James Greiner is a Professor of Law at Harvard Law School. He teaches courses on civil procedure, expert witnesses, and voting regulation. His current research focuses on designing interventions and conducting evaluations in the areas of access to justice, judicial administration, and adjudicatory system design in civil and criminal law contexts. His current projects include randomized field experiments in state and federal courts and administrative agencies across the country. Greiner holds a Ph.D. in Statistics from Harvard University.