This visualization maps reported Chicago crime incidents, using colored points to reveal high-crime regions across the city. It shows the geographic distribution of offenses such as theft, battery, and assault. The map is built with D3 v5, using `d3.json` to load GeoJSON zip code boundaries and `d3.geoPath` with a Mercator projection to render them. Crime data with latitude and longitude coordinates from the CSV file is plotted onto the map, with a hover tooltip for additional context.