United States District Court
Northern District of California
Case5:15-xr-90304-HRL Document30 Filed07/29/15 Page21 of 46
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Fourth Amendment. In reaching its decision, the Florida Supreme Court explained that “because
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cell phones are indispensable to so many people and are normally carried on one’s person, cell
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phone tracking can easily invade the right to privacy in one’s home or other private areas, a matter
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that the government cannot always anticipate and one which, when it occurs, is clearly a Fourth
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Amendment violation.” Tracey, 152 So. 3d at 524. Relying on Justice Sotomayor’s concurrence
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in Jones, the Florida Supreme Court found that “owners of cell phones or cars equipped with GPS
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capability do not contemplate that the devices will be used to enable covert surveillance of their
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movements.” Id. (citing Jones, 132 S. Ct. at 956 at n.* (Sotomayor, J., concurring)). On that
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basis, the Tracey Court held that the defendant “had a subjective expectation of privacy in the
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location signals transmitted solely to enable the private and personal use of his cell phone,” and
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that “such a subjective expectation of privacy of location as signaled by one’s cell phone—even
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on public roads—is an expectation of privacy that society is now prepared to recognize as
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objectively reasonable.” Id. at 525-26 (citing Katz, 389 U.S. at 360-61 (Harlan, J., concurring)).
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Six more states have legislated privacy protections for historical CSLI. Colorado, Maine,
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Minnesota, Montana, Tennessee, and Utah have passed statutes expressly requiring law
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enforcement to apply for a search warrant to obtain this data. See Colo. Rev. Stat. § 16-3-
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303.5(2); Me. Rev. Stat. tit. 16, § 648; Minn. Stat. §§ 626A.28(3)(d), 626A.42(2); Mont. Code
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Ann. § 46-5-110(1)(a); Tenn. Code Ann. § 39-13-610(b); Utah Code Ann. § 77-23c-102(1)(a). In
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Utah, for example, “a government entity may not obtain the location information . . . of an
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electronic device without a search warrant issued by a court upon probable cause,” subject to a
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handful of exceptions. Utah Code Ann. § 77-23c-102(1)(a). At least six additional states—
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Illinois, Indiana, Maryland, Virginia, Washington, and Wisconsin—have passed laws requiring
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police to obtain a search warrant to track a cell phone in real time. See 725 Ill. Comp. Stat.
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168/10; Ind. Code § 35-33-5-12; Md. Code Ann., Crim. Proc. § 1-203.1; Va. Code Ann. 19.2-
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56.2; Wash. Rev. Code 9.73.260; Wis. Stat. § 968.373(2). Indiana, for instance, generally bars
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government tracking of cell phones in real time unless law enforcement “has obtained an order
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Case No. 15-XR-90304-HRL-1(LHK)
ORDER AFFIRMING DENIAL OF APPLICATION FOR HISTORICAL CELL SITE LOCATION
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