Meaning
Legal framework used by judges to assess whether expert testimony is based on scientifically valid reasoning and methodology. The Daubert evidentiary standard requires the presiding judge to act as a gatekeeper for specialized knowledge. It applies to both civil and criminal litigation in federal courts.
This rule ensures that a jury only hears evidence that is reliable and relevant to the case at hand.
Scientific Validity
The court examines whether the theory or technique behind the evidence has been tested and subjected to peer review. Under the Daubert evidentiary standard, the potential rate of error is also a notable factor in the determination.
Judicial Discretion
Judges have wide latitude to exclude testimony that they deem speculative or lacking in technical foundation. The application of the Daubert evidentiary standard often involves a pre-trial hearing where experts must defend their calculations and data sources. This process protects the integrity of the trial by preventing the introduction of unreliable science.
Lawyers must carefully select witnesses who can withstand this level of scrutiny regarding their qualifications and the tools they used.
Market Impact
Companies involved in patent or trade secret litigation rely on this rule to disqualify weak technical arguments from competitors. Strict adherence to the Daubert evidentiary standard forces firms to maintain high quality control over their internal research and data collection.