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.  
							The Virginia Defamation Law Blog


professional and personal reputation within the community and the tri-state area, emotional and physical pain, disgrace, and stress within his marriage and with his family, embarrassment, and loss of opportunity to achieve his potential as a professional.”  Phillips suggests that the severity of the impact of these stories on him is a result of the fact that he is an active member of the community.  He has coached a Special Olympics basketball team for over 18 years, is a member of multiple legal professional groups and country clubs, and maintains an active legal practice in multiple states.  
quash the subpoena to protect his identity.  (Apparently the allegations are that “John” received breast augmentation surgery, which is why I’m referring to “his” identity).