individual judging the test examines the responses given and the body’s response to the questions to ascertain whether the subject is engaging in deceptive behaviors. The machine was an analog machine which would scribble lines on chart paper as the paper scrolled automatically, and today it is digital.

TheĀ lie detector uk steps the respiratory rate, the heart rate, and the quantity of sweat on the finger tips of the topic. The examiner will evaluate the outcome of the test and examine any differences in results and spikes of the behavior. The subject in question is hooked up with tubes and wires into the lie detector machine. The expert examiner will first get to know his/her subject and the subject’s version of this story. The lie detector is not used at this section of the testing procedure. The examiner uses his/her own monitoring to record and track how the subject responds. The following step is a list of specially designed questions produced by the examiner. He/she testimonials these questions with the topic before turning on the lie detector test. The true lie detector test will be about 60-70% control queries, which are general concerns lots of people have difficulty answering no too. Another 30-40% will be questions related directly to the situation at hand. The test is considered an exact science by people who are well-trained in its own processes. These scientists take into account the subject’s cultural heritage, religious beliefs, etc., and will just ask questions which will elicit true biological responses about the lie detector machine.

The men and women that Argue against the lie detector test say that there are both false positives and false negatives with this test. A false positive is where somebody tells the truth, but it reads as a lie, and a false negative is where someone lies and it reads as the reality. Some believe there is a way for someone to beat the machine by doing something like biting their lip every tip a question is posed. This elicits the exact same bodily reaction every time. Among the biggest noted problems with polygraph tests is that the inconsistency in the expert examiners. There are countries that allow virtually anyone to be a polygraph examiner, while other states require extensive, continuing certification and training. Until all of these issues surrounding the polygraph test are solved, there will be controversy concerning its practice, validity, and its use in the court.