CALCRIM No. 3428. Mental Impairment:
Defense to Specific Intent or Mental State
Judicial Council of California Criminal Jury Instructions
You have heard evidence that the defendant may have suffered from a
mental (disease[,]/ [or] defect[,]/ [or] disorder). You may consider this
evidence only for the limited purpose of deciding whether, at the time of
the charged crime, the defendant acted [or failed to act] with the intent
or mental state required for that crime.
The People have the burden of proving beyond a reasonable doubt that
the defendant acted [or failed to act] with the required intent or mental
state,