Vol. 6, Issue 6 (2020)
Glimpse on narco analysis, polygraph and brain mapping in criminal investigation and trials
Author(s): Keval Ukey
Abstract: The basis of Indian criminal justice system is the investigation by the police. When an offence is brought to the notice of police, it is their responsibility to investigate into the matter to find out who committed the crime, to ascertain the facts and circumstances, to collect and present whole set of these to the court to find the accused guilty or not. But this seldom happens in present scenario. The reason behind this is criminals have become classy, sophisticated, hi-fi and are simply cutting-edge as they are adopting new and enhanced techniques for commission of crimes. They hardly leave any sort of evidences at the crime site or otherwise and on the contrary police and investigation agencies are stills tuck on the longstanding tools, techniques of investigation of crimes. Police often use third-degree torture to extract information. Consequently, custodial atrocities, custodial deaths are on an increase. Also, where criminals leave no evidence of their alleged crimes, they escape punishments in the absence of direct proof sufficient enough to establish the guilt. It is here that we can seek the help of scientific evidence for effective delivery of justice as it combines both science and the law. We use a number of scientific techniques like Nacro-analysis, polygraph, and Brain-mapping etc. The advantages of Narco Analysis, Polygraph and Brain-Mapping are that these techniques are helpful in saving the innocents from prosecution and eliminating the use of third degree method in criminal investigations. In addition, it has been used as a time saving techniques in trial of criminal cases by help of trained and skilled forensic experts.