Over the last five years, New York City has made major strides in reducing incarceration while remaining the safest big city in the U.S. How do we continue to remake the public safety landscape and create the smallest, safest, and fairest justice system possible? As part of a conference sponsored by the Center for Court Innovation and the Mayor's Office of Criminal Justice, we asked justice system leaders and experts, "If you could make just one investment to improve criminal justice in New York City, what would it be?"