instance, a score of 1.00 indicates that the particular NSA has a rate of category A non-victim
crime that equals the city rate.
Sources: Chesapeake Police Department, 2012.
U.S. Census Bureau, 2010 Census.
Category B Crime Index
- The rate of category B crime in each NSA as compared with the rate
of category B crime in the City of Chesapeake.
The street block locations of category B crime offenses in 2012 were address-matched using
GIS. For the purposes of this study, category B crimes encompass all crimes that are not category
A offenses. These crimes include but are not limited to disorderly conduct, driving under the
influence and trespassing.
The population of each NSA and the City of Chesapeake was calculated from census block
group statistics. The number of category B crime incidents for each NSA was divided by the
population of each NSA to get the rate of category B crime. The total number of category B
crime incidents for the City of Chesapeake was divided by the population of Chesapeake to get
the citywide rate of category B crime. The rate of category B crime per population for each NSA
was then compared to the rate of category B crime per population for the city.
The Location Quotient method was used for the comparison. The results indicate the share of all
category B crime in the City of Chesapeake captured by the individual NSA. For instance, a
score of 1.00 indicates that the particular NSA has a rate of category B crime that equals the city
rate.
Sources: Chesapeake Police Department, 2012.
U.S. Census Bureau, 2010 Census.
November 2014
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