The Bureau of Justice Statistics (BJS) collects administrative data from probation and parole agencies in the United States through the Annual Probation Survey and Annual Parole Survey. Data collected include the total number of adults on state and federal probation and parole on January 1 and December 31 of each year, the number of adults entering and exiting probation and parole supervision each year, and the characteristics of adults under the supervision of probation and parole agencies. Published data include both national- and state-level data. The surveys cover all 50 states, the federal system, and the District of Columbia. They began in 1980 and are conducted annually. Probation data are available from 1977 through BJS's National Probation Reports. Parole data are available from 1975 through BJS's Uniform Parole Reports.

Justice Counts envisions a more effective and efficient criminal justice system by providing policymakers with actionable data to make policy and budgetary decisions. Justice Counts helps agency leaders adopt the Justice Counts metrics, make the data available, and help policy makers use them. It has supported a broad coalition to reach consensus around a set of metrics for each part of the system, including state departments of correction. States will develop a plan to engage agencies and localities, organize their data in the Justice Counts tool, and engage decisionmakers to use the data.

The Virtual Academy Model Code Repository gives corrections analysts access to a variety of code templates written in the R statistical programming language to improve data analytic efficiency and accuracy. This repository includes code to help reduce time spent compiling reports, tables, and visualizations. Additionally, all templates encourage reproducibility to prevent data discrepancies and simplify common time-consuming tasks.