A court’s role is to act as a “gatekeeper” where evidence is concerned, and under Federal Rule of Evidence 702, a court should exclude expert testimony that is not reliable and helpful to the jury. Rule 702 provides that an expert’s opinion is reliable if (1) it is based upon sufficient facts; (2) it is the product of reliable principles and methods; and (3) the witness has applied the principles and methods reliably to the facts of the case. The United States District Court for the District of Columbia recently applied this three prong test and granted a defendant’s motion to exclude expert testimony in a defamation case.
In Parsi v. Daioleslam, Dr. Trita Parsi, president of the National Iranian American Council (NIAC) and NIAC filed a defamation action against Seid Hassan Daioleslam alleging that Daioleslam published numerous false and defamatory statements on internet websites characterizing plaintiffs as members of a subversive and illegal Iranian lobby. Plaintiffs alleged that defendant’s statements injured their reputations, hampered NIAC’s effectiveness as an advocacy group, and damaged their fundraising efforts. In support of their claims, plaintiffs proffered two experts. Plaintiffs hoped that the testimony of Debashis Aikat, a journalism professor, would establish that defendant’s writings did not meet the standard of care for journalists. Plaintiffs submitted the testimony of Joel Morse, a financial economist, to establish plaintiff’s economic damages suffered as a result of the alleged defamation. Defendant moved to exclude both men’s testimony, arguing that neither expert’s testimony met the standards of admissibility.
The court found all three reliability prongs of Rule 702 lacking in Aikat’s testimony. First, the “sufficient facts” Aikat relied on were defendant’s articles and sources cited therein. Because Aikat read only a haphazard selection of defendant’s sources and no background material, the court found the “facts and data” Aikat relied on to be insufficient. Second, the court found Aikat’s testimony was not the product of reliable principles and methods. Aikat refused to give any description of his methodology beyond reading and viewing. The court noted that Aikat’s methodology could have been to compare defendant’s performance to applicable professional standards, which would have been an acceptable methodology.