Justin Randolph specializes in nineteenth- and twentieth-century U.S. social and political history. His primary research concerns the intersection of policing and inequality in the American South. His first book, Mississippi Law: The Crisis of Policing and Reform in America's Jim Crow Countryside is under contract with the University of North Carolina Press. There, Randolph chronicles Black resistance to white supremacist policing and the rise of paramilitary police reform in rural Mississippi between the dawn of Jim Crow and the onset of mass incarceration. Randolph's writing has appeared in scholarly outlets like the American Historical Review, the Journal of Southern History, Southern Cultures, and the Oral History Review. He has also written for popular outlets such as the Washington Post, The Mississippi Encyclopedia, and the Mississippi Center for Investigative Reporting. He has received an American Council of Learned Societies (ACLS) Fellowship and prizes from both the Southern Historical Association and Agricultural History Society.