Although not a PDD case, the Daubert case set aside the Frye Rule’s “general acceptability” provisions in favor of the Federal Rules of Evidence. The case paved the way for the admissibility of PDD evidence in most jurisdictions. The Daubert standard is a rule of evidence regarding the admissibility of expert witness testimony. Essentially it states that the judge is gatekeeper and determines what gets into evidence. The judge determines if it is relevant to this case and reliable. The judge also decides whether the evidence is based on scientific knowledge or methodology: falsifiable, refutable, and testable; subjected to peer review and publication; known or potential error rate; existence and maintenance of standards and controls concerning its operation, and; degree to which the theory and technique is generally accepted by a relevant scientific community. See: Daubert v Merrell Dow Pharmaceuticals, Inc. (1993).