Convicted of making a false bomb threat on May 3, 1976 to the Federal No. 2 Mine, Eastern Associated Coal Corporation, Fair-view, West Virginia, in violation of 18 U.S.C. § 844(e), Paul Maurice Tibbetts appeals. His major assignment of error is the trial court’s admission into evidence of a tape recording of a prior telephone bomb threat in his voice made almost six months earlier — December 10, 1975 — to the No. 2 Mine. We affirm.
Three supervisors at the Mine, familiar with defendant’s voice, recognized it in the December 10, 1975 call. While never charged with this offense, he was put under surveillance on April 26, 1976. For this purpose private investigators were employed by Eastern Associated Coal Corporation and they co-ordinated their efforts with the State Police, the C. & P. Telephone Company and the FBI.
The night of May 3, 1976 at about 10:30 p.m. two of the investigators observed defendant in a pay telephone booth making a call. The bomb threat of that date, now indicted, was monitored at the very same time as this call by a Telephone Company employee.
In defendant’s trial, evidence was received of the prior tape of December 10, 1975. He complains that the testimony of that wrongdoing, although unprosecuted, prejudiced him at trial as well as denied him due process of law. The contention is without merit.
This proof came in to account for the surveillance and as explanation of how the Government discovered suspects of this type of crime. The procedure, we hold, did not infringe the defendant’s right of fair trial or Constitutional privilege. Of course, establishment of past criminal conduct by a defendant is not allowed when its only object or effect is to show an accused’s propensity toward crime. Federal Rules of Evidence 404(b). However, such evidence is admissible for other purposes.
United States v. DiZenzo,
Even assuming that the District Court erred in this ruling, it was harmless error. We assess it on the standard laid down in
Kotteakos v. United States,
Consideration has been given to appellant’s other assignments of error, but we see them as unsubstantiated. The judgment of the District Court must be upheld.
Affirmed.
