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The technique, known as a “Tower Dump,” allows law enforcement to request all call, text and data transmissions from any specific time period from a cell tower’s provider. Evidence from cellular devices plays a key role in data mining, an often overlooked use of digital evidence. By exporting information from multiple digital devices (such as call logs from multiple cellular phones or e-mails from computers) and importing that data into an analytical software package, investigators using data-mining techniques can diagram and visualize a criminal enterprise or a timeline of events. This graphical representation can make it easier for investigators to understand the complex relationships in a criminal enterprise or for a jury to understand criminal activity and the possible connections among offenders in a courtroom presentation.

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