Cell site analysis
Cell Site Analysis (CSA) is the technical discipline of using mobile telephony signals and network data to triangulate and identify the relative geographic position of a device.
Cell site analysis is considered a highly intrusive surveillance technique and as such normally deployed only in sensitive or serious criminal investigations.
The technique can assist in demonstrating the co-location (meeting) of individuals, their movements over time, proximity to a scene of crime, and to verify the any defence alibi evidence.