ESRI's ArcView GIS (Geographic Information System), the world's most popular desktop mapping and GIS software, is a powerful tool for the management, display, query, and analysis of spatial information. ArcView GIS links traditional data analysis tools, such as spreadsheets, geographically with ArcView GIS, enabling the user to uncover new patterns and gain new insights into crime and other community issues. ArcView Spatial Analyst brings sophisticated raster and vector data analysis to the desktop. It seamlessly integrates raster-based spatial analysis with ArcView GIS software's vector-based mapping and analysis. The ArcView 3D Analyst extension enables users to create, analyze, and display surface data. ArcView Network Analyst enables ArcView GIS users to solve a variety of problems by using geographic networks, such as finding the most efficient travel route, generating travel directions, finding the closest facility, or defining service areas based on travel time. ArcView Image Analysis brings geographic imaging capabilities to ArcView GIS, and ArcView StreetMap 2000 is an optional extension that supports nationwide address matching and street map display. The ArcView Internet Map Server extension is a solution for publishing dynamic maps on the Internet by using ArcView GIS. ArcPress is an optional extension that extends the user's ability to print high-quality maps. ESRI's Spatial Database Engine is software that allows the user to store, manage, and quickly retrieve spatial data from leading commercial database management systems. ArcIMS Version 3.0 sets the standard for fast and powerful Internet mapping and GIS tools. 4 figures