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14 Fed. Cts. L. Rev. 1 (2021-2022)

handle is hein.journals/fecourtl14 and id is 1 raw text is: THE FEDERAL COURTS LAW REVIEW*
Volume 14                                                          2021
THE CELL PHONE DONUT HOLE IN THE
TRACKING DEVICE STATUTE
Stephen Wm. Smith*
INTRODU    CTION  .................................................................  2
I.  BACKGROUND      .............................................................  7
A. ECPA Surveillance: Four Weddings and
a  F u n era l...................................................................... . . 7
1. Prospective Monitoring: Wiretaps, Pen Registers,
Trap & Trace, and Tracking ................................ 8
2. Retrospective Disclosure: Stored
Communications and Records ................................ 12
B. The Evolution of Tracking Devices in the Caselaw....... 15
1. Beepers in Knotts and Karo.................................... 15
2. GPS Cell Phone-Based Trackers in Jones............ 17
3. Cell Site Simulator in Rigmaiden......................... 20
4. Software in NIT Warrant Cases ............................ 21
C. The Brief History of Precise Location
Inform  ation W arrants............................................... 26
1. 2011  M aryland  Case  ............................................... 27
2. 2013  N ew  York  Case ............................................... 28
3. 2015  M ississippi Case............................................. 31
II. THE ACKJES DECISION .............................................. 32
t The Federal Courts Law Review is a publication of the Federal Magistrate Judges
Association. Editing support is provided by the members of the Mississippi Law Journal.
Retired United States Magistrate Judge, U.S. District Court, Southern District of Texas
(2004-18); Non-resident Fellow, Center for Internet and Society, Stanford Law School.
Special thanks to SLS student Haley Amster for invaluable research and editorial
assistance, and to Susan Freiwald, Al Gidari, James Orenstein, Brian Owsley, Stephanie
Pell, Riana Pfefferkorn, Gabriel Fuentes, and David Sanders for helpful comments on
earlier drafts.

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