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 based upon sufficient facts or data, (2) the testimony is the product of reliable principles and methods, and (3) the witness has applied the principles and methods reliably to the facts of the case.” Id. In Indiana, there is no express requirement that all of these factors be met, but they are to be considered by the court in evaluating the admissibility of expert witness testimony. Id. Indiana favors allowing expert testimony liberally and letting cross-examination show which evidence is most credible. Id.
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