These data are part of NACJD's Rapid Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed. This study is an evaluation of the "fast-track" program that was created to alleviate caseload pressures caused by a dramatic increase in immigration-related cases. This program allows a federal prosecutor to offer a below guideline sentence in exchange for a defendant's prompt guilty plea and a waiver of certain rights. Research questions addressed in the study included: (1) to what extent do fast-track programs impact the efficient processing of (primarily) immigration cases and (2) to what extent does prosecutorial discretion exercised in fast-track processing contribute to sentencing disparity.