This data collection provides comprehensive criminal history data on prisoners released from custody in 1983. Precise estimates are supplied on recidivism among prisoners of all ages with all types of postrelease supervision. Data cover recidivism both within and outside the states in which the prisoners were released. Variables include sociodemographic indices, type of sentence, length of sentence, offense, court action, and date of court action.

These data were gathered to investigate the usefulness of statistical methods, particularly multiple-regression analysis, in predicting repeat criminal activity subsequent to an individual's release from prison. The data collection consists of follow-up information, collected in 1988, on a sample of males released from California prisons. The follow-up study identified criminal activity subsequent to individuals' release from prison through 1988. Predictor variables include age, prior periods of arrest, history of drug use, seriousness of original offense, and number of arrests for nuisance, person, property, and fraud offenses.

National Prisoner Statistics (NPS) on inmates under the jurisdiction of both federal and state correctional authorities.

In order to assess the impacts of state-level sentencing and corrections policies in the United States implemented between 1975 and 2002 on state incarceration rates during that same time period, researchers conducted a two-phase study between November 2002 and March 2004. The first phase of the research involved building a framework for understanding the types of state-level sentencing and corrections policies in use between 1975 and 2002. Phase two of the project consisted of state-level data collection for all 50 states for all study years, 1975 to 2002. The researchers produced a dataset containing outcome variables that focus on the change and growth in state incarceration rates, non-policy control variables that were found in previous studies to be associated with changes in incarceration rates, and policy variables regarding sentencing structure, drug policy, time served requirements, habitual offender laws (HOL), and mandatory sentences.

This data collection provides an overview of how probation cases are processed in 32 urban and suburban jurisdictions in the United States and gauges the extent to which variations in probation patterns exist between jurisdictions. Data were collected on offenders who were sentenced in 1986 and who committed one or more of the following types of offenses: homicide, rape, robbery, aggravated assault, burglary, larceny, drug trafficking, and other felony crimes. Probation history questionnaires were completed during the last half of 1989. Information is available on number of conviction charges, race, age, sex, marital status, educational level, and ethnicity of the probationer. In addition, data on drug and alcohol use and treatment, sentencing, restitution, and offenses are provided.