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Daubert Trilogy

Definition

The three US Supreme Court decisions that together define the federal standard for expert testimony admissibility: Daubert v. Merrell Dow Pharmaceuticals (1993), General Electric Co. v. Joiner (1997), and Kumho Tire Co. v. Carmichael (1999).

Case 1
Daubert v. Merrell Dow Pharmaceuticals, 1993
Case 2
General Electric Co. v. Joiner, 1997
Case 3
Kumho Tire Co. v. Carmichael, 1999
Court
US Supreme Court

Common questions

What did Kumho Tire add to the standard that Daubert alone did not establish?+

Kumho Tire extended the trial judge's gatekeeping obligation beyond scientific testimony to all expert testimony, including technical and other specialised knowledge such as engineering or tool-mark analysis, confirming that the reliability inquiry applies broadly rather than only to evidence framed as hard science.

What did Joiner clarify about how appellate courts review a trial judge's admissibility ruling?+

General Electric Co. v. Joiner established that appellate courts review a trial judge's decision to admit or exclude expert testimony under the deferential abuse-of-discretion standard rather than reviewing the reliability question fresh, making trial-level Daubert rulings hard to overturn on appeal.

Related terms

Abuse of Discretion
The standard of appellate review established by Joiner for Daubert rulings. An appellate court will reverse a trial judge's gatekeeping decision only...
Daubert Gatekeeping
The judicial function under Daubert v. Merrell Dow Pharmaceuticals (1993) and Federal Rules of Evidence Rule 702, requiring the trial judge to...
Error Rate
One of the Daubert factors: the known or potential rate at which a method produces false positives or false negatives, and whether...
Federal Rule of Evidence 702
The US federal rule governing expert testimony. As amended through 2023, it requires that expert opinion be based on sufficient facts or...
Frye Standard
The US legal test for admissibility of scientific evidence, originating from Frye v. United States (1923), which required that a technique be...

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