THE PENAL CODE, 1860 (ACT NO. XLV OF 1860).
CHAPTER IV- GENERAL EXCEPTIONS
84. Nothing is an offence which is done by a person who, at the time of doing it, by reason of unsoundness of mind, is incapable of knowing the nature of the act, or that he is doing what is either wrong or contrary to law.
Incapacity - national proceedings
Insanity - national proceedings
EDIT.