expert
expert, n. A person who, through education or experience, has developed skill or knowledge in a particular subject, so that he or she may form an opinion that will assist the fact-finder. Fed. R. Evid. 702. See DAUBERT TEST. [Cases: Criminal Law 478–480; Evidence 535–546. C.J.S. Criminal Law §§ 1070–1071; Evidence §§ 521, 523–527, 599–600, […]