Justin Marceau

Visiting Professor of Law

Spring 2020


Justin F. Marceau is Professor of Law at the University of Denver. He serves as the reporter for the pattern criminal jury instruction committee of the U.S. Court of Appeals for the Tenth Circuit, and as an inaugural member of PAW task force, which was formed by a proclamation of the Governor of Colorado to advise on strategies for improving the protection of animals in Colorado. He is the recipient of numerous awards, including the Justice for Animals Award, the Colorado Criminal Defense Bar’s Gideon Award, and the outstanding teacher award.

Prior to coming to becoming a law professor, Marceau was an assistant federal public defender specializing in capital habeas and a law clerk for the Ninth Circuit Court of Appeals. He has conducted empirical as well as doctrinal research, and his quantitative studies of the death penalty in Colorado have resulted in him serving as an expert witness in numerous cases. Marceau has also worked as a consultant or as the counsel of record in numerous criminal and civil rights cases, including excessive force and unlawful search and seizure cases. He was one of the architects and attorneys of record in the cases challenging as unconstitutional the Ag-Gag laws.

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