Determinations of the relevance of evidence and of claims that evidence is unduly prejudicial are mainly for the trial court and are reviewable only for abuse of discretion.

United States v. Brink, 39 F.3d 419, 426 (3d Cir. 1994) (reversing conviction for bank robbery, armed bank robbery, and use of a firearm in a crime of violence because the trial court erroneously FBI agent's....A pretrial identification is exempt from the prohibition against hearsay evidence if the witness who made the identification testifies and is subject to cross-examination at the trial or hearing at which the identification is offered and if the witness who made the identification did so after perceiving the person whom he or she identified.

United States v. Mills, 895 F.2d 897, 907 (2d Cir. 1990) (upholding trial court's admission of accused's 1982 arrest and conviction for counterfeiting as proof of intent and identity where accused claimed absence of intent in accepting the bag of counterfeit bills, and the government, on rebuttal, showed...Evidence of another crime, wrong, or act is not barred by the prohibition against circumstantial use of character if such other crime, wrong, or act is offered to prove identity.

Fed. R. Evid. 801(d)(2).Personal and vicarious admissions are exempt from Federal Rule of Evidence 802's prohibition against the admission of hearsay evidence.