Effective Expert Witnessing. Third Edition incorporates recent court rulings concerned with reliability, relevancy, and admissibility of expert testimony, which have drastically altered the nature of expert witnessing and trial strategy. The author emphasizes the importance of the U.S. Supreme Court ruling in Daubert v. Merrill Dow Pharmaceuticals, which challenges attorneys to secure the services of experts who can survive the serious scrutiny of Federal and state judges performing a gatekeeping function to keep unreliable scientific testimony from juries