Washington, D.C. product liability cases often require expert testimony concerning the connection between the defective product and the resulting injuries. The District of Columbia Court of Appeals, the highest court for the District of Columbia, decided in 2016 that District of Columbia courts would apply the Daubert standard embodied in Rule 702 of the Federal Rules of Evidence to determine the admission of expert testimony in civil and criminal cases.
Under Rule 702, a witness is qualified as an expert if:
- The expert’s specialized knowledge will help the trier of fact to understand the evidence in the case or to determine a fact in issue;
- The expert’s testimony is based on sufficient facts or data; the testimony is based on reliable principles and methods; and
- The expert has “reliably applied the principles and methods to the facts of the case.”
The District of Columbia Court of Appeals determined this rule is broad enough to permit testimony “that is the product of competing principles or methods in the same field of expertise.”