What follows is an opinion from the Supreme Court of the United States. Your task is to determine the bases on which the Supreme Court rested its decision with regard to the legal provision that the Court considered in the case. Consider "judicial review (national level)" if the majority determined the constitutionality of some action taken by some unit or official of the federal government, including an interstate compact. Consider "judicial review (state level)" if the majority determined the constitutionality of some action taken by some unit or official of a state or local government. Consider "statutory construction" for cases where the majority interpret a federal statute, treaty, or court rule; if the Court interprets a federal statute governing the powers or jurisdiction of a federal court; if the Court construes a state law as incompatible with a federal law; or if an administrative official interprets a federal statute. Do not consider "statutory construction" where an administrative agency or official acts "pursuant to" a statute, unless the Court interprets the statute to determine if administrative action is proper. Consider "interpretation of administrative regulation or rule, or executive order" if the majority treats federal administrative action in arriving at its decision.Consider "diversity jurisdiction" if the majority said in approximately so many words that under its diversity jurisdiction it is interpreting state law. Consider "federal common law" if the majority indicate that it used a judge-made "doctrine" or "rule; if the Court without more merely specifies the disposition the Court has made of the case and cites one or more of its own previously decided cases unless the citation is qualified by the word "see."; if the case concerns admiralty or maritime law, or some other aspect of the law of nations other than a treaty; if the case concerns the retroactive application of a constitutional provision or a previous decision of the Court; if the case concerns an exclusionary rule, the harmless error rule (though not the statute), the abstention doctrine, comity, res judicata, or collateral estoppel; or if the case concerns a "rule" or "doctrine" that is not specified as related to or connected with a constitutional or statutory provision. Consider "Supreme Court supervision of lower federal or state courts or original jurisdiction" otherwise (i.e., the residual code); for issues pertaining to non-statutorily based Judicial Power topics; for cases arising under the Court's original jurisdiction; in cases in which the Court denied or dismissed the petition for review or where the decision of a lower court is affirmed by a tie vote; or in workers' compensation litigation involving statutory interpretation and, in addition, a discussion of jury determination and/or the sufficiency of the evidence.

Opinion:
ROBERTS v. RUSSELL.
No. 920,
Misc.
Decided June 10, 1968.
George F. McCanless, Attorney General of Tennessee, and Paul E. Jennings, Assistant Attorney General, for respondent.
Per Curiam.
In Bruton v. United States, 391 U. S. 123, decided May 20, 1968, we overruled Delli Paoli v. United States, 352 U. S. 232, and held that, despite instructions to the jury to disregard the implicating statements in determining the codefendant’s guilt or innocence, admission at a joint trial of a defendant’s extrajudicial confession implicating a codefendant violated the codefendant’s right of cross-examination secured by the Confrontation Clause of the Sixth Amendment. This case presents the question whether Bruton is to be applied retroactively. We hold that it is.
The facts parallel the facts in Bruton. The petitioner was convicted by a jury of armed robbery at a joint trial with one Rappe in Davidson County, Tennessee. A police officer testified that Rappe orally confessed to him that petitioner and Rappe committed the crime. The trial judge instructed the jury that Rappe’s confession was admissible against her but that her statements implicating petitioner were not to be considered in determining petitioner's guilt or innocence. The Tennessee Supreme Court affirmed petitioner’s conviction. Petitioner filed a proceeding in federal habeas corpus in the United States District Court for the Middle District of Tennessee. That court relied on Delli Paoli and denied relief. The Court of Appeals for the Sixth Circuit affirmed.
Although Bruton involved a federal prosecution and this is a state prosecution, the right of cross-examination secured by the Confrontation Clause of the Sixth Amendment is made applicable to the States by the Fourteenth Amendment. Pointer v. Texas, 380 U. S. 400; Douglas v. Alabama, 380 U. S. 416.
“We have . . . retroactively applied rules of criminal procedure fashioned to correct serious flaws in the fact-finding process at trial.” Stovall v. Denno, 388 U. S. 293, 298. See Jackson v. Denno, 378 U. S. 368; Gideon v. Wainwright, 372 U. S. 335; Reck v. Pate, 367 U. S. 433; Linkletter v. Walker, 381 U. S. 618, 639, n. 20; Johnson v. New Jersey, 384 U. S. 719, 727-728; cf. Brookhart v. Janis, 384 U. S. 1. Despite the cautionary instruction, the admission of a defendant's confession which implicates a codefendant results in such a “serious flaw.” The retroactivity of the holding in Bruton is therefore required; the error “went to the basis of fair hearing and trial because the procedural apparatus never assured the [petitioner] a fair determination” of his guilt or innocence. Linkletter v. Walker, supra, at 639, n. 20. As we said in Bruton:
“[T]here are some contexts in which the risk that the jury will not, or cannot, follow instructions is so great, and the consequences of failure so vital to the defendant, that the practical and human limitations of the jury system cannot be ignored. . . . Such a context is presented here, where the powerfully incriminating extrajudicial statements of a code-fendant . . . are deliberately spread before the jury in a joint trial.” 391 U. S., at 135-136.
Due regard for countervailing considerations — reliance on the old standard of Delli Paoli and the impact of retroactivity upon the administration of justice, Stovall v. Denno, supra, at 298 — does not counsel against retroactivity of Bruton. The element of reliance is not persuasive, for Delli Paoli has been under attack from its inception and many courts have in fact rejected it. See Bruton v. United States, supra, at 128-135 and nn. 4, 8, 10. And even if the impact of retroactivity may be significant, the constitutional error presents a serious risk that the issue of guilt or innocence may not have been reliably determined.
The motion for leave to proceed in forma pauperis and the petition for writ of certiorari are granted. The judgment of the Court of Appeals is vacated and the case is remanded to the District Court for further consideration in light of Bruton v. United States, supra.
It is so ordered.
Mr. Justice Black concurs in the Court's holding as to retroactivity for the reasons given in his dissent in Linkletter v. Walker, 381 U. S. 618, 640, and not for the reasons given in the Court’s opinion today.
Mr. Justice Harlan and Mr. Justice White dissent for the reasons stated in Mr. Justice White’s dissenting opinion in Bruton v. United States, 391 U. S. 123, 138 (1968).

Question: What is the basis of the Supreme Court's decision?

Choices:
judicial review (national level)
judicial review (state level)
Supreme Court supervision of lower federal or state courts or original jurisdiction
statutory construction
interpretation of administrative regulation or rule, or executive order
diversity jurisdiction
federal common law

Answer: 6