Frye v. United States
The following is the appellate opinion in Frye v. United States which was affirmed by the Court of Appeals, District of Columbia in 1923. Until the Daubert v. Merrill Dow US Supreme Court decision in 1993 and the Daubert standard for expert testimony replaced the Kelly/Frye standard in Federal matters (Frye still remains the standard for expert testimony in many states) Frye was the standard in state and federal courts for 70 years.