Fourth Amendment Commons^™

Computationally Assessing Suspicion, Wesley M. Oliver

Law Faculty Publications

Law enforcement officers performing drug interdiction on interstate highways have to decide nearly every day whether there is reasonable suspicion to detain motorists until a trained dog can sniff for the presence of drugs. The officers’ assessments are often wrong, however, and lead to unnecessary detentions of innocent persons and the suppression of drugs found on guilty ones. We propose a computational method of evaluating suspicion in these encounters and offer experimental results from early efforts demonstrating its feasibility. With the assistance of large language and predictive machine learning models, it appears that judges, advocates, and even police officers could …

The Mosaic Theory In Fourth Amendment Jurisprudence: The Last Bastion Of Privacy In A Camera-Surveilled World, Auggie Alvarado

St. Mary's Law Journal

No abstract provided.

The Post-Dobbs Reality: Privacy Expectations For Period-Tracking Apps In Criminal Abortion Prosecutions, Sophie L. Nelson

Pepperdine Law Review

The Supreme Court’s decision to overturn Roe v. Wade and Planned Parenthood v. Casey in June 2022 was met with waves of both support and criticism throughout the United States. Several states immediately implemented or began drafting trigger laws that criminalize seeking and providing an abortion. These laws prompted several period-tracking app companies to encrypt their users’ data to make it more difficult for the government to access period- and pregnancy-related information for criminal investigations. This Comment explores whether the Fourth Amendment and U.S. privacy statutes protect users of period-tracking apps from government surveillance. More specifically, this Comment argues that …

Pretrial Commitment And The Fourth Amendment, Laurent Sacharoff

Notre Dame Law Review

Today, the Fourth Amendment Warrant Clause governs arrest warrants and search warrants only. But in the founding era, the Warrant Clause governed a third type of warrant: the “warrant of commitment.” Judges issued these warrants to jail defendants pending trial. This Article argues that the Fourth Amendment Warrant Clause, with its oath and probable cause standard, should be understood today to apply to this third type of warrant. That means the Warrant Clause would govern any initial appearance where a judge first commits a defendant—a process that currently falls far short of fulfilling its constitutional and historical function. History supports …

The Unconstitutional Conditions Vacuum In Criminal Procedure, Kay L. Levine, Jonathan R. Nash, Robert A. Schapiro

Faculty Articles

For more than a century, the Supreme Court has applied the unconstitutional conditions doctrine in many contexts, scrutinizing government efforts to condition the tradeoff of rights for benefits with regard to speech, funding, and takings, among others. The Court has declined, however, to invoke the doctrine in the area of criminal procedure, where people accused of crime are often asked to—and often do—surrender their constitutional rights under the Fourth, Fifth, and Sixth Amendments in return for some benefit. Despite its insistence that the unconstitutional conditions doctrine applies broadly across the Bill of Rights, the Court’s jurisprudence demonstrates that the doctrine …

Private Police Regulation And The Exclusionary Remedy: How Washington Can Eliminate The Public/Private Distinction, Jared Rothenberg

Washington Law Review

Private security forces such as campus police, security guards, loss prevention officers, and the like are not state actors covered by the Fourth Amendment’s prohibition against unreasonable searches and seizures nor the Fifth Amendment’s Miranda protections. As members of the umbrella category of “private police,” these private law enforcement agents often obtain evidence, detain individuals, and elicit confessions in a manner that government actors cannot, which can then be lawfully turned over to the government. Though the same statutory law governing private citizens (assault, false imprisonment, trespass, etc.) also regulates private police conduct, private police conduct is not bound by …

Reasonable In Time, Unreasonable In Scope: Maximizing Fourth Amendment Protections Under Rodriguez V. United States, Thomas Heiden

Washington Law Review

In Rodriguez v. United States, the Supreme Court held that a law enforcement officer may not conduct a drug dog sniff after the completion of a routine traffic stop because doing so extends the stop without reasonable suspicion in violation of the Fourth Amendment’s prohibition on unreasonable seizures. Tracing the background of Rodriguez from the Supreme Court’s landmark decision in Terry v. Ohio, this Comment argues that Rodriguez is best understood as a reaction to the continued erosion of Fourth Amendment protections in the investigative stop context. Based on that understanding, this Comment argues for a strict reading of Rodriguez, …

Per Curiam Signals In The Supreme Court's Shadow Docket, Zina Makar

Washington Law Review

Lower courts and litigants depend a great deal on the Supreme Court to articulate and communicate signals regarding how to interpret existing doctrine. Signals are at their strongest and most reliable when they originate from the Court’s merits docket. More recently, the Court has been increasingly relying on its orders docket—colloquially referred to as its “shadow docket”—to communicate with lower courts by summarily reversing and correcting errors in interpretation without briefing or oral argument.

Over the past decade the Roberts Court has granted certiorari to summarily reverse a growing number of qualified immunity cases, issuing over a dozen unsigned per …

Privacy And Property: Constitutional Concerns Of Dna Dragnet Testing, E. Wyatt Jones

Honors Projects

DNA dragnets have attracted both public and scholarly criticisms that have yet to be resolved by the Courts. This review will introduce a modern understanding of DNA analysis, a complete introduction to past and present Fourth and Fourteenth Amendment jurisprudence, and existing suggestions concerning similar issues in legal scholarship. Considering these contexts, this review concludes that a focus on privacy and property at once, with a particular sensitivity to the inseverable relationship between the two interests, is Constitutionally consistent with precedent and the most workable means of answering the question at hand.

Gone Fishing: Casting A Wide Net Using Geofence Warrants, Ryan Tursi

Washington Law Review

Technology companies across the country receive requests from law enforcement agencies for cell phone location information near the scenes of crimes. These requests rely on the traditional warrant process and are known as geofence warrants, or reverse location search warrants. By obtaining location information, law enforcement can identify potential suspects or persons of interest who were near the scene of a crime when they have no leads. But the use of this investigative technique is controversial, as it threatens to intrude upon the privacy of innocent bystanders who had the misfortune of being nearby when the crime took place. Innocent …

On Warrants & Waiting: Electronic Warrants & The Fourth Amendment, Tracy Hresko Pearl

Indiana Law Journal

Police use of electronic warrant (“e-warrant”) technology has increased significantly in recent years. E-warrant technology allows law enforcement to submit, and magistrate judges to review and approve, warrant applications on computers, smartphones, and tablets, often without any direct communication. Police officers report that they favor e-warrants over their traditional, paper counterparts because they save officers a significant amount of time in applying for warrants by eliminating the need to appear in-person before a magistrate. Legal scholars have almost uniformly praised e-warrant technology as well, arguing that use of these systems will increase the number of warrants issued throughout the United …

The Fourth Amendment's Constitutional Home, Gerald S. Dickinson

Articles

The home enjoys omnipresent status in American constitutional law. The Bill of Rights, peculiarly, has served as the central refuge for special protections to the home. This constitutional sanctuary has elicited an intriguing textual and doctrinal puzzle. A distinct thread has emerged that runs through the first five amendments delineating the home as a zone where rights emanating from speech, smut, gods, guns, soldiers, searches, sex, and self-incrimination enjoy special protections. However, the thread inexplicably unravels upon arriving at takings. There, the constitutional text omits and the Supreme Court’s doctrine excludes a special zone of safeguards to the home. This …

Scanning Iphones To Save Children: Apple’S On-Device Hashing Algorithm Should Survive A Fourth Amendment Challenge, Timothy Gernand

Dickinson Law Review (2017-Present)

When Apple announced it would combat the growth of child sexual abuse material (CSAM) on its platform by scanning all its users’ devices without their consent, many of its loyal customers felt betrayed. With tech companies such as Google and Facebook arranging their business models around selling their customers’ personal information, Apple customers saw the company’s focus on privacy as a refreshing alternative. However, as Apple itself privately acknowledged, this emphasis on privacy had led to it becoming a haven for CSAM. Despite the reputational damage it would incur with its customers, Apple resolved to confront CSAM on its platform …

The Fourth Amendment And The Problem Of Social Cost, Thomas P. Crocker

Northwestern University Law Review

The Supreme Court has made social cost a core concept relevant to the calculation of Fourth Amendment remedies but has never explained the concept’s meaning. The Court limits the availability of both the exclusionary rule and civil damages because of their “substantial social costs.” According to the Court, these costs primarily consist of letting the lawbreaker go free by excluding evidence or deterring effective police practices that would lead to more criminal apprehension and prosecution. But recent calls for systemic police reform by social movements have a different view of social cost. So too do calls for reforming qualified immunity. …

Rewriting Whren V. United States, Jonathan Feingold, Devon Carbado

Faculty Scholarship

In 1996, the U.S. Supreme Court decided Whren v. United States—a unanimous opinion in which the Court effectively constitutionalized racial profiling. Despite its enduring consequences, Whren remains good law today. This Article rewrites the opinion. We do so, in part, to demonstrate how one might incorporate racial justice concerns into Fourth Amendment jurisprudence, a body of law that has long elided and marginalized the racialized dimensions of policing. A separate aim is to reveal the “false necessity” of the Whren outcome. The fact that Whren was unanimous, and that even progressive Justices signed on, might lead one to conclude that …

A Solution For The Third-Party Doctrine In A Time Of Data Sharing, Contact Tracing, And Mass Surveillance, Tonja Jacobi, Dustin Stonecipher

Notre Dame Law Review

Today, information is shared almost constantly. People share their DNA to track their ancestry or for individualized health information; they instruct Alexa to purchase products or provide directions; and, now more than ever, they use videoconferencing technology in their homes. According to the third-party doctrine, the government can access all such information without a warrant or without infringing on Fourth Amendment privacy protections. This exposure of vast amounts of highly personal data to government intrusion is permissible because the Supreme Court has interpreted the third-party doctrine as a per se rule. However, that interpretation rests on an improper understanding of …

The Problem Of Qualified Immunity In K-12 Schools, Sarah Smith

Arkansas Law Review

When thirteen-year-old Savana Redding arrived at school one autumn day in 2003, she was not expecting to be pulled out of her math class and strip searched. But, that is exactly what happened after the assistant principal suspected her of possessing and distributing “prescription-strength ibuprofen” and “over-the-counter. . .naproxen” after receiving information from another student. After Savana consented to a search of her backpack and other belongings—a search which turned up no evidence of drug possession—the assistant principal asked the school nurse and administrative assistant to search Savana’s clothes. To do this, the school officials asked Savana “to remove her …

Tech And Authoritarianism: How The People’S Republic Of China Is Using Data To Control Hong Kong And Why The U.S. Is Vulnerable, Bryce Neary

Seattle Journal of Technology, Environmental & Innovation Law

The aim of this article is to analyze and compare current events in the People's Republic of China and the United States to discuss the moral dilemmas that arise when establishing the boundary between national security interests and individual privacy rights. As we continue to intertwine our lives with technology, it has become increasingly important to establish clear privacy rights. The question then becomes: at what point should individuals sacrifice their rights for what the government considers the "greater good" of the country?

Further, this article analyzes the development of U.S. privacy law and its relationship to national security, technology, …

Fourth Amendment Privacy In Public: A Fundamental Theory With Application To Location Tracking, Jordan Wallace-Wolf

Faculty Scholarship

When we walk out our front door, we are in public and other people may look at us. But intuitively, we don’t open ourselves up to unlimited scrutiny just by going outside. We retain some privacy, even in public. What is the source of this residual public-privacy, and how should the law recognize it without degrading the open character of public space?

The answer given by commentators, and most recently by the Supreme Court in Carpenter v. U.S., comes in the form of two related claims. The first is the chilling theory of the Fourth Amendment. According to this idea, …

Escaping Circularity: The Fourth Amendment And Property Law, João Marinotti

Articles by Maurer Faculty

The Supreme Court’s “reasonable expectation of privacy” test under the Fourth Amendment has often been criticized as circular, and hence subjective and unpredictable. The Court is presumed to base its decisions on society’s expectations of privacy, while society’s expectations of privacy are themselves presumed to be based on the Court’s judgements. As a solution to this problem, property law has been repeatedly propounded as an allegedly independent, autonomous area of law from which the Supreme Court can glean reasonable expectations of privacy without falling back into tautological reasoning.

Such an approach presupposes that property law is not itself circular. If …

A New Report Of Entick V. Carrington (1765), Christian Burset, T. T. Arvind

Journal Articles

The Supreme Court has described Entick v. Carrington (1765) as “the true and ultimate expression of constitutional law” for the Founding generation. For more than 250 years, judges and commentators have read that case for guidance about the rule of law, executive authority, and the original meaning of the Fourth and Fifth Amendments. But we have been reading a flawed version. This Article publishes, for the first time, a previously unknown manuscript report of Entick v. Carrington. We explain why this version is more reliable than other reports of the case, and how this new discovery challenges prevailing assumptions about …

Restoring Causality In Attenuation: Establishing The Breadth Of A Fourth Amendment Violation, Bryan H. Ward

West Virginia Law Review

When the police violate a suspect’s Fourth Amendment rights, what often follows is the discovery of incriminating evidence. Sometimes the evidence is discovered directly after the Fourth Amendment violation. In other situations, the evidence comes by a more indirect route and may occur long after the original Fourth Amendment violation. Courts struggle when trying to decide if the discovery of this indirectly obtained evidence was caused by the police misconduct. This causal question is important because causality acts as a limiting principle when deciding when to apply the exclusionary rule. A basic view of the exclusionary rule suggests that evidence …

The Second Amendment In A Carceral State, Alice Ristroph

Northwestern University Law Review

No abstract provided.

Bitcoin Searches And Preserving The Third-Party Doctrine, Christine A. Cortez

St. Mary's Law Journal

Abstract forthcoming.

Preview—United States V. Cooley: What Will Happen To The Thinnest Blue Line?, Jo J. Phippin

Public Land & Resources Law Review

The Supreme Court of the United States ("Supreme Court") will hear oral arguments in this matter on Tuesday, March 23, 2021. This case presents the narrow issue of whether a tribal police officer has the authority to investigate and detain a non-Indian on a public right-of-way within a reservation for a suspected violation of state or federal law. The lower courts, holding that tribes have no such authority, granted James Cooley’s motion to suppress evidence. The Supreme Court must decide whether the lower courts erred in so deciding. While the issue before the Supreme Court is itself narrow, it has …

School “Safety” Measures Jump Constitutional Guardrails, Maryam Ahranjani

Seattle University Law Review

In the wake of George Floyd’s murder and efforts to achieve racial justice through systemic reform, this Article argues that widespread “security” measures in public schools, including embedded law enforcement officers, jump constitutional guardrails. These measures must be rethought in light of their negative impact on all children and in favor of more effective—and constitutionally compliant—alternatives to promote school safety. The Black Lives Matter, #DefundthePolice, #abolishthepolice, and #DefundSchoolPolice movements shine a timely and bright spotlight on how the prisonization of public schools leads to the mistreatment of children, particularly children with disabilities, boys, Black and brown children, and low-income children. …

The Fourth Amendment’S Forgotten Free-Speech Dimensions, Aya Gruber

Publications

No abstract provided.

The Jones Trespass Doctrine And The Need For A Reasonable Solution To Unreasonable Protection, Geoffrey Corn

Arkansas Law Review

Each day that Houston drivers exit from Interstate 45 to drive to downtown Houston, they pass an odd sight. Nestled within some bushes is an encampment of tents. This encampment is very clearly located on public property adjacent to the interstate highway, and equally clearly populated by homeless individuals. While local police ostensibly tolerate this presence, at least temporarily, the sight frequently evokes an image in my mind of a police search of those tents. This thought is especially prominent on the days I am driving to my law school, South Texas College of Law Houston, to teach my federal …

Preservation Requests And The Fourth Amendment, Armin Tadayon

Seattle University Law Review

Every day, Facebook, Twitter, Google, Amazon, ridesharing companies, and numerous other service providers copy users’ account information upon receiving a preservation request from the government. These requests are authorized under a relatively obscure subsection of the Stored Communications Act (SCA). The SCA is the federal statute that governs the disclosure of communications stored by third party service providers. Section 2703(f) of this statute authorizes the use of “f” or “preservation” letters, which enable the government to request that a service provider “take all necessary steps to preserve records and other evidence in its possession” while investigators seek valid legal process. …

Justice Sonia Sotomayor: The Court’S Premier Defender Of The Fourth Amendment, David L. Hudson Jr.

Seattle University Law Review

This essay posits that Justice Sotomayor is the Court’s chief defender of the Fourth Amendment and the cherished values it protects. She has consistently defended Fourth Amendment freedoms—in majority, concurring, and especially in dissenting opinions. Part I recounts a few of her majority opinions in Fourth Amendment cases. Part II examines her concurring opinion in United States v. Jones. Part III examines several of her dissenting opinions in Fourth Amendment cases. A review of these opinions demonstrates what should be clear to any observer of the Supreme Court: Justice Sotomayor consistently defends Fourth Amendment principles and values.