Rule 12.1 Mental Competency; Definition

Comment “[T]he criminal trial of an incompetent defendant violates due process.” Cooper v. Oklahoma, 517 U.S. 348, 354, 116 S. Ct. 1373, 1376, 134 L. Ed. 2d 498 (1996) (citation omitted). See also Caylor v. State, 437 So. 2d 444, 445 (Miss. 1983) (citing Emanuel v. State, 412 So. 2d 1187, 1188 (Miss. 1982)). The Mississippi Supreme Court has outlined the requisite abilities for a defendant to be deemed mentally competent. See Jay v. State, 25 So. 3d 257, 261 (Miss. 2009); Martin v. State, 871 So. 2d 693, 697-98 (Miss. 2004). In that analysis, there is a presumption of mental competency. See Evans v. State, 725 So. 2d 613, 660 (Miss. 1997). Rule 12.1 addresses only the defendant’s competency to stand trial, and not the defendant’s possible insanity at the time of the alleged offense. See Parker v. State, 30 So. 3d 1222, 1230-31 (Miss. 2010); Medina v. California, 505 U.S. 437, 448, 112 S. Ct. 2572, 2579, 120 L. Ed. 2d 353 (1992) (“there are significant differences between a claim of incompetence and a plea of not guilty by reason of insanity.”); Caylor, 437 So. 2d at 447 n.1. If reasonable grounds exist to doubt the defendant’s competence to stand trial, the procedures in Rules 12.2 through 12.6 should be followed.