Justice System Data At-A-Glance

Justice System At-A-Glance is publicly available data that the Statistical Analysis Center (SAC) either retrieves from each contributing agency’s website or otherwise receives from the contributing agencies on a regular basis. This data provides a snapshot of activity at different phases of the criminal justice process, and the data is updated on the DC JSAT website at the same frequency that it is updated on the contributing agency’s website. Agencies that contribute to Justice System At-a-Glance Data (as of September 30, 2018) include: the Metropolitan Police Department (MPD), the Department of Youth Rehabilitation Services (DYRS), and the Department of Corrections (DOC). In addition, the SAC has incorporated information on the District’s adult population using estimates generated by the U.S. Census Bureau’s American Community Survey.

Interactive Data

Interactive Data is aggregate-level data provided by justice system agencies, or compiled by the Statistical Analysis Center, on an annual basis to illustrate annual and historical trends with respect to different phases of the District’s criminal and juvenile justice systems. The SAC initially began receiving this data from justice system agencies in [YEAR] for inclusion in its annual Public Safety and Justice Report . The SAC will now make this data and analysis available through interactive dashboards in DC JSAT. the Interactive Dashboards enable Users to filter the data by geographic, time, and demographic factors. Agencies that contribute to Interactive Data (as of September 30, 2018) include the: Department of Corrections (DOC), Department of Youth Rehabilitation Services (DYRS), District of Columbia Superior Court (DCSC), Federal Bureau of Prisons (FBOP), Metropolitan Police Department (MPD), and Pretrial Services Agency. In addition, the SAC has incorporated information on the District’s adult population using estimates generated by the U.S. Census Bureau’s American Community Survey.

Contributing Agencies

Department of Corrections (DOC)

The Department of Corrections (DOC) is a District government agency that operates facilities for the confinement of adult pretrial detainees and sentenced inmates. Those facilities include the Central Detention Facility (CDF), Correctional Treatment Facility (CTF), and halfway houses that are operated by private contractors. Data obtained from DOC for Justice System At-a-Glance includes: Average Daily Population for DOC facilities. The Average Daily Population is calculated by taking the average of the monthly population for the entire year. This information is updated on DCJSAT on a quarterly basis. Data provided by DOC for Interactive Data includes the number of admissions to and release from DOC facilities. DOC provides this data to the SAC on an annual basis.

Department of Youth Rehabilitation Services (DYRS)

This information includes statistics on youth development and public safety who are in DYRS custody. The DYRS population information includes counts for youth at facilities such as the Youth Services Center (YSC) and shelter homes. This information is updated weekly.

Federal Bureau of Prisons (FBOP)

BOP data includes information on inmate population admissions and releases, length of stay, transfers and demographics. This data is updated annually.

Pretrial Services Agency (PSA)

PSA information includes defendant population and demographic totals by calendar year. This information is updated annually.

Metropolitan Police Department (MPD)

Information from MPD includes reported crimes and arrest data. Reported crimes are updated weekly. Arrest data is updated annually and includes adult and juvenile arrest totals by year and arrest category.

Superior Court for District of Columbia (DCSC)

Court case activity (filings and dispositions) is included within DCSC information. This information is updated annually.

U.S. Census Bureau

The U.S. Census Bureau aims to serve as the leading provider of quality data about the nation’s people and economy. The Census Bureau has a number of data collection and reporting efforts, including the Decennial Census of Population and Housing, which is mandated by the U.S. Constitution in order to count every resident in the United States. The Census Bureau also conducts the American Community Survey (ASC), which is a national survey that produces 1-year and 5-year population estimates for small areas, referred to as census tracts or block groups. The ACS population data can be disaggregated by various demographic and economic factors, including Ward for the District of Columbia. The ACS population estimate for the District is provided in DC JSAT to offer context for the level of activity in the District’s criminal justice system vis-à-vis the District’s population.

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