Gerry Leonard

Gerald F. Leonard

Professor of Law

Law Alumni Scholar

AB, Oberlin College
PhD in History, University of Michigan
JD magna cum laude, University of Michigan


Biography

Gerald Leonard is a leading historian of American constitutionalism. He is the author of two books that helped launch and extend the “constitutional politics,” or “popular constitutionalism,” approach to American constitutional history: The Partisan Republic: Democracy, Exclusion, and the Fall of the Founders’ Constitution, 1780s-1830s (Cambridge University Press, 2019) (with Saul Cornell), and The Invention of Party Politics: Federalism, Popular Sovereignty, and Constitutional Development in Jacksonian Illinois (University of North Carolina Press, 2002). His other writings have offered reevaluations of the Dred Scott case, Thomas Jefferson’s constitutional thought, Oliver Wendell Holmes’s philosophies of constitutional and criminal law, and the history of American approaches to substantive criminal law. He is coeditor of the pamphlet series, New Essays on American Constitutional History, for the American Historical Association. Professor Leonard also writes about contemporary criminal law, challenging conventional views about mistake of law and about federal sentencing, among other matters.

A faculty member since 1997, and Law Alumni Scholar since 2007, Professor Leonard served as associate dean for academic affairs from 2006 to 2009. Before coming to BU, Professor Leonard clerked for the Honorable David Souter of the United States Supreme Court and for the Honorable J. Dickson Phillips, Jr., of the United States Court of Appeals for the Fourth Circuit.

Publications

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  • Matthew Crow, Katlyn Marie Carter, Graham G. Dodds, Jessica K. Lowe, Stephen J. Rockwell, Saul Cornell & Gerald F. Leonard, The Partisan Republic: Democracy. Exclusion, the the Fall of the Founders' Constitution, 1780s-1830s 16 Federal History Journal (2024)
    Scholarly Commons
  • Gerald F. Leonard, Review of Daniel Webster and the Unfinished Constitution by Peter Charles Hoffer 52 Journal of Interdisciplinary History (2022) (book review)
    Scholarly Commons
  • Gerald F. Leonard, Review of The Injustices of Rape: How Activists Responded to Sexual Violence, 1950–1980 by Catherine O. Jacquet 107 Journal of American History (2021) (book review)
    Scholarly Commons
  • Gerald F. Leonard & Saul Cornell, The Partisan Republic: Democracy, Exclusion, and the Fall of the Founders' Constitution, 1780s-1830s (2019)
    Scholarly Commons
  • Gerald F. Leonard, Jefferson's Constitutions, in No. 14-68 Boston University School of Law, Public Law Research Paper (2014)
    Scholarly Commons
  • Gerald F. Leonard, Fletcher v. Peck and Constitutional Development in the Early United States 47 U. C. Davis Law Review (2014)
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  • Gerald F. Leonard & Christine Dieter, Punishment Without Conviction: Controlling the Use of Unconvicted Conduct in Federal Sentencing 17 Berkeley Journal of Criminal Law (2012)
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  • Gerald F. Leonard, Law and Politics Reconsidered: A New Constitutional History of Dred Scott 34 Law and Social Inquiry (2009)
    Scholarly Commons
  • Gerald F. Leonard, Some Reasons Why Criminal Harms Matter, in Criminal Law Conversations (Paul H. Robinson, Stephen P. Garvey & Kimberly Kessler Ferzan,2009)
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  • Gerald F. Leonard & Saul Cornell, The Consolidation of the Early Federal System, 1791-1812, in The Cambridge History of Law in America (Michael Grossberg & Christopher Tomlins,2008)
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  • Gerald F. Leonard, Civilizing Darwin: Holmes on Criminal Law, in Modern Histories of Crime and Punishment (Markus D. Dubber & Lindsay Farmer,2007)
    Scholarly Commons
  • Gerald F. Leonard, Iredell Reclaimed: Farewell to Snowiss's History of Judicial Review 81 Chicago-Kent Law Review (2006)
    Scholarly Commons
  • Gerald F. Leonard, Holmes on the Lochner Court 85 Boston University Law Review (2005)
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  • Gerald F. Leonard, Towards a Legal History of American Criminal Theory: Culture and Doctrine from Blackstone to the Model Penal Code 6 Buffalo Criminal Law Review (2003)
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  • Gerald F. Leonard, The Invention of Party Politics: Federalism, Popular Sovereignty, and Constitutional Development in Jacksonian Illinois (2002)
    Scholarly Commons
  • Gerald F. Leonard, Party as a "Political Safeguard of Federalism": Martin Van Buren and the Constitutional Theory of Party Politics 54 Rutgers Law Review (2001)
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  • Gerald F. Leonard, Rape, Murder, and Formalism: What Happens If We Define Mistake of Law? 72 University of Colorado Law Review (2001)
    Scholarly Commons
  • Gerald F. Leonard, Comment on Frederick Schauer's Prediction and Particularity Comment 78 Boston University Law Review (1998)
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  • Gerald F. Leonard, Federal Law and Athletic Eligibility for Students with Disabilities 27 School Law Bulletin (1996)
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  • Gerald F. Leonard, The Ironies of Partyism and Antipartyism: Origins of Partisan Political Culture in Jacksonian Illinois 87 Illinois Historical Journal (1994)
    Scholarly Commons
  • Gerald F. Leonard, Partisan Political Theory and the Unwritten Constitution: The Origins of Democracy in Illinois, 1818-1840 (1992) (Dissertation, The University of Michigan)
    Scholarly Commons

In the Media

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  • The Daily Free Press April 17, 2025

    BU Faculty Sign Letter Advocating Resistance to Trump Administration

    Gerry Leonard is quoted.
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  • WBUR May 18, 2023

    Mass. High Court Says Pedestrians Could Challenge Arrests for Racial Bias

    Gerald F. Leonard appears on a radio show.
    read more

  • Hi-Fi Nation podcast June 15, 2020

    The Loophole: When an Acquittal Isn’t Really an Acquittal

    Gerald Leonard interviewed.
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Stories from The Record

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Activities & Engagements

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Courses

LAW JD 946

Criminal Law

4 credits

Examines the basic principles of substantive criminal law, including the justifications for punishment, the essential elements of offenses, mitigating and exculpating defenses, and different forms of criminal liability.


SPRG 2026: LAW JD 946 A1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Fri 12:00 pm 1:20 pm 4
Tue,Thu 2:30 pm 3:45 pm 4
SPRG 2026: LAW JD 946 B1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Fri 12:00 pm 1:20 pm 4
Tue,Thu 2:30 pm 3:50 pm 4
SPRG 2026: LAW JD 946 C1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Mon,Wed 2:10 pm 4:10 pm 4 Benjamin David Pyle
SPRG 2026: LAW JD 946 D1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Tue,Thu 2:10 pm 4:10 pm 4 Emmanuel Hiram Arnaud
SPRG 2026: LAW JD 946 E1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Tue,Thu 2:10 pm 4:10 pm 4 Karen Pita Loor
LAW JD 820

Criminal Procedure B: Adjudication

3 credits

Criminal Procedure is divided into two parts: investigation and adjudication. Students may take separate courses in investigation and adjudication or may take a one-semester course that covers both, although less intensively. Criminal Procedure A and B each stand on their own and may be taken in either order. One may be taken without the other. Criminal Procedure B focuses on adjudication, that is, focuses on the constitutional rules of the criminal process from arrest to sentencing and appeal ("bail to jail"), particularly under the Fifth, Sixth, and Eighth Amendments. Topics include the right to counsel, effective assistance of counsel, pretrial release and detention, charging, grand jury, prosecutorial discretion, discovery, double jeopardy, plea bargaining, jury vs. bench trial, jury selection, speedy trial, confrontation, jury instructions, proof beyond a reasonable doubt, sentencing, and appeals. RESTRICTION: Students may not enroll in this section and Criminal Procedure AB.


SPRG 2026: LAW JD 820 A1, Jan 12th to Apr 22nd 2026
Days Start End Credits Instructors Bldg Room
Tue,Thu 11:00 am 12:25 pm 3 Gerald F. Leonard