The art of lie detection has been practiced since the early days of civilization. The first documented case was in the Bible. It involved the observation of two women who claimed to be the mother of a baby. King Solomon decided the best way to determine the true mother was by dividing the baby in half and following the reactions of the women. There were also documented cases in India that involved forcing a suspect into a dark room with an asp. Those that grabbed the asp and lived to tell about it were deemed innocent. Those that survived were few and far between.
There has been much advancement in the science involved in law enforcement. One of the greatest involves the evolution of lie detection. It has been a huge factor in provi
There are many advantages and disadvantages of voice stress analysis. One advantage of voice stress analysis is that there is no equipment that needs to be physically attached to a person. The equipment of a typical polygraph may make a suspect tense or stressful. With the voice stress analyzer, the conversation can be recorded and tested at a later time. Another advantage is that the process is much quicker with the voice analysis. With the polygraph, questions must be appropriately worded to allow for yes and no answers. The voice analysis can analyze all words, including sounds like groans or sighs.
Voice stress analysis works by measuring tremors, or vibrations, in the human voice when being interviewed, interrogated, or conversing
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