Dr. Hung-En Sung joined the John Jay College of Criminal Justice in 2006. He specializes in substance abuse, offender rehabilitation, correctional health, and comparative analysis of crime and justice. In the area of substance abuse policy, his current work focuses on the treatment of chronic offenders with co-occurring disorders, the therapeutic mechanisms of faith-based recovery interventions, and racial disparities in the processing of DWI cases. Using national datasets and records from local agencies, Professor Sung is assessing the effect of morbidity and healthcare needs on recidivism among offenders under institutional or community supervision. He is also examining, prospectively, the desistance-recidivism pathways of violent juvenile delinquents released from Rikers Island, New York City. His cross-national research has revolved around the impact of democratization on crime, corruption, and criminal justice operations. Prior to his appointment at John Jay College, Professor Sung served as a research associate in the Division of Policy Research and Analysis at the National Center on Addiction and Substance Abuse at Columbia University (2001-2006) and as a research analyst at the Kings County (Brooklyn) District Attorney's Office (1996-2001). He has published extensively and has been invited to share his work in Asia, Latin America and the United Nations.