Events create a lot of social media chatter. Within this chatter or noise, the Investigator must find useful data. If the origin of the investigation is an event at a particular location, then searching for chatter that is related to the location may move the investigation forward.
GeoTagging is the process of adding geographical identification metadata to social media messages and other content such as images. Searching by the location usually entails entering the Latitude and Longitude of the location.
Twitter Geotags
Twitter allows users to include geotags with their tweets. Some third-party developers are using this feature. For example, Twellowhood, Twitter Local, and Twitter Nano.
Twitter Nano
Twitter Nano allows me to improve the signal-to-noise ratio when the starting point is an event or situation that I can identify with Latitude and Longitude. This will allow the Investigator to identify the people who have an interest or involvement in the event under investigation.
Of course, this doesn’t work if the user-of-interest hasn’t enabled geotagging. However, those with geotagging enabled often identify others who don’t have it enabled.