Prosecutor-led diversion programs are growing in popularity in many jurisdictions across the country and offer a unique opportunity for prosecutors to address the impact prosecutorial decisions have in perpetuating mass incarceration and an opportunity to reduce local jail populations. Diversion programs can both hold people accused of wrong-doing accountable, while reducing the deleterious effects of incarceration. This case study, part of a series highlighting work supported by the Safety and Justice Challenge, examines how Milwaukee County, Wisconsin developed and implemented prosecutor-led diversion strategies to reduce the local jail population.