Geographic Information

Geographic Information

Geographic Information System

In line with Margaret Leland Smith

about Geographic Information in the Encyclopedia of Law Enforcement:

At the most basic level, a geographic information system (GIS) is a collection of digital information about physical features and human activities or events that is linked to a spatial coordinate system and available for analysis. The information (or data) is typically stored in a database and referenced, or linked, by means of a geographic coordinate system of measurements. Selected elements are displayed in computer-generated maps as layers of information about a specific area. A geographic information system in use by a police department would include a database of specific information about crimes (there is more information about criminal law in the American Legal Encyclopedia and about crimes and criminals vocabulary) and arrests that is linked to spatial data for streets, buildings, and other geographic divisions (police beats and/or precincts) and is accessible to department staff through a computer software interface. As needed, various types of crime, or various areas of a community, may be displayed as maps.

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