The SJIC collects information from all known operating confinement facilities, detention centers, and other correctional facilities (80 as of 2014) operated by tribal authorities or the Bureau of Indian Affairs (BIA).
The SJIC collects information pertaining to jail inmate population counts, movements,
and characteristics on the last weekday in the month of June each year.
Data are collected on the number of adults and juveniles held, gender of inmates, conviction status, seriousness of inmates offenses, number of admissions and releases during the month of June, number of inmate deaths, average daily population, peak population during the month of June, rated capacity of facility, crowding issues, and jail staffing and training.
Intermittently BJS also collects data, via an addendum to the core survey, on the physical conditions and operations of Indian country facilities.
The addendum requests information on inmate medical services, mental health services, suicide prevention procedures, substance dependency programs, domestic violence counseling, sex offender treatment, educational programs, and inmate work assignments.