Law enforcements round the world have always been inclined to the use of Lie De tectors. Lie Detector or the Polygraph test is one of the results of technological -
advancements. Te Indian Law although doesn’t allows the application of the Lie Detectors in the courts to be used as an evidence. Tis paper will give you a background
check of lie detectors and despite of the fact that it isn’t allowed, how effective has this
been proved in cases. If we look at our ancient sciences also, the Ayurveda the technique to identify if a prisoner is at fault or not is the change in behavior, body language.
We now call it in the modern language as psychology of an individual. Tis will also
give a comparison of the admissibility rules of the same in different countries and how
is it useful or not in their individual scenarios. Let us look at a brief history of how it
was developed, the frst application in a case and in the coming years do we see any
changes in our Indian system of law for its application.