Adam Foss’s experience as an Assistant District Attorney (ADA) in Boston convinced him that prosecutors are the most influential actors in the criminal justice system. One ADA’s discretion and decisions can make the difference between a young person being charged with multiple felonies and beginning their adulthood in prison, or being diverted from the system without a criminal record and giving them second chance. By providing ADAs with the training and resources to approach their jobs with compassion, knowledge and creativity, he believes he can make a substantial impact on thousands, if not millions, of lives. Foss founded Prosecutor Impact in 2016 and began to seek partners who would be willing to test a radical new way to prepare ADAs for work. PI’s model is very new, but grounded in experience and research and tested on a small scale in other cities. This proposal would support an unprecedented partnership in Philadelphia’s District Attorney’s office that will allow them to credibly test their eight-week program for incoming prosecutors.