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plaintiffdefendantliabilitytestimonymotion
plaintiffdefendanttestimonymotionsummary judgmentwill

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Sanders v. U.S.

Facts

Plaintiff Matthew Sanders suffered a head injury while playing ice hockey, which he claims was caused by a defect in a helmet manufactured by Bauer Nike Hockey, Inc. He proffered expert testimony from neuropsychologists to establish a causal link between the concussion he received while wearing the helmet and his reported symptoms. Defendants challenged the reliability of this expert testimony and also presented their own expert to argue the safety of the helmet design.

The facts of this case are set forth more fully in this Court's ruling on Defendants' motions for summary judgment. Plaintiff proffered his retained and treating neuropsychologists, Dr. David Hartman and Dr. Robert Theisen respectively, to prove a causal link between the concussion he received in November 1997 while wearing Defendants' helmet and his reported symptoms in the years following. Defendants challenge Dr. Theisen on the grounds his tests could not produce a reliable opinion on the causation of Plaintiff's alleged present-day injuries. Defendants also claim Dr. Hartman's methodology renders his opinions inherently unreliable.

Issue

The main legal issues were whether the expert testimony regarding causation was admissible under Federal Rule of Evidence 702 and the standards set forth in Daubert v. Merrell Dow Pharmaceuticals, Inc.

The main legal issues were whether the expert testimony regarding causation was admissible under Federal Rule of Evidence 702 and the standards set forth in Daubert v. Merrell Dow Pharmaceuticals, Inc.

Rule

Federal Rule of Evidence 702 states that expert testimony is admissible if it is based on sufficient facts or data, is the product of reliable principles and methods, and the witness has applied these principles and methods reliably to the facts of the case.

Federal Rule of Evidence 702 sets out the criteria under which expert opinion testimony may be admissible. Rule 702 provides that: If scientific, technical, or other specialized knowledge will assist the trier of fact to understand the evidence or to determine a fact in issue, a witness qualified as an expert by knowledge, skill, experience, training or education, may testify thereto in the form of an opinion or otherwise, if 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.

Analysis

The court analyzed the qualifications and methodologies of the experts presented by both parties. It found that the testimony of Defendants' expert, P. David Halstead, was sufficiently reliable as it was based on industry standards and relevant data. The court also determined that the testimony of Plaintiff's experts, Dr. Theisen and Dr. Hartman, was relevant and fit the facts of the case, thus allowing their testimony to be presented to the jury.

The court analyzed the qualifications and methodologies of the experts presented by both parties. It found that the testimony of Defendants' expert, P. David Halstead, was sufficiently reliable as it was based on industry standards and relevant data. The court also determined that the testimony of Plaintiff's experts, Dr. Theisen and Dr. Hartman, was relevant and fit the facts of the case, thus allowing their testimony to be presented to the jury.

Conclusion

The court denied the motions to exclude expert testimony from both parties, allowing the case to proceed with the expert opinions being presented to the jury.

The court denied the motions to exclude expert testimony from both parties, allowing the case to proceed with the expert opinions being presented to the jury.

Who won?

Neither party prevailed in the motions to exclude expert testimony, as both motions were denied, allowing both sides to present their expert opinions.

Neither party prevailed in the motions to exclude expert testimony, as both motions were denied, allowing both sides to present their expert opinions.

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