This Instruction should be given when a defense of not guilty by reason of mental illness has been raised. The Court of Criminal Appeals held in Ullery v. State, 1999 OK CR 36, ¶ 28, 988 P.2d 332, 346, that a jury instruction on the consequences of a verdict of not guilty by reason of insanity was not required. However, in an unpublished decision, Fears v. State, No. F-2004-1279 (July 7, 2006), the Court of Criminal Appeals has suggested that trial courts should use an instruction explaining the consequences of a verdict of not guilty by reason of insanity. There is a risk that jurors might confuse a verdict of not guilty by reason of mental illness with other not guilty verdicts and think that the defendant would go free if they returned a verdict of not guilty by reason of mental illness. See Lyles v. United States, 254 F.2d 725, 728 (D.C. Cir. 1957), overruled in part in Brawner v. United States, 471 F.2d 969 (D.C. Cir. 1972). This Instruction ought to avoid both juror confusion and also unnecessary speculation by jurors during their deliberations.