Cite as: 509 U. S. 389 (1993)
Opinion of the Court
sense there is a "heightened" standard for pleading guilty and for waiving the right to counsel, but it is not a heightened standard of competence.12
This two-part inquiry 13 is what we had in mind in Westbrook. When we distinguished between "competence to stand trial" and "competence to waive [the] constitutional right to the assistance of counsel," 384 U. S., at 150, we were using "competence to waive" as a shorthand for the "intelligent and competent waiver" requirement of Johnson v. Zerbst. This much is clear from the fact that we quoted that very language from Zerbst immediately after noting that the trial court had not determined whether the petitioner was competent to waive his right to counsel. See 384 U. S., at 150 (" 'This protecting duty imposes the serious and weighty responsibility upon the trial judge of determining whether there is an intelligent and competent waiver by the accused' ") (quoting Johnson v. Zerbst, 304 U. S., at 465). Thus, Westbrook stands only for the unremarkable proposi-12 The focus of a competency inquiry is the defendant's mental capacity; the question is whether he has the ability to understand the proceedings. See Drope v. Missouri, supra, at 171 (defendant is incompetent if he "lacks the capacity to understand the nature and object of the proceedings against him") (emphasis added). The purpose of the "knowing and voluntary" inquiry, by contrast, is to determine whether the defendant actually does understand the significance and consequences of a particular decision and whether the decision is uncoerced. See Faretta v. California, supra, at 835 (defendant waiving counsel must be "made aware of the dangers and disadvantages of self-representation, so that the record will establish that 'he knows what he is doing and his choice is made with eyes open' ") (quoting Adams v. United States ex rel. McCann, 317 U. S. 269, 279 (1942)); Boykin v. Alabama, 395 U. S., at 244 (defendant pleading guilty must have "a full understanding of what the plea connotes and of its consequence").
13 We do not mean to suggest, of course, that a court is required to make a competency determination in every case in which a defendant seeks to plead guilty or to waive his right to counsel. As in any criminal case, a competency determination is necessary only when a court has reason to doubt the defendant's competence. See Drope v. Missouri, supra, at 180- 181; Pate v. Robinson, 383 U. S. 375, 385 (1966).
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