It appears we’re poised to see some changes to Federal Rule of Evidence section 702 for the first time since the 2000 amendments.

In an excellent article published by Butler Weihmuller Katz Craig LLP, attorney Scott Hefner provided an excellent history of FRE 702 and a summary of the proposed amendments which if adopted by the Supreme Court, will go into effect in 2023.

Mr. Hefner provided an outstanding summary of the Daubert Standard and its codification and I encourage you to read his article for further depth. I just wanted to provide the existing rule and the proposed changes for your review, so that you and your expert witness practice can be prepared for the possible changes to FRE 702.

Existing Rule 702:

A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if:

a. the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

b. the testimony is based on sufficient facts or data;

c. the testimony is the product of reliable principles and methods; and

d. the expert has reliably applied the principles and methods to the facts of the case.


Proposed Rule 702:

A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if the proponent has demonstrated by a preponderance of the evidence that:

a. the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

b. the testimony is based on sufficient facts or data;

c. the testimony is the product of reliable principles and methods; and

d. expert’s opinion reflects a reliable application of the principles and methods to the facts of the case.


For your convenience, I’ve bolded the changes in the proposed rule. In my reading, the only real substantive change is “the proponent has demonstrated by a preponderance of the evidence…” This is the standard that has always applied, but the advisory committee decided they needed to clarify the standard. Mr. Hefner’s article notes that the committee included the standard to “dispel the notion that expert testimony is presumed to be admissible.” In the years I’ve been working in the expert witness field, I’ve never known this to be presumed. In fact, since law school (i.e. as long as I can remember), the rule has always been that the court serves as the gatekeeper for allowing expert testimony.

Now, I would love feedback from readers on the other “substantive” change to section 702(d). When I look at the existing subsection and the proposed changes, it is difficult to identify how this will actually change anything in practice.

In fact, it seems Mr. Hefner and I are in full agreement on this subsection change. He even mentions, “The practical implications of the amendments remain up for debate.” To take it a step further, he quotes the Federal Magistrate Judges Association as viewing the proposal as not making changes at all but rather “largely clarifying existing practice.”


What do you think?

Do you think this proposal will have any substantive or practical effects? Let us know what you think in the comments or drop us an email at support@experts.com.

Posted by nickrishwain

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