Ind. Code § 35-41-4-1 – Standard of proof; insanity defense

(a) A person may be convicted of an offense only if his guilt is proved beyond a reasonable doubt.
(b) Notwithstanding subsection (a), the burden of proof is on the defendant to establish the defense of insanity ( IC 35-41-3-6 ) by a preponderance of the evidence.
As added by Acts 1976, P.L.148, SEC.1. Amended by Acts 1977, P.L.340, SEC.16; Acts 1978, P.L.145, SEC.9.