Cell phones are a ubiquitous part of our modern life. It’s easy to forget that they are constantly tapping into the wireless networks around us several times a minute, even when we’re not using them. Each time a cell phone connects to a cell tower or cell site, it generates a time-stamped record known as

We previously reported that government access to cellphone geographic information or CSLI without a warrant has become a vigorous debate between the government, defense attorneys, and the federal bench. In a lengthy opinion, Judge Lucy Koh of the Northern District of California joined those who held that the Fourth Amendment applies to CSLI. Prior to