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Survey of Inmates in Local Jails (SILJ)

Survey of Inmates in Local Jails (SILJ)

Conducted periodically, the survey provides information on individual characteristics of jail inmates, current offenses and detention status, characteristics of victims, criminal histories, family background, gun possession and use, prior drug and alcohol use and treatment, medical and mental health history and treatment, vocational programs and other services provided while in jails, as well as other personal characteristics. Data are collected through personal interviews with a...

Census of Jails (COJ)

The Census of Jails (COJ) is the Bureau of Justice Statistics’ primary data collection on local jails. From 1970 to 2024, the COJ was conducted every 5 to 6 years, collecting data from about 2,900 local jails and federal detention facilities to produce state- and national-level statistics on jail populations and facilities. The COJ provides detailed information on inmate characteristics—including sex, race, Hispanic origin, citizenship...