Most GIS tools (like QGIS or ArcGIS) require you to define schemas, set coordinate reference systems (CRS), and manage project files before you see a single dot on a map.

: The FBI's CAST Basic Cell Site Analysis Course is offered at no cost to law enforcement and provides hands-on instruction on reading CDRs and using CASTViz.

: By significantly reducing the time required to manualy plot cell sites, it allows teams to generate leads and present findings in a clear, interactive way. Standardized Compliance