11. How is Data Checked Over Time?
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To ensure that crime statistics are reliable for comparisons, the FBI subjects UCR data to rigorous quality checks and periodic audits. The Criminal Justice Information Services Division employs auditors who conduct Quality Assurance Reviews of contributing agencies to verify compliance. Additionally, the FBI publishes preliminary reports that show the percentage change in crime from previous reporting periods. These continuous reviews and comparative reports help maintain the accuracy and reasonableness of the data over time.
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