end trial proceedings on one's own and the ability to conduct trial proceedings on one's own. The Court ultimately concluded that, in light of these rules, a state may require an otherwise competent criminal defendant to proceed to trial with the assistance of counsel. The standard for competency to stand trial presumes that the defendant will have a lawyer to assist him at that trial. Implicit therefore in the Dusky rule is the idea that the standard for competency to stand trial must be lower than the standard for competency to represent oneself. The right to represent oneself at trial is qualified by the trial court's interest in preserving courtroom decorum and promoting the orderly presentation of evidence, questioning of witnesses, and advancement of legal argument. For the Court, it was "common sense" that a defendant's mental illness might impair his ability to accomplish these tasks—tasks that any lawyer must if he is to press his client's case effectively. "A right of self-representation at trial will not affirm the dignity of a defendant who lacks the mental capacity to conduct his defense without the assistance of counsel." Moreover, the Court separated the standards for competency to stand trial and for competency to represent oneself out of a concern for the fairness of the trial process. Criminal trials "must not only be fair, they must appear fair to all who observe them." "No trial can be fair that leaves the defense to a man who is insane, unaided by counsel, and who by reason of his mental condition stands hopeless and alone before the court." For these reasons, the Constitution allows trial courts to "take realistic account of the particular defendant's mental capacities by asking whether a defendant who seeks to conduct his own defense at trial is mentally competent to do so." Dissenting opinion Characterizing the right of self-representation as "a specific right long understood as essential to a fair trial," Justice Scalia disputed the Court's conclusion that "a State may... strip a mentally ill defendant of the right to represent himself when that would be fairer." Because counsel's role under the Sixth Amendment is merely one of "assistance," or because the "right of self-representation could also be seen as a part of the traditional meaning of the Due Process Clause," Faretta had held that a state may not force a lawyer upon a defendant who does not want one.