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GIS ANALYSIS IN PUBLIC SAFETY Denise Stuckey GIS Production Manager

GIS ANALYSIS IN PUBLIC SAFETY Denise Stuckey GIS Production Manager The Schneider Corporation. GIS Data. Sites layer Parcels Centerlines Neighborhood boundaries Corporate Limits Police Beats ESZ/ESN boundaries. Types of Analysis with GIS.

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GIS ANALYSIS IN PUBLIC SAFETY Denise Stuckey GIS Production Manager

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  1. GIS ANALYSIS IN PUBLIC SAFETY Denise Stuckey GIS Production Manager The Schneider Corporation

  2. GIS Data • Sites layer • Parcels • Centerlines • Neighborhood boundaries • Corporate Limits • Police Beats • ESZ/ESN boundaries

  3. Types of Analysis with GIS • Hot Spot analysis • Incident Mapping • Buffering areas for evacuation • Sex Offender Registry

  4. 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

  5. Crime Theories • Place Theories • Street Theories • Neighborhood Theories

  6. Hot Spots - Points

  7. 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

  8. Hot Spots - Linear • Drug Dealers

  9. Hot Spots - Polygons • Gradient maps – imply a continuous gradient of risk within a hot spot.

  10. Incident Mapping • Tracking Crime, accidents, incidents

  11. Buffering Areas • Evacuations • Crime Alert – automated call back system

  12. Evacuations • Chemical Spills • Factory Fires • Plume Modeling • Natural Disasters

  13. Factory Fire

  14. Crime Alert • Amber Alert • Suspect in the area

  15. 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

  16. 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

  17. 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

  18. Geographic Map

  19. Sex Offender Report

  20. Sex Offender Registry • Public Use of website • Must be kept current • Police Dept updates map via the internet

  21. 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?

  22. Sex Offender Registry • Must be absolutely sure the right information is on the website • Must keep it up to date

  23. 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

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