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:
DOUGLAS v. BUDER, JUDGE
No. 72-6198.
Decided June 4, 1973
Per Curiam.
In November 1971, petitioner, a 50-year-old truck driver with no prior offenses, pleaded guilty to two counts of manslaughter and was given a suspended sentence and placed on probation for a period of four years by the respondent Missouri Circuit Court Judge. One of the conditions of probation was that “[a] 11 arrests for any reason must be reported without delay to [petitioner’s] probation and parole officer.” In January 1972, petitioner was involved in a seven-vehicle chain-reaction accident on an Arkansas highway. The driver of the first vehicle was issued a traffic citation for failure to yield the right of way, and petitioner, along with four other drivers involved in the accident, was issued a citation for driving too fast for existing conditions. At the next scheduled meeting with his probation officer, 11 days after the accident, petitioner mentioned the accident and the receipt of the traffic citation. On the same day, the probation officer reported this information to respondent who thereupon scheduled a hearing for the purpose of determining whether petitioner’s probation should be revoked. At the hearing, both the probation officer and the prosecutor took the position that petitioner had not violated any of the conditions of his probation and both recommended that probation be continued. Nevertheless, respondent, stating that petitioner’s failure to report the accident and the traffic citation “displayed poor attitude toward his probation” and was not in “strict compliance with the terms of the probation,” revoked probation and sentenced petitioner to concurrent terms of two years on each of the original two counts. Petitioner sought a writ of prohibition in the Missouri Supreme Court, but that court, in a A-3 decision, concluded that respondent had not abused his discretion and therefore denied relief.
The apparent premise upon which respondent proceeded in revoking petitioner’s probation was that petitioner had failed promptly to report an “arrest.” But the issuance of the traffic citation was not an “arrest” under either Missouri or Arkansas law. By statute, Missouri defines an “arrest” as “an actual restraint of the person of the defendant, or . . . submission to the custody of the officer, under authority of a warrant or otherwise.” Mo. Rev. Stat. § 544.180 (1953). Similarly, Arkansas defines an “arrest” as the “placing of the person of the defendant in restraint, or . . . submitting to the custody of the person making the arrest.” Ark. Stat. Ann. §43-412 (1947). The record before us discloses absolutely no evidence that petitioner was subjected to an "actual restraint” or taken into “custody” at the scene of the accident or elsewhere. Consequently, we conclude that the finding that petitioner had violated the conditions of his probation by failing to report “all arrests . . . without delay” was so totally devoid of evidentiary support as to be invalid under the Due Process Clause of the Fourteenth Amendment. Thompson v. Louisville, 362 U. S. 199 (1960); Garner v. Louisiana, 368 U. S. 157 (1961).
The State argues, however, that the revocation of petitioner’s probation should be viewed as a determination by respondent that, for purposes of Missouri law, a traffic citation is the equivalent of an arrest even though not accompanied by an actual restraint. But neither respondent nor the Missouri Supreme Court specifically made such a finding and no prior Missouri decisional law is cited to support the contention that a traffic citation has ever before been treated as the equivalent of an arrest. Moreover, even if it were clear that respondent had declared Missouri law to be that a traffic citation is the equivalent of an arrest, we would have to conclude that under the rationale of Bouie v. City of Columbia, 378 U. S. 347 (1964), the unforeseeable application of that interpretation in the case before us deprived petitioner of due process. We held in Bouie that “[w]hen . . . [an] unforeseeable state-court construction of a criminal statute is applied retroactively to subject a person to criminal liability for past conduct, the effect is to deprive him of due process of law in the sense of fair warning that his contemplated conduct constitutes a crime.” Id., at 354-355. And that same principle of due process is fully applicable in the context of the case before us.
The motion for leave to proceed in forma pauperis and the petition for a writ of certiorari are granted. The judgment is reversed and the cause is remanded to the Missouri Supreme Court for proceedings not inconsistent with this opinion.
Reversed and remanded.
The Chief Justice and Mr. Justice Rehnquist concur in the result.
Mr. Justice Blackmun took no part in the consideration or decision of this case.

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: 1