Mealey's (December 14, 2020, 11:30 AM EST) -- NEW ORLEANS — An accident reconstruction expert witness retained by a defendant in a car crash lawsuit may testify on topics such as motorcycle speed at impact but is barred from offering testimony based on eye-witness accounts that claim to have seen a speeding motorcycle before the accident, a federal judge in Louisiana ruled Dec. 11 (Melissa Rivera, et al. v. Jennifer Robinson, et al., No. 18-14005, E.D. La., 2020 U.S. Dist. LEXIS 233099)....