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Fourth Amendment Commons

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Articles 1 - 4 of 4

Full-Text Articles in Fourth Amendment

The Right To Quantitative Privacy, Danielle K. Citron, David Gray Nov 2013

The Right To Quantitative Privacy, Danielle K. Citron, David Gray

Faculty Scholarship

We are at the cusp of a historic shift in our conceptions of the Fourth Amendment driven by dramatic advances in surveillance technology. Governments and their private sector agents continue to invest billions of dollars in massive data-mining projects, advanced analytics, fusion centers, and aerial drones, all without serious consideration of the constitutional issues that these technologies raise. In United States v. Jones, the Supreme Court signaled an end to its silent acquiescence in this expanding surveillance state. In that case, five justices signed concurring opinions defending a revolutionary proposition: that citizens have Fourth Amendment interests in substantial quantities of …


A Shattered Looking Glass: The Pitfalls And Potential Of The Mosaic Theory Of Fourth Amendment Privacy, Danielle K. Citron, David Gray Apr 2013

A Shattered Looking Glass: The Pitfalls And Potential Of The Mosaic Theory Of Fourth Amendment Privacy, Danielle K. Citron, David Gray

Faculty Scholarship

On January 23, 2012, the Supreme Court issued a landmark non-decision in United States v. Jones. In that case, officers used a GPS-enabled device to track a suspect’s public movements for four weeks, amassing a considerable amount of data in the process. Although ultimately resolved on narrow grounds, five Justices joined concurring opinions in Jones expressing sympathy for some version of the “mosaic theory” of Fourth Amendment privacy. This theory holds that we maintain reasonable expectations of privacy in certain quantities of information even if we do not have such expectations in the constituent parts. This Article examines and explores …


The Fight To Frame Privacy, Woodrow Hartzog Jan 2013

The Fight To Frame Privacy, Woodrow Hartzog

Faculty Scholarship

The resolution of a debate often hinges on how the problem being debated is presented. In psychology and related disciplines, this method of issue presentation is known as framing. Framing theory holds that even small changes in the presentation of an issue or event can produce significant changes of opinion. Framing has become increasingly important in discussions about privacy and security. In his new book, "Nothing to Hide: The False Tradeoff Between Privacy and Security," Daniel Solove argues that if we continue to view privacy and security as diametrically opposed to each other, privacy will always lose. Solove argues that …


Maryland V. King: Terry V. Ohio Redux, Tracey Maclin Jan 2013

Maryland V. King: Terry V. Ohio Redux, Tracey Maclin

Faculty Scholarship

In Maryland v. King, the Supreme Court addressed whether forensic testing of DNA samples taken from persons arrested for violent felonies violated the Fourth Amendment. The purpose behind DNA testing laws is obvious: collecting and analyzing DNA samples advances the capacity of law enforcement to solve both "cold cases" and future crimes when the government has evidence of the perpetrator's DNA from the crime scene.

In a 5-4 decision, the Court, in an opinion by Justice Kennedy, upheld Maryland's DNA testing statute, and presumably the similar laws of twenty-seven other states and the federal government.

Although Justice Kennedy's opinion suggests …