← All EvidenceCrossChad Fitzgerald — Cross-Examination Chad Fitzgerald Miriam Conrad
Digital Evidence
Phone extraction identified by Conrad as coming from Tamerlan's phone
Conrad displayed a forensic extraction she identified as coming from Tamerlan's phone, contrasting its eight- and 18-second entries with network-record entries of 19 and 30 seconds. Fitzgerald agreed that the extraction listed 18 seconds for the April 15, 2013 call at 2:51, but could not explain how its software measured duration. He said the extraction was not used for his maps, although its contacts might have been used.
About
Conrad used the extraction to test whether network-record durations established actual conversation length, but Fitzgerald did not determine whether the different timings were inconsistent or what interval the extraction measured.