To Depose or Not to Depose: When Challenging Opposing Nonretained Experts Becomes Challenging

Federal Rule of Civil Procedure 26(a)(2) requires parties to disclose the opinions of experts who may present evidence at trial. If the disclosures are inadequate, Rule 37(c) requires exclusion of the opinions “unless the failure was substantially justified or is harmless.” This almost automatic exclusionary rule can pose issues when deciding whether to depose an opposing expert. Although “Rule 26(a)(2) does not allow parties to cure deficient expert reports by supplementing them with later deposition testimony,” Ciomber v. Coop. Plus, Inc., 527 F.3d 635, 642 (7th Cir. 2008), some courts nevertheless may consider an inadequate disclosure to be “harmless” once the expert’s opinions have been fully explored at deposition. On the other hand, although “[c]ourts have uniformly rejected the [idea] that the failure to depose an expert affects the right to object to the expert's testimony,” Hinton v. Outboard Marine Corp., 828 F. Supp. 2d 366, 370 (D. Me. 2011) (collecting cases), a party may need to depose an opposing expert in order to properly set up a challenge to the expert’s opinions for purposes of Federal Rule of Evidence 702 or trial if the court deems the expert’s disclosure adequate. This issue becomes particularly acute as applied to nonretained experts, who need not provide a written report under Rule 26. A recent opinion from the Northern District of Indiana aptly illustrates the quandary.