457 U.S. 624 (1982) Cited 773 times 22 Legal Analyses
Holding that "matters peculiar to the relationships among or between the corporation and its current officers, directors, and shareholders" are a corporation's internal affairs
Holding that expert testimony was inadmissible based on its unreliable methodology notwithstanding "the impressive qualifications of plaintiffs' experts"
Fed. R. Evid. 401 Cited 13,529 times 36 Legal Analyses
Providing that evidence is relevant if " it has any tendency to make a fact more or less probable than it would be without the evidence; and (b) the fact is of consequence in determining the action"
Fed. R. Evid. 703 Cited 4,762 times 27 Legal Analyses
Explaining that facts or data of a type upon which experts in the field would reasonably rely in forming an opinion need not be admissible in order for the expert's opinion based on the facts and data to be admitted
Fed. R. Evid. 602 Cited 3,528 times 13 Legal Analyses
Stating that " witness may testify only if evidence is introduced sufficient to support a finding that the witness has personal knowledge of the matter"