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Text: We reject respondent Greenwood's alternative argument for affirmance: that his expectation of privacy in his garbage should be deemed reasonable as a matter of federal constitutional law because the warrantless search and seizure of his garbage was impermissible as a matter of California law. He urges that the state-law right of Californians to privacy in their garbage, announced by the California Supreme Court in Krivda, supra, survived the subsequent state constitutional amendment eliminating the suppression remedy as a means of enforcing that right. See In re Lance W., 37 Cal. 3d, at 886-887, 694 P.2d, at 752-753. Hence, he argues that the Fourth Amendment should itself vindicate that right.

Individual States may surely construe their own constitutions as imposing more stringent constraints on police conduct than does the Federal Constitution. We have never intimated, however, that whether or not a search is reasonable within the meaning of the Fourth Amendment depends on the law of the particular State in which the search occurs. We have emphasized instead that the Fourth Amendment analysis must turn on such factors as "our societal understanding that certain areas deserve the most scrupulous protection from government invasion." Oliver v. United States, 466 U. S., at 178 (emphasis added). See also Rakas v. Illinois, 439 U.S. 128, 143-144, n. 12 (1978). We have already concluded that society as a whole possesses no such understanding with regard to garbage left for collection at the side of a public street. Respondent's argument is no less than a suggestion that concepts of privacy under the laws of each State are to determine the reach of the Fourth Amendment. We do not accept this submission.