Hearsay

Cross-examination of expert witnesses is one of the most powerful tools in a trial attorney’s arsenal — but it has firm limits. In New York, a party cannot use cross-examination as a vehicle to inject hearsay evidence or unverified medical literature into the trial record. The rules governing the scope of cross-examination of expert witnesses, particularly medical examiners, are designed to prevent exactly that kind of back-door evidentiary gambit.

Under New York law, before an expert can be cross-examined using a learned treatise or medical text, the cross-examiner must first establish that the text is recognized as authoritative — either through the testimony of the witness being examined, through other expert testimony, or by judicial notice. Without that foundation, questions based on the text are improper. Similarly, an expert cannot be questioned about the contents of reports that were never admitted into evidence, because doing so would allow hearsay to influence the jury without any opportunity for the opposing party to challenge the reliability of those documents.

These principles, though developed in the criminal context, apply with equal force in civil litigation, including personal injury and no-fault insurance trials. When a plaintiff’s attorney attempts to cross-examine a defense medical expert using texts the expert has not acknowledged as authoritative, or by referencing reports not in evidence, defense counsel must be prepared to object and protect the record.

Case Background

In People v Laracuente, the defendant challenged the trial court’s decision to limit his cross-examination of the Deputy Medical Examiner. The Fourth Department upheld the limitation, finding that the trial court acted well within its discretion. The defendant had attempted to question the medical examiner using a text that had not been established as authoritative and to reference hearsay information contained in a report that was not admitted into evidence. The court also sustained the limitation of recross-examination to the scope of the People’s redirect, consistent with established procedural rules.

Jason Tenenbaum’s Analysis:

People v Laracuente, 21 AD3d 1389 (4th Dept. 2005)

“We reject the further contention of defendant that the court abused its discretion in limiting his cross-examination of the Deputy Medical Examiner (see People v Perez, 299 AD2d 427 , lv denied 99 NY2d 618 ; People v Rodriguez, 184 AD2d 599 , lv denied 80 NY2d 933 ). Indeed, the court properly limited the cross-examination in order to prevent questioning with respect to a text that was not established to be authoritative (see People v Feldman, 299 NY 153, [*2]168 ; Prince, Richardson on Evidence § 7-313 ), and to prevent questioning concerning hearsay information in a report that was not admitted in evidence (see generally People v Jones, 73 NY2d 427, 430 ; People v Kaplan, 167 AD2d 273 , lv denied 77 NY2d 879 ). Furthermore, the court properly limited defendant’s recross-examination of the Deputy Medical Examiner to the scope of the People’s questioning on redirect examination (see e.g. People v Hemphill, 247 AD2d 339 , appeals dismissed 92 NY2d 846 , lv denied 92 NY2d 898 ).”

Use this when the plaintiff attempts to have your expert agree with certain non authorative texts or statements from reports that are not in evidence.

Legal Significance

The Laracuente decision is anchored in a long line of New York authority. The foundational case, People v Feldman (299 NY 153), established the requirement that a text must be recognized as authoritative before it can be used on cross-examination. This rule serves a critical gatekeeping function: it prevents attorneys from selectively quoting from obscure or unreliable publications to manufacture the appearance of a contradiction in the expert’s testimony.

The hearsay dimension is equally important. Under People v Jones (73 NY2d 427), the Court of Appeals made clear that expert testimony must be grounded in evidence properly before the court. When an attorney attempts to cross-examine an expert using a report that was never admitted, the attorney is effectively trying to get the substance of that report before the jury without subjecting it to the rules of admissibility. The trial court has broad discretion to prevent this.

Practical Implications

Defense attorneys should be prepared to invoke Laracuente and its underlying precedent whenever opposing counsel attempts to cross-examine a defense medical expert using texts or reports that lack a proper evidentiary foundation. The objection should be made promptly — failure to object may waive the issue on appeal.

On the flip side, attorneys who intend to use medical literature on cross-examination must lay the proper foundation first. The most effective approach is to ask the expert during direct or cross-examination whether they consider a particular text authoritative in the field. If the expert declines to acknowledge the text, counsel may still attempt to establish its authoritative status through another expert or through judicial notice, but this requires advance planning.

Key Takeaway

New York courts will limit cross-examination of expert witnesses to prevent questioning based on texts not established as authoritative and reports not admitted into evidence. Attorneys must lay a proper foundation before using medical literature to challenge an expert’s opinions, and trial courts have broad discretion to enforce these evidentiary boundaries.

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