National Corrections Reporting Program, 2000-2011

The National Corrections Reporting Program (NCRP) compiles offender-level data on admissions and releases from state and federal prisons and post-confinement community supervision. The data are used to monitor the nation's correctional population and address specific policy questions related to recidivism, prisoner reentry, and trends in demographic characteristics of the incarcerated and community supervision populations. The Bureau of Justice Statistics (BJS) has administered the NCRP since 1983. The United States Bureau of the Census served as data collection agent for BJS until October 2010, when Abt Associates assumed this position. From 2000 to 2009, NCRP data were archived each year in four, year-specific files that corresponded to the four files that states were asked to submit to the Census Bureau. The four files are: Prison Admissions (Part A), Prison Releases (Part B), Parole Exits (Part C), and Prison Custody (Part D). For example, the 2009 NCRP archive consists of prison admissions occurring in 2009, prison releases occurring in 2009, parole exits occurring in 2009, and prisoners in custody on December 31, 2009. Starting in 2011, NCRP data will be archived in a single, multi-year Term Record file. A Term Record represents a single period of incarceration for an individual offender. Each year, the archived Term Record file will be replaced by a new Term Record file that incorporates new NCRP data collected and processed during the previous year, as well as updates to previously collected data. The Term Records were created from the Prison Admissions (Part A), Prison Releases (Part B), and Prison Custody (Part D) records submitted by states since 2000. With a few lines of computing code (included with the archive), an analyst can create a prison admission, release, or custody file from the Term Record file. In addition to the Term Record file, two additional files are being archived: (1) Prison Admissions (Part A), Prison Releases (Part B), and Prison Custody (Part D) records that were not used in building the Term Record file and (2) Part C (Parole Exit) records collected from January 1, 2011 to October 31, 2012.

国家矫正报告计划（NCRP）汇编了关于各州及联邦监狱的囚犯入院及释放的个体级数据，以及监禁后社区监督的数据。这些数据用于监控全国矫正人口，并针对复罪、囚犯重返社会以及被监禁者及社区监督人口人口统计学特征的趋势等具体政策问题提供答案。自1983年以来，司法统计局（BJS）一直负责管理NCRP。美国人口普查局自1983年起作为BJS的数据收集代理，直至2010年10月，Abt Associates接替此职位。从2000年至2009年，NCRP数据每年均以四个特定年份的文件归档，这四个文件与各州被要求提交给人口普查局的四个文件相对应。这四个文件包括：监狱入院（部分A）、监狱释放（部分B）、假释出狱（部分C）和监狱关押（部分D）。例如，2009年NCRP档案包括2009年的监狱入院记录、2009年的监狱释放记录、2009年的假释出狱记录以及在2009年12月31日被关押的囚犯。自2011年起，NCRP数据将归档于一个单一的多年期限记录文件中。期限记录代表一个个体囚犯的单一监禁周期。每年，归档的期限记录文件将被新的期限记录文件所替代，该文件纳入了前一年收集和处理的新NCRP数据，以及之前收集数据的更新。期限记录是根据自2000年以来各州提交的监狱入院（部分A）、监狱释放（部分B）和监狱关押（部分D）记录创建的。借助一些计算代码（包含在档案中），分析师可以从期限记录文件中创建监狱入院、释放或关押文件。除了期限记录文件外，还将归档两个额外的文件：(1) 未用于构建期限记录文件的监狱入院（部分A）、监狱释放（部分B）和监狱关押（部分D）记录，以及(2) 自2011年1月1日至2012年10月31日收集的部分C（假释出狱）记录。