Professor Marceau’s research interests include habeas corpus, the death penalty, criminal procedure, criminal law, constitutional law and animal law. Professor Marceau also litigates and consults for a leading animal welfare non-profit, the Animal Legal Defense Fund.
Prior to joining the faculty at the Sturm College of Law, Professor Marceau clerked for the Honorable Sydney R. Thomas, Ninth Circuit Court of Appeals, and worked as a litigation associate with the law firm Heller Ehrman, LLP (San Francisco). Subsequently, Professor Marceau was an Assistant Federal Public Defender (District of Arizona) specializing in capital habeas corpus appeals. Professor Marceau continues to actively practice law as counsel of record, as a consultant, and as an expert witness. Since joining the faculty he was lead counsel in a federal habeas corpus trial and he has been counsel of record on a number of briefs. He has lectured at CLEs and been invited to present his work to judicial conferences. He regularly consults on cases with habeas attorneys and joins or authors amicus briefs for the Supreme Court.