Fourth Amendment Commons^™

Rethinking Objectivity: The Problem Of Pretext In The Fourth Amendment, Monu S. Bedi

Indiana Law Journal

Pretextual encounters continue to erode the legitimacy of the Supreme Court’s Fourth Amendment jurisprudence. Simply put, a police officer can act on personal bias or animus as long as the search or seizure is deemed “objectively reasonable.” Numerous scholars (e.g., Bennett Capers, Gabriel Chin, and David Harris) have critiqued this objective standard, contending it perpetuates discriminatory practices, particularly against communities of color. The late Justice Ruth Bader Ginsburg herself suggested that the Court might need to reconsider the legal precedent she helped establish. More recently, Orin Kerr has also argued that the Court’s reliance on objective determinations is inconsistent with …

Policing Agency Data Trusts, Barry Friedman

Northwestern University Law Review

Policing agencies are indiscriminately collecting, retaining, and using vast quantities of personal data from people who are suspected of no unlawful conduct whatsoever. This has caused expressions of concern or caution from many quarters, including—notably—the Director of National Intelligence (DNI). In a declassified report, the Office of the DNI stated that massive amounts of data are being collected “on nearly everyone that is of a type and level of sensitivity . . . that could be used to cause harm to an individual’s reputation, emotional well-being, or physical safety.”

This practice of universal data collection presents a conundrum. As many …

Generative Suspicion And The Risks Of Ai-Assisted Police Reports, Andrew Guthrie Ferguson

Northwestern University Law Review

Police reports play a central role in the criminal justice system. Many times, police reports exist as the only official memorialization of what happened during an incident, shaping probable cause determinations, pretrial detention decisions, motions to suppress, plea bargains, and trial strategy. For over a century, human police officers wrote the factual narratives that shaped the trajectory of individual cases and organized the entire legal system.

This practice is about to change with the creation of AI-assisted police reports. Today, with the click of a button, large language models (LLMs), a type of generative AI using predictive text capabilities, can …

Middle Schoolers Explore The Rule Of Law At Second Annual Mandell-Boisclair Justice Camp 7-17-2025, Jordan J. Phelan

School of Law Conferences, Lectures & Events

No abstract provided.

Law School News: Middle Schoolers Explore The Rule Of Law At Second Annual Mandell-Boisclair Justice Camp 07-17-2025, Jordan J. Phelan

Life of the Law School (1993- )

No abstract provided.

Power, Responsibility, And Judicial Deference To Police Expertise In Fourth Amendment Decisionmaking, Nicholas A. Kahn-Fogel

St. John's Law Review

(Excerpt)

Courts have long deferred to police expertise in Fourth Amendment decisionmaking, most prominently in their application of the reasonable-person standard in assessments of probable cause and reasonable suspicion. Scholars have often bemoaned such deference as an abdication of the judicial obligation to make independent determinations of Fourth Amendment reasonableness. Nonetheless, the Supreme Court of the United States and lower courts are unlikely to abandon their view of police officers as possessing elevated knowledge, skill, experience, and perceptual abilities that merit judicial consideration in the evaluation of Fourth Amendment probabilities. On the other hand, the Court has tended to assume …

The Reality Of The Good Faith Exception, Matthew Tokson, Michael Gentithes

Utah Law Faculty Scholarship

The Fourth Amendment’s primary remedy is the exclusion of unlawfully obtained evidence at trial. But not every defendant whose rights are violated gets a remedy. The most substantial obstacle for defendants is the good faith exception, which directs courts to admit unlawfully collected evidence if the police can show they relied in good faith on existing authority. If the police rely on a statute that turns out to be unconstitutional, or a warrant or precedent that turns out to be invalid, the evidence they obtain will nonetheless be admitted under the good faith exception. The Supreme Court has justified this …

The Automated Fourth Amendment, Maneka Sinha

Emory Law Journal

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 …

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 …

How The 2020 Protests Raises The Issues Of Policing Tactics, Brianna Knibbs

Capstones

With the 2020 Racial protests spreading all across the United States in the wake of the killing of George Floyd, the issues of police tactics used against protesters have raised a lot of questions on how it plays a role into the systematic police racism. In addition to the challenges for those who try to sue police departments.

Bond Conditions As Fourth Amendment Seizures, Rebecca Laden

Cardozo Law Review

No abstract provided.

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 …

A Synthesis Of The Science And Law Relating To Eyewitness Misidentifications And Recommendations For How Police And Courts Can Reduce Wrongful Convictions Based On Them, Henry F. Fradella

Seattle University Law Review

The empirical literature on perception and memory consistently demonstrates the pitfalls of eyewitness identifications. Exoneration data lend external validity to these studies. With the goal of informing law enforcement officers, prosecutors, criminal defense attorneys, judges, and judicial law clerks about what they can do to reduce wrongful convictions based on misidentifications, this Article presents a synthesis of the scientific knowledge relevant to how perception and memory affect the (un)reliability of eyewitness identifications. The Article situates that body of knowledge within the context of leading case law. The Article then summarizes the most current recommendations for how law enforcement personnel should—and …

Crimes Of Suspicion, Lauryn P. Gouldin

Emory Law Journal

Requiring that officers have suspicion of specific crimes before they seize people during stops or arrests is a fundamental rule-of-law limitation on government power. Until very recently, the Supreme Court studiously avoided saying whether reasonable suspicion for street and traffic stops must be crime specific, and lower courts are sharply divided as a result. Statements made in Kansas v. Glover that the Fourth Amendment requires reasonable suspicion of a “particular crime” or of “specific criminal activity” may reflect an effort to rehabilitate this foundational principle, but crime specificity was not the Court’s focus in Glover. Meanwhile, Fourth Amendment scholars, even …

Exigencies, Not Exceptions: How To Return Warrant Exceptions To Their Roots, Michael Gentithes

Akron Law Faculty Publications

When a police officer interacts with an individual, the encounter is subject to myriad exceptions to the Fourth Amendment’s warrant requirement that lack a coherent justifying theory. For instance, officers can warrantlessly search if an automobile was involved in the interaction, an arrest occurred, or a protective sweep was necessary to prevent a third- party ambush. Officers and indi viduals struggle to understand the breadth and complexity of these exceptions. The resulting confusion breeds widespread distrust and raises the tension in millions of interactions across the country. There is an easier way. The Supreme Court has recently reaffirmed its support …

Fourth Amendment Infringement Is Afoot: Revitalizing Particularized Reasonable Suspicion For Terry Stops Based On Vague Or Discrepant Suspect Descriptions, Caroline E. Lewis

William & Mary Law Review

In Terry v. Ohio, the Supreme Court granted law enforcement broad power to perform a limited stop and search of someone when an officer has reasonable suspicion that the person is engaged in criminal activity. The resulting “Terry stop” created a way for police officers to investigate a suspicious person without requiring full probable cause for an arrest. The officer need only have “reasonable suspicion supported by articulable facts” based on the circumstances and the officer’s policing “experience that criminal activity may be afoot.” Reasonable suspicion is—by design—a broad standard, deferential to police officers’ judgment. Law enforcement officers …

Imposing A Daily Burden On Thousands Of Innocent Citizens: The Supreme Court Unnecessarily Limited Motorists' Fourth Amendment Rights In Kansas V. Glover, George M. Dery

William & Mary Journal of Race, Gender, and Social Justice

This Article analyzes Kansas v. Glover, in which the Supreme Court ruled that an officer could stop a vehicle owned by a person having a revoked license on the assumption that the owner was currently driving the vehicle. This work examines the concerns created by Glover’s ruling. This Article asserts that, in creating its new rule enabling police to stop a motorist without first confirming his or her identity, the Court based its holding on the existence of two facts, thus effectively changing its traditional “totality of the circumstances” analysis for reasonable suspicion to a categorical rule. Further, …

Something Rots In Law Enforcement And It's The Search Warrant: The Breonna Taylor Case, Blanche Bong Cook

Faculty Publications & Other Works

When police rammed the door of Breonna Taylor’s home and shot her six times in a hail of thirty-two bullets, they lacked legal justification for being there. The affidavit supporting the warrant was perjurious, stale, vague, and lacking in particularity. The killing of Breonna Taylor, however, is not just a story about the illegality of the warrant, it is also about the legality of the circumstances that facilitated her killing. Police officers lying to obtain warrants and magistrates rubber stamping facially defective warrants are the stories of individual failings. This article examines a weightier structural issue: how the Supreme Court …

Suspicionless Policing, Julian A. Cook

Scholarly Works

The tragic death of Elijah McClain—a twenty-three-year-old, slightly built, unarmed African American male who was walking home along a sidewalk when he was accosted by three Aurora, Colorado police officers—epitomizes the problems with policing that have become a prominent topic of national conversation. Embedded within far too many police organizations is a culture that promotes aggressive investigative behaviors and a disregard for individual liberties. Incentivized by a Supreme Court that has, over the course of several decades, empowered the police with expansive powers, law enforcement organizations have often tested—and crossed—the constitutional limits of their investigative authorities. And too often it …

Making The Impractical, Practical: A Modest And Overdue Approach To Reforming Fourth Amendment Consent Search Doctrine, Augustine P. Manga

William & Mary Journal of Race, Gender, and Social Justice

At some point in your life, you may have a personal encounter with a police officer. During that moment, you may feel utterly powerless, especially if you do not know your rights. One important right that police are not required to inform people of is their right to deny an officer’s request to search their property. Forty-eight years ago, the Supreme Court made its position clear in Schneckloth v. Bustamonte that requiring law enforcement to provide citizens with this warning would be “thoroughly impractical.” Since then, the relationship between law enforcement and society—especially communities of color—has gradually deteriorated, and states …

Facial Recognition And The Fourth Amendment, Andrew Ferguson

Scholarly Articles in Law Reviews & Journals

Facial recognition offers a totalizing new surveillance power. Police now have the capability to monitor, track, and identify faces through networked surveillance cameras and datasets of billions of images. Whether identifying a particular suspect from a still photo, or identifying every person who walks past a digital camera, the privacy and security impacts of facial recognition are profound and troubling.

This Article explores the constitutional design problem at the heart of facial recognition surveillance systems. One might hope that the Fourth Amendment – designed to restrain police power and enacted to limit governmental overreach – would have something to say …

Law School News: 'Unmatched Opportunities' 12-16-2020, Michael M. Bowden

Life of the Law School (1993- )

No abstract provided.

Rwu Law News: The Newsletter Of Roger Williams University School Of Law 12-2020, Barry Bridges, Michael M. Bowden, Nicole Dyszlewski, Louisa Fredey

Life of the Law School (1993- )

No abstract provided.

The Sacred Fourth Amendment Text, Christopher Slobogin

Michigan Law Review Online

The Supreme Court’s jurisprudence governing the Fourth Amendment’s “threshold”—a word meant to refer to the types of police actions that trigger the amendment’s warrant and reasonableness requirements—has confounded scholars and students alike since Katz v. United States. Before that 1967 decision, the Court’s decisions on the topic were fairly straightforward, based primarily on whether the police trespassed on the target’s property or property over which the target had control. After that decision—which has come to stand for the proposition that a Fourth Amendment search occurs if police infringe an expectation of privacy that society is prepared to recognize as …

How Definitive Is Fourth Amendment Textualism?, Evan H. Caminker

Michigan Law Review Online

Professor Jeffrey Bellin’s excellent article advances a comprehensive and straightforward textual approach to determining what policing activities constitute “searches” triggering the protections of the Fourth Amendment. Bellin’s thesis is that a text-based approach to interpreting the Amendment is superior to the Supreme Court’s current approach, which ever since Katz v. United States has defined “search” primarily by reference to a non-textual “reasonable expectation of privacy” standard. After soundly criticizing the ungrounded and highly subjective nature of the Katz test, Bellin declares that the Court should instead simply follow where the text leads: the Amendment protects people from a search, meaning …

The Fourth Amendment At Home, Thomas P. Crocker

Indiana Law Journal

A refuge, a domain of personal privacy, and the seat of familial life, the home holds a special place in Fourth Amendment jurisprudence. Supreme Court opinions are replete with statements affirming the special status of the home. Fourth Amendment text places special emphasis on securing protections for the home in addition to persons, papers, and effects against unwarranted government intrusion. Beyond the Fourth Amendment, the home has a unique place within constitutional structure. The home receives privacy protections in addition to sheltering other constitutional values protected by the Due Process Clause and the First Amendment. For example, under the Due …

Uncertain Immunity: Assessing Qualified Immunity In The Context Of Post-Arrest Excessive-Force Claims Arising Prior To A Judicial Determination Of Probable Cause, J. Tyler Barton

West Virginia Law Review

No abstract provided.

Law Enforcement Welfare Checks And The Community Caretaking Exception To The Fourth Amendment Warrant Requirement, Andrea L. Steffan

Loyola of Los Angeles Law Review

No abstract provided.

Please Stop: The Law Court's Recent Roadblock Decisions, Jonathan A. Block

Maine Law Review

Police checkpoints or “roadblocks” have become an increasingly utilized law enforcement tool. At best, these checkpoints result in only a minor inconvenience to motorists. When abused, however, roadblocks have the potential for invidious invasions of privacy and personal freedom. Roadblocks are designed to deter, and to a lesser extent detect, criminal activity by stopping everyone—both the guilty and the law-abiding—for a brief inspection, thereby impinging to some degree on one's freedom of travel, privacy, and “right to be let alone.” Such “seizures” must be “reasonable” under the Fourth Amendment in order to survive constitutional challenge. The major difference between roadblocks …

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 …