For the American criminal justice system, 1975 was a watershed year. Offender rehabilitation and individualized sentencing fell from favor. The partisan politics of "law and order" took over. Among the results four decades later are the world's harshest punishments and highest imprisonment rate. Policymakers' interest in what science could tell them plummeted just when scientific work on crime, recidivism, and the justice system began to blossom. Some policy areas such as sentencing, gun violence, drugs, youth violence, became evidence-free zones. In others, developmental crime prevention, policing, recidivism studies, evidence mattered. This volume tells how policy and knowledge did and did not interact over time, considers contemporary problems, and charts prospects for the future. What accounts for the timing of particular issues and research advances? What did science learn or reveal about crime and justice, and how did that knowledge influence policy? Where are we now, and, perhaps even more important, where are we going? -- From book jacket.