Prakash Nayi @ Sen vs The State of Goa
Background
On the morning of 14 May 2004, the appellant, who worked at a shop belonging to his grandfather's brother, struck the deceased with an iron locking plate without any motive, provocation or planning. He then walked to the bus stand, came back to the shop, left the weapon there, and went and sat at the bus stand again without trying to flee. Six months earlier he had been treated as an in-patient at a government hospital in Bhiwani, Haryana, for anxiety neurosis with depression and given medication of the kind used for schizophrenia. During trial, a government doctor examined him on court orders, certified chronic schizophrenia dating from his mid-teens, and initially found him unfit to stand trial. The trial court and the Bombay High Court at Goa nonetheless convicted him of murder, rejecting the insanity plea.
Decision Breakdown
The Supreme Court allowed the appeal and acquitted the appellant under Section 84 IPC. It explained that the test is "legal insanity" (inability at the time of the act to know its nature, or that it was wrong or against the law), not merely "medical insanity", but that the accused need prove this only on a preponderance of probabilities, after which the burden shifts to the prosecution; the court's approach must be non-adversarial, and the accused's conduct before, during and after the act is key. Here the courts below had wrongly brushed aside the government doctor's evidence (which withstood cross-examination), the uncle's evidence about prior treatment, and the appellant's strange post-incident behaviour, while being unduly influenced by the nature of the act. The fact that he later became fit to stand trial only after treatment was itself indicative of his earlier insanity. The Court also noted that Chapter XXV CrPC obliges courts to actively look after accused persons of unsound mind.
Lesson Learnt
Criminal law punishes only those who understood what they were doing; a person who, because of genuine mental illness, could not know the nature or wrongfulness of the act is a victim needing help, not an offender. The accused need only show this is probable, and the police and courts must actively investigate any history of mental illness rather than treat the plea as an adversarial contest.