Bill Carson
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- Apr 19, 2016
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I don’t think LE can look at the phones of his relatives. They could ask, of course, but they (his family) would be unlikely to hand them over. There is no legal reason why they should, imo.
If they are able to do a "tower dump" and obtain the phone numbers of all cell phones that accessed a tower on a particular date, then they can compare those numbers to the cell phone number of a suspect's known family, friends, and associates, and then if they see matches that look suspicious, then they could probably obtain a warrant to perform a more intrusive search.