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Table 27 Data Declaration

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Percent of Offenses Cleared by Arrest or Exceptional Means, Additional Information About Selected Offenses by Population Group, 2012

The FBI collects these data through the Uniform Crime Reporting (UCR) Program.

General comments

  • This table provides offense breakdowns and the percentages of those crimes that were cleared by arrest or exceptional means for the following offenses:
    • Forcible rape (by force and assault to rape-attempts)
    • Robbery and aggravated assault (weapon used)
    • Burglary (forcible entry, unlawful entry, and attempted forcible entry)
    • Motor vehicle theft (vehicle type)
    • Arson (property type)
  • Agencies must report clearances for specific offense breakdowns on either the Return A or the Monthly Return of Arson Offenses Known to Law Enforcement to be included in this table. However, not all agencies submit these supplemental data to the FBI; therefore, clearance data in this table may differ from those in other clearance tables.
  • The number of agencies meeting the criteria for inclusion in this table and the 2012 estimated population for those agencies are provided by city population groups, county population groups, and suburban areas.
  • Suburban areas include law enforcement agencies in cities with less than 50,000 inhabitants and county law enforcement agencies that are within a Metropolitan Statistical Area.
  • Suburban areas exclude all metropolitan agencies associated with a principal city. The agencies associated with suburban areas also appear in other groups within this table.
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Methodology

  • The data used in creating this table were from all law enforcement agencies submitting at least 6 months of complete offense reports for 2012.
  • The FBI bases percent cleared statistics on aggregated offense and clearance totals. The percentage of crimes cleared by arrest is obtained first by dividing the number of offenses cleared by the number of offenses known and then multiplying the resulting figure by 100.

Population groups

The UCR Program uses the following population group designations:

Population Group

Political Label

Population Range

I

City

250,000 and more

II

City

100,000 to 249,999

III

City

50,000 to 99,999

IV

City

25,000 to 49,999

V

City

10,000 to 24,999

VI1, 2

City

Less than 10,000

VIII (Nonmetropolitan County)2

County

N/A

IX (Metropolitan County)2

County

N/A

1Includes universities and colleges to which no population is attributed.
2Includes state police to which no population is attributed.

Population estimation

The FBI calculated 2012 state growth rates using the U.S. Census Bureau’s 2011 and 2012 provisional state/national population estimates. The FBI then estimated population figures for city and county jurisdictions by applying the 2012 state growth rate to the updated 2011 U.S. Census Bureau data.