gis analysis in public safety denise stuckey gis production manager the schneider corporation
TRANSCRIPT
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GIS ANALYSISIN
PUBLIC SAFETY
Denise Stuckey GIS Production Manager
The Schneider Corporation
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GIS Data
Sites layer Parcels Centerlines Neighborhood boundaries Corporate Limits Police Beats ESZ/ESN boundaries
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Types of Analysis with GIS
Hot Spot analysis Incident Mapping Buffering areas for evacuation Sex Offender Registry
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Hot Spot Analysis
Definition – areas of concentrated crime
The area has a greater than average number of criminal events or an area where people have a higher than average risk of victimization
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Crime Theories
Place Theories Street Theories Neighborhood Theories
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Hot Spots - Points
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Hot Spots - Linear
Repeat Streets Major thoroughfares face higher
crime risks than side streets Higher concentration of gas stations,
restaurants, convenience stores, and retail businesses
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Hot Spots - Linear
Drug Dealers
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Hot Spots - Polygons
Gradient maps – imply a continuous gradient of risk within a hot spot.
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Incident Mapping
Tracking Crime, accidents, incidents
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Buffering Areas
Evacuations
Crime Alert – automated call back system
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Evacuations
Chemical Spills Factory Fires
– Plume Modeling
Natural Disasters
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Factory Fire
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Crime Alert
Amber Alert Suspect in the area
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Sex Offender Registries
Megan’s Law Web applications for citizens to find
sex offenders in their communities In-house maps for police to track and
verify location of sex offenders Pierce County, Washington
– 2,100 registered sex offenders and kidnappers
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Pierce County, WA
Citizen Website– Able to search ½ mile radius from
specified address to find registered sex offenders
– Output is a map and a detailed list of all sex offenders in the area
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Levels of Sex Offenders
Three Levels Level 3 – most like to repeat crime Displays a picture, address and list of
past crimes of the individual
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Geographic Map
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Sex Offender Report
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Sex Offender Registry
Public Use of website– Must be kept current– Police Dept updates map via the internet
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Sex Offender Registry
Maps – Updates coming due– Concentrations of sex offenders– Buffer areas where children are known to
be Indiana Law – Sex Offenders cannot live closer
than 1000 feet of a school property– Property line or house?
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Sex Offender Registry
Must be absolutely sure the right information is on the website
Must keep it up to date
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Conclusion
GIS can help manage Public Safety information
Determine hot spots Determine where concentration of
police forces need to be Determine evacuation routes Access to current Sex Offender
information