When facing the alarming recidivism rate for prisoners who have served their time, many policymakers shrug their shoulders or politely avert their gazes. But for Judge Ann Aiken, the rate of re-incarceration is data, and it is alarming – a large number of those inmates are in prison for parole violations, many involving drugs. Judge Aiken has worked with her fellow Fastcase 50 classmate Dan Lear (see below) on apps to help those on supervised release stay on the right side of the law. She has suggested apps, dashboards, and Fitbits for justice, wearables that help people find medical help, connect with probation officers, or find support by cell phone. Judge Aiken’s approach, equal parts technology and social science, promises to help understand, quantify, and lower the rate of recidivism.