The Harvard T.H. Chan School of Public Health and the Pardee School at Boston University have been awarded a grant from the National Institute of Justice to study the design and implementation of reintegration programs through the use of a developmental evaluation approach. The goals of this study will be accomplished through four tasks: 1) Conduct a national level analysis of stakeholders and establish a stakeholders engagement strategy for the design and evaluation of reintegration programs; 2) Conduct a systematic review of existing reintegration programs (including gang and general-offender reintegration programs) to generate a list of essential services to allow researchers to identify resources and activities commonly employed in such programs; 3) Reach consensus on essential services of reintegration programs specific to terrorism-related cases; and 4) Conduct an evaluability assessment and a preliminary outcome evaluation of the newly designed reintegration programs on the health and behaviors of a group of released prisoners.