dismissal. 5 . We emphasize that the district court, although permitting questions as to the appellant’s arrest and the circumstances thereof to show his participation in the drug-trafficking conspiracy and to corroborate the testimony of cooperating witnesses, precluded the government from introducing any evidence that local authorities charged or prosecuted Marrero. 6 . Withal, the court's decision to empanel four alternate jurors entitled the appellant to two additional peremptory challenges that he never received. See Fed.R.Crim.P. 24(c). But the appellant never objected to the number of challenges he was afforded anent the empanelment of the alternates and thus failed to preserve the right to raise this error on appeal. See United States v. Broadus, 7 F.3d 460, 463 (6th Cir.1993) (<HOLDING>); Carbo v. United States, 314 F.2d 718, 748
holding that failure to raise issue in brief constitutes waiver of appeal of the issue holding that a defendants failure to object to the denial of his right peremptorily to challenge alternates constitutes a waiver of any right to appeal the issue holding that the failure to object to a trial courts instruction constitutes waiver holding that the failure to object to an instruction constitutes a waiver of error holding that defendants failure to appeal the voluntariness of a plea constitutes waiver of the issue on subsequent appeal