In the 1990s, New York was considered a dangerous place. The crack epidemic was still in full swing, and the city was at the peak of a national crime wave. Twenty years later, everything’s changed. New York’s crime rate has dropped dramatically and so has the state’s rate of locking people up in prison. How did this transformation occur? KALW’s Rina Palta sat down with Berkeley Law Professor, Franklin Zimring, to talk about his new book, The City That Became Safe: New York’s Lessons for Urban Crime and its Control.