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:
OHIO v. GALLAGHER
No. 74-492.
Argued December 2, 1975
Decided April 5, 1976
Herbert M. Jacobson argued the cause for petitioner. With him on the brief was Lee C. Falke.
Jack T. Schwarz, by appointment of the Court, 421 U. S. 985, argued the cause and filed a brief for respondent.
Evelle J. Younger, Attorney General, Jack R. Winkler, Chief Assistant Attorney General, S. Clark Moore, Assistant Attorney General, Frederick R. Millar, Jr., and Theodora Berger, Deputy Attorneys General, filed a brief for the State of California as amicus curiae urging reversal.
Per Curiam.
We granted certiorari to determine whether the' admission in evidence of statements made by an accused in response to in-custody questioning by his parole officer violates the rule of Miranda v. Arizona, 384 U. S. 436 (1966).
On June 21, 1972, the respondent, Terry L. Gallagher, was arrested and later charged with the armed robbery of a food store. On the morning following his arrest, two detectives advised respondent of his rights under Miranda and then questioned him.
Four days later, respondent’s parole officer, William Sykes, went to the jail to talk to him about the food store robbery as a possible violation of parole. Respondent refused to discuss it, but on a return visit a week later, Gallagher gave Sykes a detailed account of his participation in the crime. It is undisputed that, at no time, did the parole officer advise Gallagher that he had a right to remain silent or that any statements he made would be used as evidence against him. At trial, the parole officer was called as a prosecution witness and testified, over defense objection, to the incriminating statements made to him by Gallagher.
Respondent was convicted of armed robbery in the Ohio Court of Common Pleas. The Ohio Court of Appeals affirmed. 36 Ohio App. 2d 29, 301 N. E. 2d 888 (1973).
The Supreme Court of Ohio granted respondent’s motion for leave to appeal and reversed the judgment of conviction. 38 Ohio St. 2d 291, 313 N. E. 2d 396 (1974). In its opinion, the state court defined the question presented by respondent’s appeal as “whether testimony, concerning certain statements made by [respondent] to his parole officer about his involvement in a crime, was received at trial in violation of [respondent’s] privilege against self-incrimination, as guaranteed by Section 10, Article I of the Ohio Constitution, and the Fifth Amendment to the United States Constitution.” Id., at 294, 313 N. E. 2d, at 398-399. The Ohio Supreme Court held that testimony relating the statements of an accused in response to questions by his parole officer is inadmissible at trial if, prior to the questioning, the parole officer failed to advise the accused of his right to remain silent and his right to be provided with counsel prior to questioning, and to warn him that any statement might be used as evidence against him. Id., at 297, 313 N. E. 2d, at 400.
From the briefs and oral argument, we are unable to determine whether the Ohio Supreme Court rested its decision upon the Fifth and Fourteenth Amendments to the Constitution of the United States, or Art. I, § 10, of the Ohio Constitution, or both. In its full opinion, the Ohio court cited with approval an excerpt from the opinion of the Court of Appeals for the Fifth Circuit in United States v. Deaton, 468 F. 2d 541 (1972), a case which, in the view of the state court, presented the precise question then before it. We are unsure whether the Ohio court made reference to Deaton merely to lend support to its view that a parolee is under heavy-pressure to cooperate with his parole officer or whether the court intended to demonstrate its reliance on a federal constitutional ground. Indeed, we cannot be certain that the Ohio court did not construe its constitutional provision to be identical to that contained in the Fifth Amendment and thus render judgment simultaneously under both state and federal law.
We also note that, except for per curiam opinions, it is the settled rule in Ohio that its Supreme Court speaks as a court only through the syllabi of its cases. See Cassidy v. Glossip, 12 Ohio St. 2d 17, 24, 231 N. E. 2d 64 (1967); see also Beck v. Ohio, 379 U. S. 89, 93 (1964). The italicized headnote which appears in the instant syllabus can be read as a holding based only on points of criminal law and the law of evidence; it contains nothing to indicate that a point of federal constitutional law is decided. Because we decline to speculate from the choice of words used in the syllabus and the authorities cited by the author of the opinion as to which constitutional provision formed the basis for the judgment of the state court, we vacate the judgment of the Supreme Court of Ohio and remand the cause to permit that court to explicate whether or not its judgment relies on federal law. California v. Krivda, 409 U. S. 33 (1972); Mental Hygiene Dept. v. Kirchner, 380 U. S. 194 (1965); Minnesota v. National Tea Co., 309 U. S. 551 (1940). We intimate no view on the merits of the Fifth and Fourteenth Amendment issue presented.
Vacated and remanded.
Mr. Justice Stevens took no part in the consideration or decision of this case.
420 U. S. 1003 (1975).
Statements elicited from the respondent during this police interrogation were later suppressed by the trial court on the ground that they were induced by promises of leniency and, as such, were involuntary.

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