United States v. Carl Joseph Baller, Jr.

BUTZNER, Circuit Judge:

Carl J. Bailer, Jr., was convicted by a jury of four counts of telephoning bomb threats. The principal issue on appeal is the admissibility of expert testimony identifying his voice by spectrographic analysis. We hold that the evidence was properly admitted and affirm the judgment.

Bailer was an employee of the Shoemaker Coal Mine in Benwood, West Virginia. During 1972 and early 1973, the mine received anonymous, telephoned bomb threats. In an effort to detect the caller, mine clerks tape-recorded four bomb threats, and the telephone company traced the fourth call to…