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Unformatted text preview: Self Report Data Clearance rate compares the number of rimes reported to the number of crimes solved by arrest or by other means On average 50% of all index crimes are reported to the police 26% of thefts 50% of burglaries 45% of rapes 57% of robberies Victims may not report crime State law definitions may be different than UCR definitions Systematic errors in reporting hierarchy rule Deliberate alteration Ignores a lot of criminal activity o Why crime went down in the 1990s Demographics baby boomers Drug market stabilization Unemployment decreased so more people working Improvements in criminal justice o The new UCR (NIBRS) Uses incident based not summary based reporting Expands data collected More victim offender data More circumstance Expands offense reporting 22 offenses Distinguish attempts Does not use hierarchy rule...
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This note was uploaded on 09/21/2008 for the course CJ 110 taught by Professor Maxwell during the Fall '08 term at Michigan State University.
- Fall '08