Santhosh, The Central Law College, Salem, Tamil Nadu ABSTRACT Narcoanalysis, together with allied scientific interrogation techniques such as the polygraph (lie-detector) test and the Brain Electrical Activation Profile (BEAP), has been employed by Indian investigating agencies as a supposed aid to uncovering the truth in criminal cases. While proponents present these methods as valuable investigative tools capable of cutting through an uncooperative suspect's silence, their involuntary use...