Why are data so difficult to compare over years?
Caution must be used when using trend data, as definitions and reporting capabilities change over ti... Read More
Why are there so many different counts for those under correctional supervision?
As with any specialized field, criminal justice has specific terms to convey specific ideas. Persons... Read More
Where can I locate state-specific data on prison populations?
The Prisoners bulletin series provide state-level data on prisoners under the jurisdiction of s... Read More
What is the difference between jails and prisons?
Jails are locally operated short-term facilities that hold inmates awaiting trial or sentencing or b... Read More
Why do data take so long to collect and publish?
Data collections vary in scope, burden, and frequency of collection - (see individual data collectio... Read More
What is the difference between probation and parole?
Probation refers to adult offenders whom courts place on supervision in the community through a prob... Read More
Where can I find the data collections that are archived for public use?
Not all datasets are available for public use. We are actively working on mechanisms to ma... Read More
What is prison?
Compared to jail facilities, prisons are longer-term facilities owned by a state or by the federal g... Read More
Bureau of Justice Statistics