Mary D. Fan

  • Jack R. MacDonald Endowed Chair
  • Professor of Law


Phone: (206) 543-2261


J.D. 2003, Yale Law School M.Phil. 2008, University of Cambridge B.A., magna cum laude, 2000, University of Arizona

Curriculum Vitae

Areas of Expertise

Criminal Law and Procedure — Evidence — Immigration and Refugee Law — Police and Law Enforcement — Privacy — Prosecution and Prosecutorial Ethics

Recent Courses

LAW A 505 Criminal Law
LAW B 515 Criminal Procedure: Investigation

Selected Publications

See the full list under the Publications tab below.

Professor Mary D. Fan's expertise includes criminal law and procedure, evidence, privacy, and immigration.  Her research and teaching are informed by her experiences as a federal prosecutor in the Southern District of California and as an associate legal officer at a United Nations criminal tribunal. She is the author of numerous articles, including most recently, The Right to Benefit from Big Data as a Public Resource in the NYU Law Review (2021) and two books: Camera Power: Proof, Policing, Privacy, and Audiovisual Big Data (Cambridge University Press 2019) and Perilous Science: Lessons from Firearms Violence Research on Knowledge in Political Minefields (Stanford University Press, forthcoming 2022).  Her scholarship has been cited by judges, including U.S. Supreme Court Justice Sonia Sotomayor, and in media venues such as The New York Times.
Trained in epidemiology and anthropology as well as law, Professor Fan collaborates on interdisciplinary violence prevention research as a core faculty member at Harborview Medical Center's Injury Prevention & Research Center.  Work in collaboration with epidemiologists at Harborview has appeared in venues such as the Annals of Internal Medicine and the American Journal of Public Health.  She was a Visiting Scientist at the Harvard School of Public Health in 2017-18.  In winter 2022, Professor Fan will be a Visiting Professor at Stanford Law School, where she will teach first-year criminal law.  Professor Fan is an elected member of the American Law Institute (ALI), an elected Life Fellow of the American Bar Association (ABA), and serves on the Board of Directors for the American Civil Liberties Union (ACLU)-Washington.

The student body has recognized Professor Fan’s teaching with a Philip A. Trautman Professor of the Year Award and she also has been nominated for the university-wide Distinguished Teaching Award.  She is a two-time recipient of the Dean's Medal for excellence in teaching, scholarship and service.
Mary Fan clerked for the Hon. John T. Noonan, Jr. of the U.S. Court of Appeals for the Ninth Circuit and for Judge O-Gon Kwon at the first war crimes tribunal since the World War II era. She received her J.D. from Yale Law School and her M.Phil. from the University of Cambridge, where she was a Gates Cambridge Scholar. At Yale, she was a Notes Editor for the Yale Law Journal, a Managing Editor for the Yale Journal of International Law, and a Coker Teaching Fellow. She was awarded the Jewell Prize and the Nathan Burkan Prize for her publications. 


Peer Reviewed Journals & Law Reviews

Books or Treatises

Book Chapters

News Media

Other Publications

  • Speaker, "Show Me the Video", Wake Forest Journal of Law & Policy Symposium, Wake Forest School of Law (November 12, 2021)
  • Speaker, "The Emotional Influence of Gruesome Images in the Courtroom", CLE, American Bar Ass’n (ABA) Mid-Year Meeting, 2021 (February 19, 2021)
  • Speaker, "Show Me the Video", George Washington Law Review Symposium on Policing (October 24, 2020)
  • Speaker, "Beyond Informed Consent: Lessons from Property and Commons Governance Theory for Pooled Personal Electronic Data", Research Symposium, Center for Long-Term Cybersecurity, University of California, Berkeley (September 11, 2020)
  • Speaker, "The Hidden Harms of Expanding Privacy Penalties", Research Symposium, Center for Long-Term Cybersecurity, University of California, Berkeley (July 30, 2020)
  • Speaker, "Show Me the Video", King County Department of Public Defense Training (June 16, 2020)
  • Speaker, "Show Me the Video", National Association of Criminal Defense Attorneys Training Seminar (February 1, 2020)
  • Speaker, "The Judge, the Refugee and the Deportee", University of California, Berkeley School of Law (September 6, 2019)
  • Speaker, "Perilous Science", University of California, Berkeley Program on Reducing Gun Violence (June 24, 2019)
  • Speaker, "Big Data, Big Decisions", with Ryan Calo, Spring Program, Washington Supreme Court and Appellate Judges (March 27, 2019)
  • Panelist, "Contemporary Issues in Policing Panel", Law of the Police Conference, University of South Carolina (March 1, 2019)
  • Speaker, "Starving Science: Producing Knowledge and Ignorance", Annual Meeting, Law & Anthropology Section Progam, Association of American Law Schools (January 5, 2019)
  • Speaker, "Audiovisual Analytics and Smarter Early Intervention Systems for Policing", Federal Responses to Police Misconduct: Possibilities and Limits, University of Illinois School of Law (April 4, 2018)
  • Speaker, "Firearms and Family Violence: Preventing Ordinary and Extraordinary Violence", Family Violence Symposium, Continuing Medical Education, Kaiser Permanente Doctors (March 9, 2018)
  • Speaker, "Nondisclosure of Police Body Camera Videos", Law Review Symposium: Badge Cams as Data and Deterrent: Law Enforcement, the Public and the Press in the Age of Digital Video, University of North Carolina School of Law (November 3, 2017)