Justin Marceau

(303) 871-6449

Criminal Law
Criminal Procedure
Advanced Criminal Procedure
Constitutional Litigation
Animal Law

Professor and Animal Legal Defense Fund Professor of Law
Criminal Law and Procedure
Constitutional Law
Environmental and Natural Resources Law

B.A., summa cum laude, 2000, Boston College (Philosophy)
J.D., cum laude, Harvard Law

Professor Marceau joined the College of Law in 2008. The focus of his teaching and scholarship includes criminal law, criminal procedure, federal jurisdiction, constitutional law, habeas corpus, the death penalty, and animal law. He graduated first in his class from Boston College and from Harvard Law School, cum laude. He is a co-author of textbooks on the death penalty (2016 West) and Habeas Corpus (2012 Carolina), and he is working on a scholarly monograph regarding animal rights and the criminal law (2018 Cambridge). His most recent articles have been published in, among other places, the Yale Law Journal, the Columbia Law Review, the Vanderbilt Law Review, the Boston College Law Review, and the George Washington Law Review. He has previously been voted best teacher of the year.

Professor Marceau holds what is believed to be the first animal law chair in the country, the Animal Legal Defense Fund Professorship. He was honored as the 2016 Vermont Law School Distinguished Scholar in Sustainable Agriculture and Food Systems and spent two weeks in residence at the Vermont Law School. He is actively researching a variety of food and animal law issues in preparation for a variety of courses and articles he hopes to pursue in the future.

Prior to joining the faculty, Professor Marceau clerked on the Ninth Circuit Court of Appeals and worked as an Assistant Federal Public Defender. Professor Marceau remains an active litigator. He has represented capital prisoners, non-capital prisoners, individuals and a variety of professional organizations, including the National Association of Criminal Defense Lawyers, and the Animal Legal Defense Fund. He works on cutting edge constitutional, civil rights and criminal cases.

Featured Publications

Gideon’s Shadow, 122 Yale L. J. 2482 (2013).

Is Guilt Dispositive? Federal Habeas after Martinez, 55 William & Mary Law Review 2071 (2014).

Killing for your Dog, 83 Geo. Wash. L. Rev. 943 (2015).

High Value Lies, Ugly Truths and the First Amendment, co-authored with Alan Chen, 69 Vand. L. Rev. 1435 (2015).

Free Speech and Democracy in the Video Age, co-authored with Alan Chen, 116 Colum. L. Rev. 991 (2016).

How the Animal Welfare Act Harms Animals, 69 Hastings Law Journal 925 (2018).


  • ANIMAL PROTECTION AND CRIMINAL PUNISHMENT, Cambridge University Press, 2018.
  • THE DEATH PENALTY IN A NUTSHELL, FIFTH EDITION (Thomson/West Publishing 2016) (with Victor Streib and Sam Kamin).
  • CASES AND MATERIALS ON THE DEATH PENALTY, FOURTH EDITION (Thomson/West Publishing 2016) (with Nina Rivkind, Steven Shatz, and Sam Kamin).
  • FEDERAL HABEAS CORPUS: CASES AND MATERIALS, 2d. ed. (Carolina Academic Press 2011) (with Andrea Lyon, Emily Hughes, and Mary Prosser).
Sturm College of Law
University of Denver
2255 E. Evans Avenue
Denver, CO 80208