When an original writing or record must be used to prove the contents of the writing or record

United States v. Rommy, 506 F.3d 108, 139-140 (2d Cir. 2007) (upholding trial court's admission of the statement of a Dutch police, a colleague of the detective who testified about the transcript which identified....The Sixth Amendment Confrontation Clause places no limits on the admission at trial of nonhearsay statements made prior to or outside of trial.

United States v. Gabe, 237 F.3d 954, 960 (8th Cir. 2001) (upholding trial court's admission of testimony about two prior incidents of sexual abuse because it was probative as "it tends to prove [accused's] propensity to molest young children in his family when presented with an opportunity to do so...Evidence of a person's other sexual misconduct is frequently admissible in sexual assault cases, child molestation cases, and in civil cases involving claims of sexual misconduct.

United States v. Johnson, 354 F. Supp. 2d 939, 975 (N.D. Iowa 2005) (misdemeanor conviction of witness for indecent exposure; court's succinct discussion demonstrates the failure of three separate theories of admissibility of evidence about this act for impeachment: "Evidence of a felony conviction is...A party has a right to impeach a witness with a conviction for a crime involving dishonesty or false statement. The crime shall be considered a crime of dishonesty or false statement if and only if it readily can be determined that establishing the elements of the crime required proof or admission of an act of dishonesty or false statement by the witness.