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:
LEONARD v. UNITED STATES.
No. 1017, Misc.
Decided June 22, 1964.
John G. Clancy for petitioner.
Solicitor General Cox for the United States.
Per Curiam.
Petitioner was convicted in separate trials and by different juries of forging and uttering endorsements on government checks, 18 U. S. C. § 495, and of transportation of a forged instrument in interstate commerce, 18 U. S. C. § 2314. The two cases were tried in succession. The jury in the case tried first — forging and uttering endorsements — announced its guilty verdict in open court in the presence of the jury panel from which the jurors who were to try the second case — transportation of a forged instrument — were selected. Petitioner immediately objected to selecting a jury for the second case from among members of the panel who had heard the guilty verdict in the first case. The objection was overruled, and the actual jury which found petitioner guilty in the second case contained five jurors who had heard the verdict in the first case. The conviction in the second case was affirmed on appeal, 324 P. 2d 914, and petitioner now seeks a writ of certiorari.
The Solicitor General, in his brief filed in this Court, states that:
“The procedure followed by the district court in selecting the jury was, in our view, plainly erroneous. Prospective jurors who have sat in the courtroom and heard a verdict returned against a man charged with crime in a similar case immediately prior to the trial of another indictment against him should be automatically disqualified from serving at the second trial, if the objection is raised at the outset.”
We agree that under the circumstances of this case the trial court erred in denying petitioner’s objection. Accordingly the motion for leave to proceed in forma pau-peris and the petition for a writ of certiorari are granted, the judgment of conviction is reversed, and the cause is remanded for proceedings in conformity with this opinion.
It is so ordered.

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: 2