GINSBURG, J,. delivered the opinion of the Court, in which ROBERTS, C. J., and SCALIA, KENNEDY, SOUTER, THOMAS, and ALITO, JJ., joined.
This case concerns the Sixth Amendment guarantee that “[i]n all criminal prosecutions, the accused shall enjoy the right to a speedy . . . trial.” Michael Brillon, defendant below, respondent here, was arrested in July 2001 on felony domestic assault and habitual offender charges. Nearly three years later, in June 2004, he was tried by jury, found guilty as charged, and sentenced to 12 to 20 years in prison. The Vermont Supreme Court vacated Brillon’s conviction and held that the charges against him must be dismissed because he had been denied his right to a speedy trial.
During the time between Brillon’s arrest and his trial, at least six different attorneys were appointed to represent him. Brillon “fired” the first, who served from July 2001 to February 2002. His third lawyer, who served from March 2002 until June 2002, was allowed to withdraw when he reported that Brillon had threatened his life. The Vermont Supreme Court charged against Brillon the delays associated with those periods, but charged against the State periods in which assigned counsel failed “to move the case forward.” 955 A.2d 1108, 1121, 1122 (2008).
We hold that the Vermont Supreme Court erred in ranking assigned counsel essentially as state actors in the criminal justice system. Assigned counsel, just as retained counsel, act on behalf of their clients, and delays sought by counsel are ordinarily attributable to the defendants they represent. For a total of some six months of the time that elapsed between Brillon’s arrest and his trial, Brillon lacked an attorney. The State may be charged with those months if the gaps resulted from the trial court’s failure to appoint replacement counsel with dispatch. Similarly, the State may bear responsibility if there is “a breakdown in the public defender system.” Id., at 1111. But, as the Vermont Supreme Court acknowledged, id., at 1126, the record does not establish any such institutional breakdown.
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The Vermont Supreme Court’s opinion is driven by the notion that delay caused by assigned counsel’s “inaction” or failure “to move [the] case forward” is chargeable to the State, not the defendant. Id., at 1111, 1122. In this case, that court concluded, “a significant portion of the delay in bringing defendant to trial must be attributed to the state, even though most of the delay was caused by the inability or unwillingness of assigned counsel to move the case forward.” Id., at 1121.
We disagree. An assigned counsel’s failure “to move the case forward” does not warrant attribution of delay to the State. Contrary to the Vermont Supreme Court’s analysis, assigned counsel generally are not state actors for purposes of a speedy-trial claim. While the Vermont Defender General’s office is indeed “part of the criminal justice system,” ibid., the individual counsel here acted only on behalf of Brillon, not the State. See Polk County, 454 U.S., at 320-322 (rejecting the view that public defenders act under color of state law because they are paid by the State). See also supra, at 8.
Most of the delay that the Vermont Supreme Court attributed to the State must therefore be attributed to Brillon as delays caused by his counsel. During those periods, Brillon was represented by Donaldson, Sleigh, and Moore, all of whom requested extensions and continuances. [Footnote omitted.] Their “inability or unwillingness . . . to move the case forward,” 955 A. 2d, at 1121, may not be attributed to the State simply because they are assigned counsel.
A contrary conclusion could encourage appointed counsel to delay proceedings by seeking unreasonable continuances, hoping thereby to obtain a dismissal of the indictment on speedy-trial grounds. Trial courts might well respond by viewing continuance requests made by appointed counsel with skepticism, concerned that even an apparently genuine need for more time is in reality a delay tactic. Yet the same considerations would not attend a privately retained counsel’s requests for time extensions. We see no justification for treating defendants’ speedy-trial claims differently based on whether their counsel is privately retained or publicly assigned.
In addition to making assigned counsel’s “failure . . . to move [the] case forward” the touchstone of its speedy-trial inquiry, the Vermont Supreme Court further erred by treating the period of each counsel’s representation discretely. The factors identified in Barker “have no talismanic qualities; courts must still engage in a difficult and sensitive balancing process.” 407 U.S., at 533. Yet the Vermont Supreme Court failed appropriately to take into account Brillon’s role during the first year of delay in “the chain of events that started all this.” . . . . .
Brillon sought to dismiss Ammons on the eve of trial. His strident, aggressive behavior with regard to Altieri, whom he threatened, further impeded prompt trial and likely made it more difficult for the Defender General’s office to find replacement counsel. Even after the trial court’s warning regarding delay, Brillon sought dismissal of yet another attorney, Donaldson. Just as a State’s “deliberate attempt to delay the trial in order to hamper the defense should be weighted heavily against the [State],” Barker, 407 U.S., at 531, so too should a defendant’s deliberate attempt to disrupt proceedings be weighted heavily against the defendant. Absent Brillon’s deliberate efforts to force the withdrawal of Ammons and Altieri, no speedy-trial issue would have arisen. The effect of these earlier events should have been factored into the court’s analysis of subsequent delay. 9
The general rule attributing to the defendant delay caused by assigned counsel is not absolute. Delay resulting from a systemic “breakdown in the public defender system,” 955 A. 2d, at 1111, could be charged to the State. Cf. Polk County, 454 U.S., at 324-325. But the Vermont Supreme Court made no determination, and nothing in the record suggests, that institutional problems caused any part of the delay in Brillon’s case.
In sum, delays caused by defense counsel are properly attributed to the defendant, even where counsel is assigned. “[A]ny inquiry into a speedy trial claim necessitates a functional analysis of the right in the particular context of the case,” Barker, 407 U.S., at 522, and the record in this case does not show that Brillon was denied his constitutional right to a speedy trial.
JUSTICE BREYER, with whom JUSTICE STEVENS joins, dissenting:
We granted certiorari in this case to decide whether delays caused “solely” by a public defender can be “charged against the State pursuant to the test in Barker v. Wingo, 407 U.S. 514 (1972).”  . . . The case, in my view, does not squarely present that question, for the Vermont Supreme Court, when it found Michael Brillon’s trial unconstitutionally delayed, did not count such delays against the State. The court’s opinion for the most part makes that fact clear; at worst some passages are ambiguous. Given these circumstances, I would dismiss the writ of certiorari as improvidently granted.