International Journal of Law

Authors
Gowsia Farooq Khan

Abstract
Crime in some form or the other has existed since the beginning of human race. With the advancement in science and technology the concept of crime as well as the methods adopted by criminals in its commission have undergone a phenomenal change. With the changing scenario and the life style of human being every individual wants himself to domicile in place which will be having all the ambiences and luxuries of life ranging from his zone of comfort ability to a huge economy covering all aspects including his culture, way of living and lifestyle. With this desire of a strong well-being of an individual he invites huge competition of dominating others and developing newer technologies of doing same. As our society has grown more complex, it has become more dependent on the rules of law to regulate the knowledge and technology of science and the enforcement of such laws. Each year, as government finds it increasingly necessary to regulate those activities which intimately influence our daily life, science merges more closely with civil and criminal laws. The criminal justice system is no more different from it and it has also been effected by the changing scenario of newer technologies. Deception detection tests is one of those new technologies which are employed by the criminal justice system to know about the truths behind various crimes committed. This includes narco analysis, lie detection. Brain mapping and polygraph tests. The present paper is an endeavor to deal with various aspects of narco analysis test, various chemicals used in this particular test to extract truth from the suspect, effect of those chemicals on the human body. The paper will also throw light upon admissibility of the evidence obtained with the help of narco analysis test, its constitutional validity, the evidentiary value of such piece of evidence and judicial response.