The Frye standard is an older legal standard as to the worthiness of admissibility of scientific evidence into a legal trial. It originates from the legal case Frye v. United States which was a murder case in 1923. The inclusion of a polygraph test as evidence was the issue at hand. The Frye standard states that any scientific method or practice must be generally accepted by the scientific community at large. This usually comes in the form of supporting testimony from scientific experts on the evidence in question. The Frye standard has largely been superseded by the Daubert standard or the Federal Rules of Evidence in most states.
This is a standard used to determine the admissibility of scientific evidence provided by a certain scientific technique in a court of law. An expert opinion based on a certain scientific technique is admissible in a court of law only where the applicable technique is generally accepted as reliable in the relevant scientific community. Less than ten states still adhere to this standard.