Posts discussing laws and court precedent regarding expert witnesses.
The state of Minnesota follows the Frye-Mack test for the admissibility of expert witness testimony. State v. Hull, 788 N.W.2d 91 (Minn. 2010). This test has two prongs that must be passed before expert testimony can be admitted. Id. The first prong is “whether experts in the field widely share the view that the results [...]
The state of Massachusetts follows the Daubert test for expert witness admissibility. Com v. DiCicco, 25 N.E.3d 859 (Mass. 2015). This test applies to expert testimony that involves “conclusions based on personal observation or clinical experience.” Id. Under this test, in order for expert testimony to be admissible, the expert’s testimony has to “have [...]
The state of Maryland follows the Frye test for expert witness admissibility. Savage v. State, 166 A.3d 183 (Md. 2017). This test requires that for expert testimony to be admissible the underlying “basis of that opinion must be shown to be generally accepted as reliable within the expert’s particular scientific field.” Id. If an [...]
The state of Maine does not follow the Daubert or Frye test for the admissibility of expert witness testimony, but instead follows the Williams test. State v. Bickart, 963 A.2d 183 (Me. 2009). This test requires that the court find the expert’s testimony to be “sufficiently reliable to be held relevant.” Id. To determine [...]
The state of Louisiana follows the Daubert test for the admissibility of expert witness testimony. State v. Francois, 134 So.3d 42 (La. Ct. App. 2014). Under this test, the court should consider: “(1) whether the theory or technique can be and has been tested; (2) whether the theory or technique has been subjected to [...]
The state of Kentucky follows the Daubert test for the admissibility of expert witness testimony. City of Owensboro v. Adams, 136 S.W. 446 (Ky. 2004). Under this test the court should consider: “ (1) whether the theory or technique can be or has been tested; (2) whether it has been subjected to peer review [...]
The state of Kansas follows the Frye tests for the admissibility of expert witness testimony. In re Girard, 294 P.3d 236 (Kan. 2013). Under this test, the party offering the expert’s testimony must show “that the basis of a scientific opinion is generally accepted as reliable within the expert’s particular scientific field.” Id. In [...]
The state of Iowa does not strictly follow the Daubert test for the admissibility of expert witness testimony, but instead the courts are strongly encouraged to consider the Daubert test when determining the admissibility of expert witness testimony. Frank v. GITS Manufacturing, 786 N.W.2d 519 (Iowa Ct. App. 2010). Specifically, the Daubert test is [...]
The state of Indiana follows the Daubert test for expert witness admissibility. Turner v. State, 953 N.E.2d 1039 (Ind. 2011). Under this test, expert witness testimony is only admissible if “the scientific principles upon which the expert testimony rests are reliable.” Id. Factors that the courts should consider are whether “(1) the testimony is [...]
The state of Idaho does not follow either the Daubert or Frye test for the admissibility of expert witness testimony. Clair v. Clair, 281 P.3d 115 (Idaho 2012). Instead, Idaho follows its Rule of Evidence, Rule 702. Id. This statute states that an expert can testify regarding scientific or technical methods if the court finds [...]