Prosecutors and defense attorneys now routinely obtain and analyze pre-crash cellphone call records for court. These Call Detail Records obtained from the cellphone companies provide call dates, times, durations and establish location. This session will provide an introduction to cellphone record analysis, location mapping, and demonstrate how this information may support a crash investigation and reconstruction. Robert Wyman will explain how to obtain and analyze Call Detail Records, organize the information for use in testimony, and share some of the limitations. You will learn about commercial software and online tools designed for analysis and location mapping and an automated way to create mapping exhibits.