But an insurance investigator, law enforcement agency or journalist can easily use QGIS in several ways for things like geolocation, or gain extra information on a specific area or situation. QGIS is a free tool used by people working in geographical information science, usually dealing with any kind of information related to geography, topology, cartography and such. In this article I'll show you how you can use QGIS to view aerial and satellite imagery by using publicly available datasets via Web Map Tile Service.