Documentation: Crime Data 2010
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Publisher: Interuniversity Consortium for Political and Social Research (ICPSR)
Survey: Crime Data 2010
Document: Uniform Crime Reporting Program Data: County-Level Detailed Arrest and Offense Data, 2010
citation:
Social Explorer, United States Department of Justice. Office of Justice Programs. Federal Bureau of Investigation. Uniform Crime Reporting Program Data: County-Level Detailed Arrest and Offense Data, 2010. ICPSR33523-v1.
Uniform Crime Reporting Program Data: County-Level Detailed Arrest and Offense Data, 2010
Comparing "Crime in the United States 2010" To ICPSR 33523
"Crime in the United States 2010" is a publication prepared by the Federal Bureau of Investigation and provides estimations of national reported crime activity and arrest statistics from law enforcement agencies in the UCR Program. Users of this data collection prepared by ICPSR may not be able to match the statistics presented in "Crime in the United States 2010" due to several factors:

(1) The UCR staff continue to update agency records when additions or corrections are received by the UCR Program. The FBI statistics presented in "Crime in the United States 2010" are based on the data that the FBI has received prior to their established publication deadlines. The data used by ICPSR to prepare the data in ICPSR 33523 may contain additions or corrections to the data submitted to the FBI after their publication deadline for producing "Crime in the United States 2010."

(2) The new imputation algorithm that ICPSR implemented in 1994 approximates the estimation procedures that the FBI uses to adjust for incomplete or unreported data from individual law enforcement jurisdictions. Limited or no crime or arrest data were available for some states in 2010. For some tables in "Crime in the United States 2010" (for example, Section II, Table 2: Total Crime Counts in the United States, and Section IV, Table 29: Estimated Arrests), the FBI provided estimated crime counts and arrest totals for some of these states (see Appendix I -- Methodology for the FBI's estimation methods). The ICPSR algorithm estimates data for agencies reporting less than three months of data by calculating rates from agencies reporting 12 months of data located in the agency's geographic stratum within that state. Since data for these states were very limited or not present in the original data, estimates for the entire state could not be produced by ICPSR.

(3) Some tables in "Crime in the United States 2010" were prepared using data only from agencies submitting complete reports for the 12 months for 2010 prior to the publication deadline (for example, Section IV, Table 69: Arrests by State). For this ICPSR data collection, all law enforcement agency records present in the original FBI data were used in the aggregation to the county level. County records with a coverage indicator value of 100 contain only 12-month reporting agencies (see last paragraph of the Coverage Indicator section in the Introduction for possible exceptions). Agencies reporting 12 months of data within a county with a coverage indicator value less than 100 cannot be separately identified in this dataset aggregated at the county level.