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user: Read the following U.S. Supreme Court case excerpt and classify it into the correct legal issue area. Excerpt: 540 U.S. 544 ILLINOISv.FISHER No. 03-374. Supreme Court of United States. Decided February 23, 2004. After Chicago police conducted four tests on a white powdery substance seized during respondent's arrest, he was charged with possession of cocaine and filed a discovery motion for all physical evidence the State intended to use at trial. He then fled while released on bail, and the court issued an arrest warrant. When that warrant was finally executed 10 years later, the State reinstated the possession charge, informing respondent that the police, acting under established procedures, had destroyed the substance seized during his arrest. Respondent formally requested production of the substance and moved to dismiss the charge based on the destruction of evidence. The trial court denied his motion, and he was convicted. The Appellate Court reversed, holding that the Due Process Clause required dismissal of the charge and finding that such a result was not foreclosed by Arizona v. Youngblood, 488 U.S. 51, 58, in which this Court held that "unless a criminal defendant can show bad faith on the part of police, failure to preserve potentially useful evidence does not constitute a denial of due process of law." Held: Respondent has failed to establish a due process violation. While the prosecution's good or bad faith is irrelevant when a State suppresses or fails to disclose material exculpatory evidence, Youngblood recognizes that bad faith is relevant when dealing with the State's failure to preserve "potentially useful evidence." The substance seized here was plainly the latter sort of evidence. At most, respondent could hope that a fifth test of the substance would have exonerated him. He did not allege, nor did the Appellate Court find, that the police acted in bad faith in destroying the substance. To the contrary, police testing inculpated respondent, and the police acted in good faith and in accord with their normal practice. This Court has never held or suggested that the existence of a pending discovery request eliminates the necessity of a bad-faith showing. Nor does the Court agree that Youngblood does not apply when the contested evidence is a defendant's only hope for exoneration and is essential to the case's outcome. The Youngblood bad-faith requirement's applicability depends not on the contested evidence's centrality to the case, but on the distinction between "material exculpatory" evidence and "potentially useful" evidence. 488 U.S., at 57-58. Certiorari granted; reversed and remanded. ON PETITION FOR WRIT OF CERTIORARI TO THE APPELLATE COURT OF ILLINOIS, FIRST DISTRICT. PER CURIAM. 1 The Appellate Court of Illinois held here that the Fourteenth Amendment's Due Process Clause required the dismissal of criminal charges because the police, acting in good faith and according to normal police procedures, destroyed evidence that respondent had requested more than 10 years earlier in a discovery motion. Petitioner, the State of Illinois, contends that such a result is foreclosed by our decision in Arizona v. Youngblood, 488 U.S. 51 (1988). There we held that "unless a criminal defendant can show bad faith on the part of the police, failure to preserve potentially useful evidence does not constitute a denial of due process of law." Id., at 58. We agree with petitioner, grant the petition for certiorari and respondent's motion for leave to proceed in forma pauperis, and reverse the judgment of the Appellate Court. 2 In September 1988, Chicago police arrested respondent in the course of a traffic stop during which police observed him furtively attempting to conceal a plastic bag containing a white powdery substance. Four tests conducted by the Chicago Police Crime Lab and the Illinois State Police Crime Lab confirmed that the bag seized from respondent contained cocaine. 3 Respondent was charged with possession of cocaine in the Circuit Court of Cook County in October 1988. He filed a motion for discovery eight days later requesting all physical evidence the State intended to use at trial. The State responded that all evidence would be made available at a reasonable time and date upon request. Respondent was released on bond pending trial. In July 1989, however, he failed to appear in court, and the court issued an arrest warrant to secure his presence. Respondent remained a fugitive for over 10 years, apparently settling in Tennessee. The outstanding arrest warrant was finally executed in November 1999, after respondent was detained on an unrelated matter. The State then reinstated the 1988 cocaine-possession charge. 4 Before trial, the State informed respondent that in September 1999, the police, acting in accord with established procedures, had destroyed the substance seized from him during his arrest. Respondent thereupon formally requested production of the substance and filed a motion to dismiss the cocaine-possession charge based on the State's destruction of evidence. The trial court denied the motion, and the case proceeded to a jury trial. The State introduced evidence tending to prove the facts recounted above. Respondent's case in chief consisted solely of his own testimony, in which he denied that he ever possessed cocaine and insinuated that the police had "framed" him for the crime. The jury returned a verdict of guilty, and respondent was sentenced to one year of imprisonment. 5 The Appellate Court reversed the conviction, holding that the Due Process Clause required dismissal of the charge. Relying on the Illinois Supreme Court's decision in Illinois v. Newberry, 166 Ill. 2d 310, 652 N. E. 2d 288 (1995), the Appellate Court reasoned: 6 "`Where evidence is requested by the defense in a discovery motion, the State is on notice that the evidence must be preserved, and the defense is not required to make an independent showing that the evidence has exculpatory value in order to establish a due process violation. If the State proceeds to destroy the evidence, appropriate sanctions may be imposed even if the destruction is inadvertent. No showing of bad faith is necessary.'" App. to Pet. for Cert. 12 (quoting Newberry, supra, at 317, 652 N. E. 2d, at 292) (citation omitted in original). 7 The Appellate Court observed that Newberry distinguished our decision in Youngblood on the ground that the police in Youngblood did not destroy evidence subsequent to a discovery motion by the defendant. App. to Pet. for Cert. 13. While acknowledging that "there is nothing in the record to indicate that the alleged cocaine was destroyed in bad faith," id., at 15, the court further determined that Newberry dictated dismissal because, unlike in Youngblood, the destroyed evidence provided respondent's "only hope for exoneration," App. to Pet. for Cert. 15, and was "`essential to and determinative of the outcome of the case,'" App. to Pet. for Cert. 16 (quoting Newberry, supra, at 315, 652 N. E. 2d, at 291). Consequently, the court concluded that respondent "was denied due process when he was tried subsequent to the destruction of the alleged cocaine." App. to Pet. for Cert. 16. The Illinois Supreme Court denied leave to appeal.* 8 We have held that when the State suppresses or fails to disclose material exculpatory evidence, the good or bad faith of the prosecution is irrelevant: a due process violation occurs whenever such evidence is withheld. See Brady v. Maryland, 373 U. S. 83 (1963); United States v. Agurs, 427 U.S. 97 (1976). In Youngblood, by contrast, we recognized that the Due Process Clause "requires a different result when we deal with the failure of the State to preserve evidentiary material of which no more can be said than that it could have been subjected to tests, the results of which might have exonerated the defendant." 488 U.S., at 57. We concluded that the failure to preserve this "potentially useful evidence" does not violate due process "unless a criminal defendant can show bad faith on the part of the police." Id., at 58 (emphasis added). 9 The substance seized from respondent was plainly the sort of "potentially useful evidence" referred to in Youngblood, not the material exculpatory evidence addressed in Brady and Agurs. At most, respondent could hope that, had the evidence been preserved, a fifth test conducted on the substance would have exonerated him. See Youngblood, 488 U. S., at 57. But respondent did not allege, nor did the Appellate Court find, that the Chicago police acted in bad faith when they destroyed the substance. Quite the contrary, police testing indicated that the chemical makeup of the substance inculpated, not exculpated, respondent, see id., at 57, n., and it is undisputed that police acted in "good faith and in accord with their normal practice," id., at 56 (internal quotation marks omitted) (quoting California v. Trombetta, 467 U. S. 479, 488 (1984), in turn quoting Killian v. United States, 368 U. S. 231, 242 (1961)). Under Youngblood, then, respondent has failed to establish a due process violation. 10 We have never held or suggested that the existence of a pending discovery request eliminates the necessity of showing bad faith on the part of police. Indeed, the result reached in this case demonstrates why such a per se rule would negate the very reason we adopted the bad-faith requirement in the first place: to "limi[t] the extent of the police's obligation to preserve evidence to reasonable grounds and confin[e] it to that class of cases where the interests of justice most clearly require it." 488 U. S., at 58. 11 We also disagree that Youngblood does not apply whenever the contested evidence provides a defendant's "only hope for exoneration" and is "`essential to and determinative of the outcome of the case.'" App. to Pet. for Cert. 15-16 (citing Newberry, 166 Ill. 2d, at 315, 652 N. E. 2d, at 291). In Youngblood, the Arizona Court of Appeals said that the destroyed evidence "could [have] eliminate[d] the defendant as the perpetrator." 488 U. S., at 54 (quotation marks and citations omitted). Similarly here, an additional test might have provided the defendant with an opportunity to show that the police tests were mistaken. It is thus difficult to distinguish the two cases on this basis. But in any event, the applicability of the bad-faith requirement in Youngblood depended not on the centrality of the contested evidence to the prosecution's case or the defendant's defense, but on the distinction between "material exculpatory" evidence and "potentially useful" evidence. 488 U. S., at 57-58. As we have held, supra, at 548, the substance destroyed here was, at best, "potentially useful" evidence, and therefore Youngblood's bad-faith requirement applies. 12 The judgment of the Appellate Court of Illinois is reversed, and the case is remanded for further proceedings not inconsistent with this opinion. 13 It is so ordered. Notes: * Respondent suggests that we lack jurisdiction because the Appellate Court relied onNewberry, which in turn relied on an adequate and independent state ground. See, e. g., Michigan v. Long, 463 U.S. 1032, 1040-1042 (1983). Respondent is correct that Newberry relied on both the Due Process Clause, and in the alternative, Illinois Supreme Court Rule 415(g)(i) (1990). 166 Ill. 2d, at 314-317, 652 N. E. 2d, at 290-292. The Appellate Court, however, relied only on the portion of Newberry that addressed due process, and the Appellate Court based its decision solely on the Due Process Clause. Accordingly, we have jurisdiction to review that decision. See, e. g., Long, supra, at 1038, n. 4 ("We may review a state case decided on a federal ground even if it is clear that there was an available state ground for decision on which the state court could properly have relied" (citing Beecher v. Alabama, 389 U. S. 35, 37, n. 3 (1967) (per curiam))). 14 JUSTICE STEVENS, concurring in the judgment. 15 While I did not join the three Justices who dissented in Arizona v. Youngblood, 488 U. S. 51 (1988), I also declined to join the majority opinion because I was convinced then, and remain convinced today, that "there may well be cases in which the defendant is unable to prove that the State acted in bad faith but in which the loss or destruction of evidence is nonetheless so critical to the defense as to make a criminal trial fundamentally unfair." Id., at 61 (STEVENS, J., concurring in judgment).* This, like Youngblood, is not such a case. 16 Neither is it a case that merited review in this Court, however. The judgment of the Illinois Appellate Court has limited precedential value, and may well be reinstated on remand because the result is supported by the state-law holding in People v. Newberry, 166 Ill. 2d 310, 652 N. E. 2d 288 (1995). See ante, n. In my judgment the State's petition for a writ of certiorari should have been denied. Notes: * Youngblood's focus on the subjective motivation of the police represents a break with our usual understanding that the presence or absence of constitutional error in suppression of evidence cases depends on the character of the evidence, not the character of the person who withholds it. United States v. Agurs, 427 U. S. 97, 110 (1976). Since Youngblood was decided, a number of state courts have held as a matter of state constitutional law that the loss or destruction of evidence critical to the defense does violate due process, even in the absence of bad faith. As the Connecticut Supreme Court has explained, "[f]airness dictates that when a person's liberty is at stake, the sole fact of whether the police or another state official acted in good or bad faith in failing to preserve evidence cannot be determinative of whether the criminal defendant received due process of law." State v. Morales, 232 Conn. 707, 723, 657 A. 2d 585, 593 (1995) (footnote omitted). See also State v. Ferguson, 2 S. W. 3d 912, 916-917 (Tenn. 1999); State v. Osakalumi, 194 W. Va. 758, 765-767, 461 S. E. 2d 504, 511-512 (1995); State v. Delisle, 162 Vt. 293, 309, 648 A. 2d 632, 642 (1994); Ex parte Gingo, 605 So. 2d 1237, 1241 (Ala. 1992); Commonwealth v. Henderson, 411 Mass. 309, 310-311, 582 N. E. 2d 496, 497 (1991); State v. Matafeo, 71 Haw. 183, 186-187, 787 P. 2d 671, 673 (1990); Hammond v. State, 569 A. 2d 81, 87 (Del. 1989); Thorne v. Department of Public Safety, 774 P. 2d 1326, 1330, n. 9 (Alaska 1989).

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