and Himmel met again on the following day, once more in Murray’s presence and hearing. At this meeting they discussed the extent to which they could trust Michael Cassotta, a customs agent who had been bribed to pass the shipment through customs without questioning its contents and who had already done so with the first shipment. Burtman assured Himmel that Cassotta could be “trusted,” and that he would not talk in the face of an investigation. Cassotta’s reliability was also considered at yet a third meeting on May 17th, similarly attended by Murray, between Burtman and co-defendants Charles Tourine and Pasquale Giordano at a midtown Manhattan restaurant. Tourine assured Burtman that Cassotta had been given two payments, one of $1,000 and another of $3,000, and that Burtman could rest assured that Cassotta would not talk.
A one-count indictment was subsequently filed in the Southern District of New York against Burtman, Himmel, Tourine and Giordano, charging them under 18 U.S.C. § 371 with conspiracy to defraud the United States and the Bureau of Customs by bribing customs agents and employees and otherwise avoiding customs inspections of items imported into the United States. The jury found Burtman and Himmel guilty as charged, but it was unable to reach a verdict as to Tourine and Giordano. A subsequent motion by appellants’ counsel for a new trial on the ground of newly discovered evidence was denied, and each of the convicted defendants was sentenced to one year imprisonment and a $5,000 fine.
The appellants’ principal claim on appeal is that the court committed reversible error when it allowed undercover agent Murray to testify at the trial concerning the admissions made by them which he had heard. They cite as authority for their position Krulewitch v. United States, 336 U.S. 440, 442-443, 69 S.Ct. 716, 717, 93 L.Ed. 790 (1949), and Grunewald v. United States, 353 U.S. 391, 77 S.Ct. 963, 1 L.Ed.2d 931 (1957). Both of these cases concerned claims by the prosecution that the conspiracy had continued beyond the commission of the substantive offenses involved through a period during which the accused were trying to conceal the offenses and their participation in them. In the first of the two cases the purpose of the Government in trying to extend the period of the conspiracy was to get into evidence the complaining witness’ hearsay testimony of what a claimed eo-eonspirator said the defendant said. In the second of the two cases, the Government sought to get by a three-year statute of limitations by showing that the original conspiracy included, beside the arrangement for the substantive offense, an agreement and plan among the accused for concealment of the offense and their participation in it, and that the conspiracy continued through the carrying out of this plan of concealment. The Supreme Court held that there was no direct evidence of such an “express original agreement among the conspirators *»
The Government asserts there was such an agreement in the present case and points to some evidence in support of it. Whether there was sufficient to warrant a finding that the alleged conspiracy continued into the concealment and avoidance period need not be passed upon, however, because the inculpatory statements of the defendants, testified to by Murray were not told him by an alleged co-conspirator of the accused but by the defendants themselves. There was no need to show that the conspiracy extended beyond the point where the crate broke open and the true contents were disclosed and seized. The defendants’ statements qualified as admissions and were admissible as such as an exception to the hearsay rule. McCormick, Evidence ¶239, pp. 502-5 (1954).
The appellants object that even if this is so, the admissions were not sufficient, absent corroboration, to sustain a conviction under the holdings of Opper v. United States, 348 U.S. 84, 75 S.Ct. 158, 99 L.Ed. 101 (1954), and Smith v. United States, 348 U.S. 147, 75