Evidence Commons^™

Expert Witness Testimony: Back To The Future, L. Timothy Perrin

University of Richmond Law Review

Expert witnesses are at once detested and treasured. The scorn is significant because of the increasingly prominent role experts play in both civil and criminal litigation. Experts are seen as mercenaries, prostitutes or hired guns, witnesses devoid of principle who sell their opinions to the highest bidder. Experts are not impartial professionals who explain difficult concepts to the trier of fact. Rather, experts become advocates for the side who hired them. The consequences of this role change are not desirable: experts testify to matters beyond their expertise, render opinions that are unreliable, speculative or outside what the experts would be …