Jacqueline E. Ross is Prentice H. Marshall Professor of Law at the University of Illinois College of Law, where she has taught since 2004. From 2001 to 2004, she was Professor at the John Marshall Law School in Chicago. From 1990 to 2000, she was Assistant US Attorney at the US Attorney's Office for the Northern District of Illinois, in Chicago. Before that she clerked for the Honorable Douglas H. Ginsburg on the US Court of Appeals for the D.C. Circuit, in Washington, D.C. She received her J.D. with honors from the University of Chicago Law School in 1989, and her Bachelor's of Arts degree, with honors, from the University of Chicago College, in 1984. She has published extensively in the field of comparative criminal procedure and comparative policing, including, most recently, Making Sense of Youth Crime: A Comparative Look at Police Intelligence Analysis in the United States and France, which was published with Cambridge University Press. She is Director of the Universityof Illinois Program in Comparative Criminal Procedure and Policing.

• Chapter 1. Introduction.- Chapter 2. Private activists’ undercover tactics and Vice Enforcement in Progressive Era America.- Chapter 3. The Irrelevance of Undercover Tactics to the French Conflict over Whether Prostitution Should be Regulated or Suppressed.- Chapter 4. American activists’ efforts to export their undercover tactics and their abolitionist agenda to the League of Nations.- Chapter 5. Conclusion.

Jacqueline E. Ross is Prentice H. Marshall Professor of Law at the University of Illinois College of Law, where she has taught since 2004. From 2001 to 2004, she was Professor at the John Marshall Law School in Chicago. From 1990 to 2000, she was Assistant US Attorney at the US Attorney's Office for the Northern District of Illinois, in Chicago. Before that she clerked for the Honorable Douglas H. Ginsburg on the US Court of Appeals for the D.C. Circuit, in Washington, D.C. She received her J.D. with honors from the University of Chicago Law School in 1989, and her Bachelor's of Arts degree, with honors, from the University of Chicago College, in 1984. She has published extensively in the field of comparative criminal procedure and comparative policing, including, most recently, Making Sense of Youth Crime: A Comparative Look at Police Intelligence Analysis in the United States and France, which was published with Cambridge University Press. She is Director of the Universityof Illinois Program in Comparative Criminal Procedure and Policing.

• Chapter 1. Introduction.- Chapter 2. Private activists’ undercover tactics and Vice Enforcement in Progressive Era America.- Chapter 3. The Irrelevance of Undercover Tactics to the French Conflict over Whether Prostitution Should be Regulated or Suppressed.- Chapter 4. American activists’ efforts to export their undercover tactics and their abolitionist agenda to the League of Nations.- Chapter 5. Conclusion.

Jacqueline E. Ross is Prentice H. Marshall Professor of Law at the University of Illinois College of Law, where she has taught since 2004. From 2001 to 2004, she was Professor at the John Marshall Law School in Chicago. From 1990 to 2000, she was Assistant US Attorney at the US Attorney's Office for the Northern District of Illinois, in Chicago. Before that she clerked for the Honorable Douglas H. Ginsburg on the US Court of Appeals for the D.C. Circuit, in Washington, D.C. She received her J.D. with honors from the University of Chicago Law School in 1989, and her Bachelor's of Arts degree, with honors, from the University of Chicago College, in 1984. She has published extensively in the field of comparative criminal procedure and comparative policing, including, most recently, Making Sense of Youth Crime: A Comparative Look at Police Intelligence Analysis in the United States and France, which was published with Cambridge University Press. She is Director of the Universityof Illinois Program in Comparative Criminal Procedure and Policing.

• Chapter 1. Introduction.- Chapter 2. Private activists’ undercover tactics and Vice Enforcement in Progressive Era America.- Chapter 3. The Irrelevance of Undercover Tactics to the French Conflict over Whether Prostitution Should be Regulated or Suppressed.- Chapter 4. American activists’ efforts to export their undercover tactics and their abolitionist agenda to the League of Nations.- Chapter 5. Conclusion.