Law Commons^™

The Automated Fourth Amendment, Maneka Sinha

Faculty Scholarship

Courts routinely defer to police officer judgments in reasonable suspicion and probable cause determinations. Increasingly, though, police officers outsource these threshold judgments to new forms of technology that purport to predict and detect crime and identify those responsible. These policing technologies automate core police determinations about whether crime is occurring and who is responsible. Criminal procedure doctrine has failed to insist on some level of scrutiny of—or skepticism about—the reliability of this technology. Through an original study analyzing numerous state and federal court opinions, this Article exposes the implications of law enforcement’s reliance on these practices given the weighty interests …

Arrests: Legal And Illegal, Daniel Yeager

Faculty Scholarship

The Fourth Amendment prohibits unreasonable searches and seizures. An arrest—manifesting a police intention to transport a suspect to the stationhouse for booking, fingerprinting, and photographing—is a mode of seizure. Because arrests are so intrusive, they require roughly a fifty percent chance that an arrestable offense has occurred. Because nonarrest seizures (aka Terry stops), though no “petty indignity,” are less intrusive than arrests, they require roughly just a twenty-five percent chance that crime is afoot. Any arrest not supported by probable cause is illegal. It would therefore seem to follow that any arrest supported by probable cause is legal. But it …

A Reasonable And Well-Reasoned Teaching Tool In Unreasonable Times, Jasmine Gonzales Rose

Faculty Scholarship

Devon Carbado’s most recent book, Unreasonable: Black Lives, Police Power, and the Fourth Amendment, is a must-read for anyone studying or concerned with criminal procedure or policing. Unlike some of Professor Carbado’s other work, the brilliance of this book is not necessarily new conceptualizations or theorizations—for which he is well known—but rather centers on accessible pedagogy. If you have studied race and policing, you are not likely to find a new case, study, or reference to scholarship in the book. But, you are going to understand anti-Black racism, policing, the Fourth Amendment, and their intersections better than you did …

Constitutionalizing Racism, Jonathan Feingold

Faculty Scholarship

Unreasonable is Devon Carbado at his best. Through accessible prose, carefully crafted hypotheticals, effective visualizations, and some cross-examination (for the reader), Carbado reintroduces us to the Fourth Amendment. In arresting detail, Unreasonable" exposes how the Supreme Court has turned the Fourth Amendment against “the people”—and specifically, against people racialized as Black. Part of the “Bill of Rights,” the Fourth Amendment was adopted to protect “the right of the people” from police overreach. Yet over the past half-century, the Supreme Court has systematically repositioned the Fourth Amendment as a weapon of police power. Or as Carbado argues: whereas many assume …

Are Police Officers Bayesians? Police Updating In Investigative Stops, Jeffrey A. Fagan, Lila J.E. Nojima

Faculty Scholarship

Theories of rational behavior assume that actors make decisions where the benefits of their acts exceed their costs or losses. If those expected costs and benefits change over time, behavior will change accordingly as actors learn and internalize the parameters of success and failure. In the context of proactive policing, police stops that achieve any of several goals — constitutional compliance, stops that lead to “good” arrests or summonses, stops that lead to seizures of weapons, drugs, or other contraband, or stops that produce good will and citizen cooperation — should signal to officers the features of a stop that …

Black Lives Monitored, Chaz Arnett

Faculty Scholarship

The police killing of George Floyd added fuel to the simmering flames of racial injustice in America following a string of similarly violent executions during a global pandemic that disproportionately ravaged the health and economic security of Black families and communities. The confluence of these painful realities exposed deep vulnerabilities and renewed a reckoning with the long unfulfilled promise of racial equality, inspiring large-scale protests around the country and across the globe. As with prior movements for racial justice, from slavery abolition to the civil rights movement’s demand to end Jim Crow, protests have been met with extreme force, either …

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 …

The Constitutional Costs Of School Policing, Maryam Ahranjani, Natalie Saing

Faculty Scholarship

Abstract

Responding to fears of violence and liability on K-12 campuses, local school boards and superintendents have made on-site or embedded school police omnipresent in American public schools. Yet, very little attention is paid to the many costs associated with their presence. When situating law enforcement’s presence squarely in the racist history of policing and school policing, the juxtaposition with the civic purpose of public education reveals significant constitutional costs. This Article builds on existing scholarship by bringing attention to the conflict between the First, Fourth, Fifth, Eighth, and Fourteenth Amendments and the dimensions of embedded school police. Ultimately, schools …

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, …

"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 …

The Expressive Fourth Amendment, Karen Pita Loor

Faculty Scholarship

After the eight-minute and forty-six second video of George Floyd’s murder went viral, cities across the United States erupted in mass protests with people outraged by the death of yet another Black person at the hands of police. The streets were flooded for months with activists and community members of all races marching, screaming, and demonstrating against police brutality and for racial justice. Police—like warriors against enemy forces—confronted overwhelmingly peaceful protesters with militarized violence and force. Ultimately, racial justice protesters and members of the media brought lawsuits under section 1983 of the Civil Rights Act in the district courts of …

Visible Policing: Technology, Transparency, And Democratic Control, Hannah Bloch-Wehba

Faculty Scholarship

Law enforcement has an opacity problem. Police use sophisticated technologies to monitor individuals, surveil communities, and predict behaviors in increasingly intrusive ways. But legal institutions have struggled to understand—let alone set limits on—new investigative methods and techniques for two major reasons. First, new surveillance technology tends to operate in opaque and unaccountable ways, augmenting police power while remaining free of meaningful oversight. Second, shifts in Fourth Amendment doctrine have expanded law enforcement’s ability to engage in surveillance relatively free of scrutiny by courts or by the public. The result is that modern policing is not highly visible to oversight institutions …

Law Enforcement's Lochner, Miriam H. Baer

Faculty Scholarship

No abstract provided.

Tear Gas + Water Hoses + Dispersal Orders: The Fourth Amendment Endorses Brutality In Protest Policing, Karen Pita Loor

Faculty Scholarship

Thirty years ago, in Graham v. Connor, the Supreme Court determined that excessive-force claims against police should proceed via the Fourth Amendment, which theoretically protects an individual against unreasonable seizures. However, the Court showed extreme deference to law enforcement’s use of force by using a permissive reasonableness analysis that bestows on police great leeway to make quick split-second decisions in tense and rapidly evolving circumstances. The result is a test that, from its inception, has been too forgiving of police violence and misconduct. This lax reasonableness standard, along with qualified immunity principles, has shielded police from § 1983 civil rights …

A Third-Party Doctrine For Digital Metadata, H. Brian Holland

Faculty Scholarship

For more than four decades, the third-party doctrine was understood as a bright-line, categorical rule: there is no legitimate privacy interest in any data that is voluntarily disclosed or conveyed to a third party. But this simple rule has dramatic effects in a world of ubiquitous networked computing, mobile technologies, and the commodification of information. The digital devices that facilitate our daily participation in modern society are connected through automated infrastructures that are designed to generate vast quantities of data, nearly all of which is captured, utilized, and stored by third-party service providers. Under a plain reading of the third-party …

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 …

Privacy And Pandemics, Clarisa Long

Faculty Scholarship

The beginning of 2020 marked an unexpected turn for the world, the global pandemic of COVID-19 has affected every aspect of life. It has also created an unprecedented opportunity for governments to justify the expansion of their surveillance and collection of data. The foregoing essay, which was first published in Faculty Publications at Scholarship Archive of the Columbia Law School focuses on two types of data collection – governmental mass collection of nonanonymized location data and state-collected nonanonymized data on people's health and immunity status. Several countries have applied one or both practices and it is relevant to look into …

Core Criminal Procedure, Steven Arrigg Koh

Faculty Scholarship

Constitutional criminal procedural rights are familiar to contemporary criminal law scholars and practitioners alike. But today, U.S. criminal justice may diverge substantially from its centuries-old framework when all three branches recognize only a core set of inviolable rights, implicitly or explicitly discarding others. This criminal procedural line drawing takes place when the U.S. criminal justice system engages in law enforcement cooperation with foreign criminal justice systems in order to advance criminal cases.

This Article describes the two forms of this criminal procedural line drawing. The first is a “core criminal procedure” approach, rooted in fundamental rights, that arises in the …

Brief Of Professors Of Law, Us V. Bergdahl, Joshua E. Kastenberg, Rachel E. Vanlandingham, Geoffrey S. Corn

Faculty Scholarship

When scrutinizing executive actions for unlawful command influence, this Court must account for a president’s immense power over the military. The extant judicial test for unlawful command influence – a violation of due process in the military setting – is a contextual one, and hence must consider the unique and unparalleled authority of the Commander-In-Chief over the military and individual service-members when the president’s actions are at issue. This executive power should also be evaluated in light of its myriad, and historically important, constitutional and statutory constraints – some predating the birth of the United States – that appropriately continue …

Lawful Searches Incident To Unlawful Arrests: A Reform Proposal, Mark A. Summers

Faculty Scholarship

No abstract provided.

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 …

The Public Information Fallacy, Woodrow Hartzog

Faculty Scholarship

The concept of privacy in “public” information or acts is a perennial topic for debate. It has given privacy law fits. People struggle to reconcile the notion of protecting information that has been made public with traditional accounts of privacy. As a result, successfully labeling information as public often functions as a permission slip for surveillance and personal data practices. It has also given birth to a significant and persistent misconception — that public information is an established and objective concept.

In this article, I argue that the “no privacy in public” justification is misguided because nobody knows what “public” …

Right Result, Wrong Reason: Why The Intent Requirement In Florida V. Jardines Trespasses On The Clarity Of The Fourth Amendment, Heather Baxter

Faculty Scholarship

No abstract provided.

Reforming Institutions: The Judicial Function In Bankruptcy And Public Law Litigation, Kathleen G. Noonan, Jonathan C. Lipson, William H. Simon

Faculty Scholarship

Public law litigation (PLL) is among the most important and controversial types of dispute that courts face. These civil class actions seek to reform public agencies such as police departments, prison systems, and child welfare agencies that have failed to meet basic statutory or constitutional obligations. They are controversial because critics assume that judicial intervention is categorically undemocratic or beyond judicial expertise.

This Article reveals flaws in these criticisms by comparing the judicial function in PLL to that in corporate bankruptcy, where the value and legitimacy of judicial intervention are better understood and more accepted. Our comparison shows that judicial …

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 …

Reevaluating School Searches Following School-To-Prison Pipeline Reforms, Joshua Gupta-Kagan

Faculty Scholarship

The U.S. Supreme Court held in New Jersey v. T.L.O. that school officials could search students without a warrant and with only reasonable suspicion, not probable cause, because of schools’ need for discipline and the relationship between educators and students. That case belongs to a body of Fourth Amendment cases involving, in T.L.O.’s terms, “special needs, beyond the normal need for law enforcement.” What Fourth Amendment standard, then, governs searches involving one of the roughly 20,000 school resource officers (SROs) in American schools? Most state courts to decide the issue in the 1990s and 2000s found that T.L.O. applied …

The End Of Intuition-Based High-Crime Areas, Ben Grunwald, Jeffrey 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 …

Immigration Detainers, Local Discretion, And State Law's Historical Constraints, Kate Evans

Faculty Scholarship

No abstract provided.

The Value Of Deviance: Understanding Contextual Privacy, Timothy Casey

Faculty Scholarship

Recent decisions by the Supreme Court in Carpenter v. United States and the Illinois Supreme Court in Rosenbach v. Six Flags Entertainment Corporation signal a shift in the traditional understanding of what exactly is protected by a privacy interest. Carpenter distinguished between a police officer’s observation of a suspect’s location and a perpetual catalogue of a person’s movements obtained through cell site location information (CSLI). The pervasive and vast quantity of information from CSLI exposed a protected privacy interest. In Rosenbach, the Illinois Supreme Court found the unique and personal quality of biometric information meant that consent and disclosure requirements …

Byrd V United States: Unauthorized Drivers Of Rental Cars Have Fourth Amendment Rights? Not As Evident As It Seems, Tracey Maclin

Faculty Scholarship

No discerning student of the Supreme Court would contend that Justice Anthony Kennedy broadly interpreted the Fourth Amendment during his thirty years on the Court. His majority opinions in Maryland v. King, Drayton v. United States and his willingness to join the three key sections of Justice Scalia’s opinion in Hudson v. Maryland, which held that suppression is never a remedy for knock-and-announce violations, are just a few examples of Justice Kennedy’s narrow view of the Fourth Amendment.

In light of his previous votes in search and seizure cases, surprisingly Justice Kennedy, in what would be his final Fourth Amendment …