Law Commons^™

"Hey, Hey! Ho, Ho! These Mass Arrests Have Got To Go!": The Expressive Fourth Amendment Argument, Karen Pita Loor

Faculty Scholarship

The racial justice protests ignited by the murder of George Floyd in May 2020 constitute the largest protest movement in the United States. Estimates suggest that between fifteen and twenty-six million people protested across the country during the summer of 2020 alone. Not only were the number of protestors staggering, but so were the number of arrests. Within one week of when the video of George Floyd’s murder went viral, police arrested ten thousand people demanding justice on American streets, with police often arresting activists en masse. This Essay explores mass arrests and how they square with Fourth Amendment …

An Empirical Assessment Of Pretextual Stops And Racial Profiling, Stephen Rushin

Faculty Publications & Other Works

This Article empirically illustrates that legal doctrines permitting police officers to engage in pretextual traffic stops may contribute to an increase in racial profiling. In 1996, the U.S. Supreme Court held in Whren v. United States that pretextual traffic stops do not violate the Fourth Amendment. As long as police officers identify an objective violation of a traffic law, they may lawfully stop a motorist--even if their actual intention is to use the stop to investigate a hunch that by itself does not amount to probable cause or reasonable suspicion.

Scholars and civil rights activists have sharply criticized Whren, …

A World Of Difference? Law Enforcement, Genetic Data, And The Fourth Amendment, Christopher Slobogin, J. W. Hazel

Vanderbilt Law School Faculty Publications

Law enforcement agencies are increasingly turning to genetic databases as a way of solving crime, either through requesting the DNA profile of an identified suspect from a database or, more commonly, by matching crime scene DNA with DNA profiles in a database in an attempt to identify a suspect or a family member of a suspect. Neither of these efforts implicates the Fourth Amendment, because the Supreme Court has held that a Fourth Amendment "search" does not occur unless police infringe "expectations of privacy society is prepared to recognize as reasonable" and has construed that phrase narrowly, without reference to …

Extraterritorial Rights In Border Enforcement, Fatma Marouf

Faculty Scholarship

Recent shifts in border enforcement policies raise pressing new questions about the extraterritorial reach of constitutional rights. Policies that keep asylum seekers in Mexico, expand the use of expedited removal, and encourage the cross-border use of force require courts to determine whether noncitizens who are physically outside the United States, or who are treated for legal purposes as being outside even if they have entered the country, can claim constitutional protections. This Article examines a small but growing body of cases addressing these extraterritoriality issues in the border enforcement context, focusing on disparities in judicial analyses that have resulted in …

Revitalizing Fourth Amendment Protections: A True Totality Of The Circumstances Test In § 1983 Probable Cause Determinations, Ryan Sullivan

Nebraska College of Law: Faculty Publications

The Article analyzes claims of police misconduct and false arrest, specifically addressing the issue of whether a police officer may ignore evidence of an affirmative defense, such as self-defense, when determining probable cause for an arrest. The inquiry most often arises in § 1983 civil claims for false arrest where the officer was aware of some evidence a crime had been committed, but was also aware of facts indicating the suspect had an affirmative defense to the crime observed. In extreme cases, the affirmative defense at issue is actually self-defense in response to the officer’s own unlawful conduct. As police …

Big Data Prosecution And Brady, Andrew Ferguson

Articles in Law Reviews & Other Academic Journals

Prosecutors are joining the big data revolution, adopting “intelligence-driven” strategies to target crime patterns. Centralized big data systems now track offenders, places, and groups allowing prosecutors to link crimes by time, place, associations, or other connections. Adding to these types of formalized, structured databases are growing sources of raw, unstructured big data from digital surveillance technologies like video cameras, police body cameras, and automated license plate readers. The prosecutors of the future will sit on a wealth of valuable investigative insights – all searchable and potentially relevant for a more aggressive and proactive investigation strategy.But as helpful as these new …

The Supreme Court And The Illegitimacy Of Lawless Fourth Amendment Policing, Ayesha B. Hardaway

Faculty Publications

For more than half a century, documented police brutality has affected communities of color and the American legal system has largely failed to address it. Beginning with Rizzo v. Goode, Supreme Court decisions have allowed local police departments nearly unlimited discretion in their policies and practices. That decision and others demonstrate that the Supreme Court is misaligned with governmental initiated reforms. The Violent Crime Control and Law Enforcement Act of 1994, which allows the U.S. Attorney General and the U.S. Department of Justice (“DOJ”) to investigate law enforcement agencies’ practices and seek injunctive relief against agencies found to have engaged …

Cops And Cars: How The Automobile Drove Fourth Amendment Law, Tracey Maclin

Faculty Scholarship

This is an essay on Professor Sarah A. Seo’s new book, Policing the Open Road: How Cars Transformed American Freedom (Harvard Univ. Press 2019). I focus on Professor Seo’s analysis of Carroll v. United States, 267 U.S. 132 (1925) and Brinegar v. United States, 338 U.S. 160 (1949). Carroll is important not only because it was the Court’s first car case. Understanding Carroll (and Brinegar, which solidified and expanded Carroll’s holding) is essential because, nearly one hundred years later, its logic continues to direct how the modern Court resolves Fourth Amendment claims of motorists. Put simply, a majority of today’s …

Customs, Immigration, And Rights: Constitutional Limits On Electronic Border Searches, Laura K. Donohue

Georgetown Law Faculty Publications and Other Works

The warrantless search of travelers’ electronic devices as they enter and exit the United States is rapidly increasing. While the Supreme Court has long recognized a border-search exception to the Fourth Amendment’s warrant requirement, it applies to only two interests: promoting the duty regime and preventing contraband from entering the country; and ensuring that individuals are legally admitted. The government’s recent use of the exception goes substantially beyond these matters. U.S. Customs and Border Protection (CBP) and Immigration and Customs Enforcement (ICE) are using it to search electronic devices, and at times the cloud, for evidence of any criminal activity, …

Cops And Cars: How The Automobile Drove Fourth Amendment Law, Tracey Maclin

UF Law Faculty Publications

This is an essay on Professor Sarah A. Seo’s new book, Policing the Open Road: How Cars Transformed American Freedom (Harvard Univ. Press 2019). I focus on Professor Seo’s analysis of Carroll v. United States, 267 U.S. 132 (1925) and Brinegar v. United States, 338 U.S. 160 (1949). Carroll is important not only because it was the Court’s first car case. Understanding Carroll (and Brinegar, which solidified and expanded Carroll’s holding) is essential because, nearly one hundred years later, its logic continues to direct how the modern Court resolves Fourth Amendment claims of motorists. Put simply, a majority of today’s …

The End Of Intuition-Based High-Crime Areas, Ben Grunwald, Jeffrey A. Fagan

Faculty Scholarship

In 2000, the Supreme Court held in Illinois v. Wardlow that a suspect’s presence in a “high-crime area” is relevant in determining whether an officer has reasonable suspicion to conduct an investigative stop. Despite the importance of the decision, the Court provided no guidance about what that standard means, and over fifteen years later, we still have no idea how police officers understand and apply it in practice. This Article conducts the first empirical analysis of Wardlow by examining data on over two million investigative stops conducted by the New York Police Department from 2007 to 2012.

Our results suggest …

Martin Luther King Jr. And Pretext Stops (And Arrests): Reflections On How Far We Have Not Come Fifty Years Later, Tracey Maclin, Maria Savarese

UF Law Faculty Publications

By January, 1956, the Montgomery Bus boycott was in full-swing. Black citizens in Montgomery, Alabama were refusing to ride the city’s private buses to protest racially segregated seating. On the afternoon of January 26, 1956, twenty-seven-year-old Martin Luther King, Jr. had finished his day of work at the Dexter Avenue Baptist Church in Montgomery. On his drive home, King stopped his vehicle to offer a ride to a group of bus boycotters standing at a downtown car-pool location. After the boycotters entered King’s car, two motorcycle policemen pulled-in behind King’s vehicle. While everyone in King’s car tried to remain calm, …

Orwell's 1984 And A Fourth Amendment Cybersurveillance Nonintrusion Test, Margaret Hu

Scholarly Articles

This Article describes a cybersurveillance nonintrusion test under the Fourth Amendment that is grounded in evolving customary law to replace the reasonable expectation of privacy test formulated in Katz v. United States. To illustrate how customary law norms are shaping modern Fourth Amendment jurisprudence, this Article examines the recurrence of judicial references to George Orwell’s novel, 1984, within the Fourth Amendment context when federal courts have assessed the constitutionality of modern surveillance methods. The Supreme Court has indicated that the Fourth Amendment privacy doctrine must now evolve to impose meaningful limitations on the intrusiveness of new surveillance technologies.

A …

Do Foreign Nationals Really Have Constitutional Rights?, John M. Greabe

Law Faculty Scholarship

[Excerpt] "Last month, President Trump issued an executive order that has become known as the "travel ban." Among other things, the ban sought to temporarily exclude from the United States foreign nationals from seven predominantly Muslim countries.

Almost immediately, a number of plaintiffs sued and succeeded in obtaining "stays" preventing the ban from going into effect until the cases can be tried. Courts granted these stays because they found that the ban was likely to violate, among other things, anti-discrimination principles embedded within the First and Fifth Amendments to the United States Constitution.

The 'Smart' Fourth Amendment, Andrew Ferguson

Articles in Law Reviews & Other Academic Journals

“Smart” devices radiate data, detailing a continuous, intimate, and revealing pattern of daily life. Billions of sensors will soon collect data from smartphones, smart homes, smart cars, medical devices and an evolving assortment of consumer and commercial products. But, what are these data trails to the Fourth Amendment? Does data emanating from devices on or about our bodies, houses, things, and digital effects fall within the Fourth Amendment’s protection of “persons, homes, papers, or effects”? Does interception of this information violate a “reasonable expectation of privacy?”The “Internet of Things” and the growing proliferation of smart devices create new opportunities for …

Unilateral Invasions Of Privacy, Roger Allan Ford

Law Faculty Scholarship

Most people seem to agree that individuals have too little privacy, and most proposals to address that problem focus on ways to give those users more information about, and more control over, how information about them is used. Yet in nearly all cases, information subjects are not the parties who make decisions about how information is collected, used, and disseminated; instead, outsiders make unilateral decisions to collect, use, and disseminate information about others. These potential privacy invaders, acting without input from information subjects, are the parties to whom proposals to protect privacy must be directed. This Article develops a theory …

Anthony Amsterdam's Perspectives On The Fourth Amendment, And What It Teaches About The Good And Bad In Rodriguez V. United States, Tracey Maclin

Faculty Scholarship

Anthony Amsterdam’s article, Perspectives On The Fourth Amendment is one of the best, if not the best, law review article written on the Fourth Amendment. Thus, Minnesota Law Review on its hundredth anniversary fittingly recognizes and honors Professor Amsterdam’s article in its Symposium edition, “Standing on the Shoulders of Giants: Celebrating 100 Volumes of the Minnesota Law Review.” I am flattered that the Law Review invited me to participate in this Symposium.

Specifically, my article connects two perspectives from Amsterdam’s article — the Fourth Amendment’s concern with discretionary police power and the Framers’ vision of the Fourth Amendment to bar …

Heien'S Mistake Of Law, Kit Kinports

Journal Articles

The Supreme Court has been whittling away at the Fourth Amendment for decades. The Court's 2014 ruling in Heien v. North Carolina allowing the police to make a traffic stop based on a reasonable mistake of law generated little controversy among the Justices and escaped largely unnoticed by the press-perhaps because yet another Supreme Court decision reading the Fourth Amendment narrowly is not especially noteworthy or because the opinion's cursory and overly simplistic analysis equating law enforcement's reasonable mistakes of fact and law minimized the significance of the Court's decision. But the temptation to dismiss Heien as just another small …

Lawn Signs: A Fourth Amendment For Constitutional Curmudgeons, Andrew Ferguson

Articles in Law Reviews & Other Academic Journals

What is the constitutional significance of the proverbial "keep off the grass" sign? This question — asked by curmudgeonly neighbors everywhere — has been given new currency in a recent decision by the United States Supreme Court. Indeed, Florida v. Jardines might have bestowed constitutional curmudgeons with significant new Fourth Amendment protections. By expressing expectations regarding — and control over — access to property, "the people" may be able to claim greater Fourth Amendment protections not only for their homes, but also for their persons, papers, and effects. This article launches a constitutionally grounded, but lighthearted campaign of citizen education …

Anthony Amsterdam's Perspectives On The Fourth Amendment, And What It Teaches About The Good And Bad In Rodriguez V. United States, Tracey Maclin

UF Law Faculty Publications

Anthony Amsterdam’s article, Perspectives On The Fourth Amendment is one of the best, if not the best, law review article written on the Fourth Amendment. Thus, Minnesota Law Review on its hundredth anniversary fittingly recognizes and honors Professor Amsterdam’s article in its Symposium edition, “Standing on the Shoulders of Giants: Celebrating 100 Volumes of the Minnesota Law Review.” I am flattered that the Law Review invited me to participate in this Symposium. Specifically, my article connects two perspectives from Amsterdam’s article — the Fourth Amendment’s concern with discretionary police power and the Framers’ vision of the Fourth Amendment to bar …

Beyond The Fourth Amendment: Additional Constitutional Guarantees That Mass Surveillance Violates, Nadine Strossen

Articles & Chapters

The ongoing dragnet communications surveillance programs raise multiple statutory and constitutional problems. Each problem alone, and even more so the whole combination, provides a serious ground at least for vastly curbing such programs, if not ending them. This Article reviews constitutional challenges to these programs to evaluate the likely success of current and future litigants.

The Fatal Flaws Of The 'Sneak And Peek' Statute And How To Fix It, Jonathan Witmer-Rich

Law Faculty Articles and Essays

In the USA PATRIOT Act, Congress authorized delayed notice search warrants — warrants authorizing a “sneak and peek” search, in which investigators conduct covert searches, notifying the occupant weeks or months after the search. These warrants also sometimes authorize covert seizures — a “sneak and steal” search — in which investigators seize evidence, often staging the scene to look like a burglary.

Covert searches invade the privacy of the home and should be used only in exceptional cases. The current legal rules governing delayed notice search warrants are conceptually flawed. The statute uses a legal doctrine — “exigent circumstances” — …

Brief For The National Association Of Social Workers And The Ohio Chapter Of The National Association Of Social Workers As Amici Curie In Support Of Petitioners, No. 13-933, United States Supreme Court (Mar. 6, 2014), Doron M. Kalir, Carolyn I. Polowy

Law Faculty Briefs and Court Documents

NASW's first argument is simple. To protect children from abuse - a major congressional and state legislative goal - this Court should apply qualified immunity to protect social workers from personal liability where a reasonable decision has been made to remove a child without a warrant.

NASW's second argument is equally cogent. DeShaney was decided 25 years ago. Since then, this Court's "continued silence" on the issue, Kovacic, 724 F.3d at 708 (Sutton, J., dissenting), has failed "to provide guidance to those charged with the difficult task of protecting child welfare within the confines of the Fourth Amendment." Camreta v. …

Big Data Distortions: Exploring The Limits Of The Aba Leatpr Standards, Andrew Ferguson

Articles in Law Reviews & Other Academic Journals

This article examines the American Bar Associations’ Standards for Criminal Justice proposed Law Enforcement Access to Third Party Records (LEATPR). The article was written to be part of an Oklahoma Law Review Symposium on the subject of the LEATPR Standards. The article explores how the ABA LEATPR Standards can survive the impact of big data policing. Big data policing, as described here, involves utilizing vast, networked databases to investigate and also predict criminal activity. Big data policing involves the use of not just third party, but "fourth party" commercial aggregators as well as de-identified data sets, that eventually can be …

Eyes In The Sky: Constitutional And Regulatory Approaches To Domestic Drone Deployment, Hillary B. Farber

Faculty Publications

This article begins with a current look at the deployment of drones domestically, both in terms of their use and the procedure for attaining approval for flight. Part II examines the capabilities of drones. Part III considers the Supreme Court's current Fourth Amendment jurisprudence and its application to law enforcement's use of drones. Part IV reviews existing and proposed federal and state regulation of drones. Part V offers constitutional and legislative prescriptions for regulating drones.

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

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 …

Pass Parallel Privacy Standards Or Privacy Perishes, Anne T. Mckenna

Journal Articles

No abstract provided.

Setting Us Up For Disaster: The Supreme Court's Decision In Terry V. Ohio, Thomas B. Mcaffee

Scholarly Works

No abstract provided.

A Parent's "Apparent" Authority: Why Intergenerational Coresidence Requires A Reassessment Of Parental Consent To Search Adult Children's Bedrooms, Hillary B. Farber

Faculty Publications

The proliferation of multigenerational U.S. households provides a new perspective on the social customs and practices concerning coresidence in the United States. Rather than relying outdated presumptions of parental control, this Article argues that police should be compelled to conduct a more thorough inquiry before searching areas occupied exclusively by the adult child. Police should differentiate between "common" and private areas, and inquire into any agreements - formal or informal - that the parent and child may have regarding access and control over such areas. By fully recognizing the changing nature of the American household and rejecting a bare reliance …

Dna Database Trawls And The Definition Of A Search In Boroian V. Mueller, David H. Kaye

Journal Articles

As a general matter, once the government acquires information from a permissible search or seizure, it can use this information in later criminal investigations. Courts have applied this simple rule to uphold the indefinite reuse of DNA samples acquired from convicted offenders. This essay describes the First Circuit Court of Appeals’ reliance on the rule in rejecting a convicted offender’s claim that his DNA sample and profile had to be removed from the federal DNA databank after he completed his sentence. Acknowledging that the rule permitting reuse should not be applied mechanically, I argue that the rule's application to DNA …