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California Sentencing Institute

In 2009, CJCJ developed the California Sentencing Institute as the foundation for data and research driven commentary on the broader public policy dialogue. The interactive map presents detailed crime and incarceration numbers, rates, and trends for California and each of its 58 counties. This resource is designed to provide comprehensive analysis of sentencing policies and practices across the state.

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Known Data Limitations and Adjustments

Last Updated November 22, 2013.

Each year, every county submits their data to the official statewide databases maintained by appointed governmental bodies. While every effort is made to review data for accuracy and to correct information upon revision, CJCJ cannot be responsible for data reporting errors made at the county, state, or national level. View definitions page for more information on the formula to calculate state confinement costs.

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PLEASE NOTE: Possible limitations with San Francisco adult arrest figures may distort San Francisco trends as they appear on the interactive map and downloadable spreadsheets. CJCJ is seeking further confirmation from SFPD on the reliability of San Francisco arrest data. 

2012

Adult:

  • San Francisco felony arrest figures adjusted using reported-offense arrest change, due to known underreporting by county.
  • San Francisco does not accurately tabulate Latino arrests. Figures adjusted by multiplying rates of arrest for each race statewide by the San Francisco populations by race, and then prorated by the total number of San Francisco felony arrests.
  • Statewide arrest totals are affected by adjusted San Francisco tabulations.
  • CJCJ uses the California Crime Index to calculate Part I Crimes Reported. This index excludes larceny of under $400 and arson.

Juvenile:

  • Juvenile probation data are unavailable for 2012. Therefore, 2011 data are used.
  • Direct file data for 2012 are unavailable.
  • Juvenile population uses intercensal estimates by the Department of Finance.
  • San Francisco arrest figures are adjusted by race using county juvenile probation reports.
  • Open mental health cases were not reported by Alameda, Del Norte, Orange, Sierra, or Tuolumne counties.

2011

Adult:

  • San Francisco felony arrest figures adjusted using reported-offense arrest change, due to known underreporting by county.
  • San Francisco does not accurately tabulate Latino arrests. Figures adjusted by multiplying rates of arrest for each race statewide by the San Francisco populations by race, and then prorated by the total number of San Francisco felony arrests.
  • Statewide arrest totals are affected by adjusted San Francisco tabulations.
  • CJCJ uses the California Crime Index to calculate Part I Crimes Reported. This index excludes larceny of under $400 and arson.

Juvenile:

  • Juvenile population uses intercensal estimates by the Department of Finance.
  • San Francisco arrest figures are adjusted by race using county juvenile probation reports.

2010

Adult:

  • San Francisco felony arrest figures adjusted using reported-offense arrest change, due to known underreporting by county.
  • San Francisco does not accurately tabulate Latino arrests. Figures adjusted by multiplying rates of arrest for each race statewide by the San Francisco populations by race, and then prorated by the total number of San Francisco felony arrests.
  • Statewide arrest totals are affected by adjusted San Francisco tabulations.
  • CJCJ uses the California Crime Index to calculate Part I Crimes Reported. This index excludes larceny of under $400 and arson.
  • The Holtville Police Department, Solano County Sheriff’s Department, and Calipatria Police Department did not provide complete arrest figures.

Juvenile:

  • Incarceration figures for Amador, Colusa, El Dorado, Placer, San Bernardino, Santa Cruz, Solano and Sutter counties are adjusted to reflect joint use of Fouts Springs Youth Facility.
  • San Francisco arrest figures are adjusted by race using county juvenile probation reports.
  • Ventura County direct file data is being revised. Del Norte and Sierra counties did not report direct files.
  • Juvenile population uses intercensal estimates by the Department of Finance.

2009

Adult:

  • San Francisco felony arrest figures adjusted using reported-offense arrest change, due to known underreporting by county.
  • San Francisco does not accurately tabulate Latino arrests. Figures adjusted by multiplying rates of arrest for each race statewide by the San Francisco populations by race, and then prorated by the total number of San Francisco felony arrests.
  • Statewide arrest totals are affected by adjusted San Francisco tabulations.
  • CJCJ uses the California Crime Index to calculate Part I Crimes Reported. This index excludes larceny of under $400 and arson.

Juvenile:

  • Incarceration figures for Amador, Colusa, El Dorado, Placer, San Bernardino, Santa Cruz, Solano and Sutter counties are adjusted to reflect joint use of Fouts Springs Youth Facility.
  • San Francisco arrest figures are adjusted by race using county juvenile probation reports.
  • Ventura County direct file data is being revised. Del Norte and Sierra counties did not report direct files.
  • Juvenile population uses intercensal estimates by the Department of Finance.
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