A Smithsonian Best History Book of the Year Winner of the Littleton-Griswold Prize Winner of the Ralph Waldo Emerson Award Winner of the Order of the Coif Award Winner of the Sidney M. Edelstein Prize Winner of the David J. Langum Sr. Prize in American Legal History Winner of the Berkshire Conference of Women Historians Book Prize “From traffic stops to parking tickets, Seo traces the history of cars alongside the history of crime and discovers that the two are inextricably linked.” ― Smithsonian When Americans think of freedom, they often picture the open road. Yet nowhere are we more likely to encounter the long arm of the law than in our cars. Sarah Seo reveals how the rise of the automobile led us to accept―and expect―pervasive police power, a radical transformation with far-reaching consequences. Before the twentieth century, most Americans rarely came into contact with police officers. But in a society dependent on cars, everyone―law-breaking and law-abiding alike―is subject to discretionary policing. Seo challenges prevailing interpretations of the Warren Court’s due process revolution and argues that the Supreme Court’s efforts to protect Americans did more to accommodate than limit police intervention. Policing the Open Road shows how the new procedures sanctioned discrimination by officers, and ultimately undermined the nation’s commitment to equal protection before the law. “With insights ranging from the joy of the open road to the indignities―and worse―of ‘driving while black,’ Sarah Seo makes the case that the ‘law of the car’ has eroded our rights to privacy and equal justice…Absorbing and so essential.” ―Paul Butler, author of Chokehold “A fascinating examination of how the automobile reconfigured American life, not just in terms of suburbanization and infrastructure but with regard to deeply ingrained notions of freedom and personal identity.” ―Hua Hsu, New Yorker “A fascinating examination of how the automobile reconfigured American life, not just in terms of suburbanization and infrastructure but with regard to deeply ingrained notions of freedom and personal identity…This is what makes Seo’s book so engrossing: it is filled with riveting, deeply researched accounts of interactions between drivers and cops back when the rules governing such incidents were still hazy. At times, it feels like an underground history―of closeted gay men testing the limits of privacy; of African-Americans, like Jack Johnson or Martin Luther King, Jr., simply trying to get from one place to another.” ― Hua Hsu , New Yorker “Remarkable…Seo’s idea is that the problem of policing cars, far from being a remote corner of the law, is central to how the jurisprudence of the Fourth Amendment (searches and seizures) took shape during the past hundred years.” ― Nathan Heller , New Yorker “From traffic stops to parking tickets, Seo traces the history of cars alongside the history of crime and discovers that the two are inextricably linked.” ― Smithsonian “Seo uses motor vehicle search and seizure cases to show how the rise of the automobile dramatically expanded the role of police in American society. But what began as simple traffic law enforcement evolved into a crime-control strategy that disproportionately targeted black motorists…An important revisionist history of the due process revolution.” ― Jackson Smith , Public Books “Among the book’s distinctly valuable contributions, readers learn of several of the ancestors of the better-publicized violent police stops of recent decades…An indispensable work of unique importance.” ― Peter Norton , Technology and Culture “How have we gone without this book for so long? Seo’s momentous Policing the Open Road is the revelatory story of how the automobile fueled a new kind of freedom while propelling new forms of police power. Things that seemed like standard features of the world in which we live―everything from the pervasiveness of law-breaking, to the ubiquity of the patrol car, to the reproduction of race and class on the highways―turn out in Seo’s brilliant legal history to arise out of the ambiguities of the automobile revolution. Reader-drivers beware: you’ll never speed the same way again.” ― John Fabian Witt, author of Lincoln’s Code “ Policing the Open Road is a highly readable account of how the automobile changed everything. With insights ranging from the joy of the open road to the indignities―and worse―of ‘driving while black,’ Sarah Seo makes the case that the 'law of the car’ has eroded our rights to privacy and equal justice. Careful scholarship is rarely so absorbing and so essential.” ― Paul Butler, author of Chokehold “At the heart of Sarah Seo’s Policing the Open Road stands a paradox: that even as the rise of the automobile promised unbridled freedom, it also subjected Americans to a level of policing previously unimaginable. With this sweeping, smart, and stimulating account, Seo has accomplished that most coveted