<P> The defense is based on evaluations by forensic mental health professionals with the appropriate test according to the jurisdiction . Their testimony guides the jury , but they are not allowed to testify to the accused 's criminal responsibility , as this is a matter for the jury to decide . Similarly , mental health practitioners are restrained from making a judgment on the issue of whether the defendant is or is not insane or what is known as the `` ultimate issue '' . </P>
<P> The defense is based on evaluations by forensic mental health professionals with the appropriate test according to the jurisdiction . Their testimony guides the jury , but they are not allowed to testify to the accused 's criminal responsibility , as this is a matter for the jury to decide . Similarly , mental health practitioners are restrained from making a judgment on the issue of whether the defendant is or is not insane or what is known as the `` ultimate issue '' . </P>
who must determine whether a defendant was insane at the time of a crime
who must determine whether a defendant was insane at the time of a crime
forensic mental health professionals jury
forensic mental health professionals jury