United States v. Samet

United States Court of Appeals for the Second Circuit · 2006 · Evidence

466 F.3d 251 (2d Cir. 2006)

Updated August 22, 2026

EvidenceFederal Rule of Evidence 701Federal Rule of Evidence 901(b)(2)lay opinionhandwriting authenticationfamiliarity not acquired for purposes of litigationhelpfulness to juryabuse of discretion

Facts

The government introduced many documents seized from offices out of which the enterprise operated. Postal Inspector Patricia Thornton worked on the investigation for several years and spent most of her time on the case; during that investigation she viewed documents containing Hollender's handwriting, including his passport, driver's license, check register, and post-arrest documents. At trial, she testified that certain signatures and handwriting samples were Hollender's and was able to identify numerous samples without reviewing notes or known exemplars. The district court struck her testimony about Samet's handwriting because she relied on comparisons and was not sufficiently familiar with it, but it retained her testimony about Hollender.

Issue

When a lay witness offers opinion testimony identifying a person's handwriting, must the testimony satisfy both Federal Rule of Evidence 701 and Rule 901(b)(2)? If so, did the district court abuse its discretion by admitting Inspector Thornton's testimony identifying Hollender's handwriting?

Rule

A lay witness who testifies to an opinion regarding someone else's handwriting must satisfy both Rule 701 and Rule 901(b)(2). The witness's familiarity with the handwriting must not have been acquired solely for purposes of litigation, and the testimony must be rationally based on the witness's perception and helpful to the jury; a witness who forms the opinion only by comparing exemplars for trial offers unhelpful lay testimony because the jury can do the same comparison.

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In a fraud trial in Chicago, the prosecution offers dozens of invoices already admitted as business records. To link several handwritten notations on those invoices to Dana Mercer, the prosecution calls Investigator Leo Park, who spent two years reviewing Mercer's driver's-license application, signed account forms, and jail intake papers during the investigation and says he can recognize her handwriting without looking at exemplars.

Is Park's testimony most likely admissible as lay opinion identifying Mercer’s handwriting?

Explanation. A lay witness identifying another person's handwriting must satisfy both Rule 701 and Rule 901(b)(2). The documents' prior admission for another purpose does not eliminate the need to authenticate the handwriting as Mercer’s if that link is used to connect her to the documents. Park's familiarity arose through extended investigative work, not solely to testify, and his ability to identify the handwriting without exemplar comparison makes the testimony helpful under Rule 701.