The federal hearsay exception for past recollection recorded applies only if the witness made a memorandum or record of his or her recollection.

Fed. R. Evid. 404(b)(2) (providing that evidence of other crimes, wrongs, or acts "may be admissible for another purpose, such as proving . . . intent, . . . knowledge, . . . absence of mistake, or lack of accident").Evidence of a criminal or wrongful act apart from the act that at issue at trial Is not barred by the prohibition against circumstantial use of character if intent, knowledge, mistake, or accident is a legally-material factual issue, the opposing party suggests the non-existence of knowledge or urges mistake or accident as a defense, and evidence of another crime, wrong, or act is offered to prove the knowledge or the absence of mistake or accident by a criminal defendant or other person.

Fed. R. Evid. 801(d)(1)(2)(A) advisory committee's note (quote pertinent portion of Advsory Committee Note).A tacit admission is made when a party through silence adopts another person's statement and such an admission is exempt from the prohibition against hearsay evidence.

United States v. Garnett, 122 F.3d 1016, 1018-1019 (11th Cir. 1997) (upholding trial court's admission of a lab report prepared by Lee Ellis of the F.D.A. Forensic Chemistry Center as a business record because the proper....Document must have been prepared in the normal course of business.