What is the function of expert testimony under Rule 702?

What is the function of expert testimony under Rule 702?

• A. To assist the trier of fact by providing specialized knowledge based on reliable methods applied to the case facts.
• B. To replace the jury.
• C. To prove the credibility of witnesses.
• D. To summarize the entire case.

Answer: (A)

Expert testimony under Rule 702 is about helping the fact-finder understand the case by bringing in specialized knowledge that is based on reliable methods applied to the facts at issue. The witness must be qualified as an expert, and the methods used to reach conclusions must be reliably applied to the case facts. This allows the jury to grasp complex or technical aspects that are beyond lay understanding and to use that insight to decide the relevant issues. It is not intended to replace the jury, test the credibility of witnesses, or summarize the entire case. In short, its function is to illuminate the evidence with trustworthy expert analysis that assists the fact-finder.

Expert testimony under Rule 702 is about helping the fact-finder understand the case by bringing in specialized knowledge that is based on reliable methods applied to the facts at issue. The witness must be qualified as an expert, and the methods used to reach conclusions must be reliably applied to the case facts. This allows the jury to grasp complex or technical aspects that are beyond lay understanding and to use that insight to decide the relevant issues. It is not intended to replace the jury, test the credibility of witnesses, or summarize the entire case. In short, its function is to illuminate the evidence with trustworthy expert analysis that assists the fact-finder.