Geofencing allows the government to draw a virtual fence around a geographic area where a crime was committed. After that, the government seeks a warrant not to search a home or office, but to require a tech company to search its data to identify any of its millions of users who were within the geofence line at the time of the crime.
As you know, Section 215 authorities are not interpreted in the same way that grand jury subpoena authorities are, and we are concerned that when Justice Department officials suggest that the two authorities are 'analogous' they provide the public with a false understanding of how surveillance is interpreted in practice.
If you are a lawyer, are interested in being an AUSA, and support President Trump and anti-crime agenda, DM me. We need good prosecutors. And DOJ is hiring across the country. Now is your chance to join the mission and do good for our country.- Chad Mizelle (@chad_mizelle) January 31, 2026
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