Various circuits have come to different conclusions regarding the scope of permissible lay-opinion testimony. Some courts take a broad view of lay-witness opinions. For example, in U.S. v. Jayyousi, 657 F.3d 1085 (11th Cir. 2011), the Eleventh Circuit permitted an FBI agent to testify as to the meaning of alleged code words used between codefendants even though the calls were predominantly in Arabic and the agent did not speak the language. Taking a narrower view of Rule 701, the Sixth Circuit reached a different result in a case involving similar facts. In U.S. v. Freeman, 730 F.3d 590 (6th Cir. 2013), the Sixth Circuit Court of Appeals reversed and remanded a trial court’s decision to permit an FBI agent’s lay-witness testimony interpreting phone calls between codefendants. The agent had provided voice identifications and substantive interpretations of the meaning of various statements contained in the calls. The court focused on the fact that the agent lacked firsthand knowledge sufficient to lay a foundation for a lay-witness opinion under Rule 701(a).
One important issue that lawyers must consider when assessing whether reliance on lay or expert opinions will be necessary in a particular case is the disclosure requirements in Federal Rule of Civil Procedure 26(a)(2) that apply to expert testimony. Rule 26(a)(2) requires expert reports from retained experts. Conversely, lay-witness opinions typically need not be disclosed in advance of trial or supported by formal reports. However, given the fine line some courts draw between lay-witness opinions and expert testimony, lawyers must review the authority in their particular jurisdiction early in the case. To avoid any uncertainty, attorneys should consider either disclosing lay-witness opinions or pursuing an agreement with opposing counsel as to the exact nature of the disclosures required for specific testimony to be elicited in the case. Such disclosures or agreements will ensure that important testimony that counsel hopes to rely on is not excluded on the eve of trial.
Given the nuance between lay and expert testimony, an early assessment of what, if any, opinions witnesses may offer at trial is critical. Similarly, an understanding of how your particular court interprets the scope and requirements for lay opinions and expert-witness testimony is essential when developing your case strategy.