Law Commons^™

Facial Recognition And The Fourth Amendment, Andrew Ferguson

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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 …

Transnational Government Hacking, Jennifer Daskal

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No abstract provided.

Big Data Prosecution And Brady, Andrew Ferguson

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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 Exclusionary Rule In The Age Of Blue Data, Andrew Ferguson

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In Herring v. United States, Chief Justice John Roberts reframed the Supreme Court’s understanding of the exclusionary rule: “As laid out in our cases, the exclusionary rule serves to deter deliberate, reckless, or grossly negligent conduct, or in some circumstances recurring or systemic negligence.” The open question remains: how can defendants demonstrate sufficient recurring or systemic negligence to warrant exclusion? The Supreme Court has never answered the question, although the absence of systemic or recurring problems has figured prominently in two recent exclusionary rule decisions. Without the ability to document recurring failures, or patterns of police misconduct, courts can dismiss …

Notice And Standing In The Fourth Amendment: Searches Of Personal Data, Jennifer Daskal

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In at least two recent cases, courts have rejected service providers' capacity to raise Fourth Amendment claims on behalf of their customers. These holdings rely on longstanding Supreme Court doctrine establishing a general rule against third parties asserting the Fourth Amendment rights of others. However, there is a key difference between these two recent cases and those cases on which the doctrine rests. The relevant Supreme Court doctrine stems from situations in which someone could take action to raise the Fourth Amendment claim, even if the particular thirdparty litigant could not. In the situations presented by the recent cases, by …

Policing Predictive Policing, Andrew Ferguson

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Predictive policing is sweeping the nation, promising the holy grail of policing – preventing crime before it happens. Police have embraced predictive analytics and data-driven metrics to improve law enforcement tactics, practice, and strategy. Predictive “hot spots” become targets for intensive police surveillance. Targeted “hot people” become suspects. In big cities and small towns, data-based predictions drive police patrol schedules. Risk assessment algorithms target suspicious individuals. Increased data collection fuels a growing feedback loop requiring more robust data crunching systems.All of these predictive innovations share one thing in common: a belief that crime can be understood by identifying and analyzing …

The 'Smart' Fourth Amendment, Andrew Ferguson

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“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 …

Carpenter V. United States: Brief Of Scholars Of Criminal Procedure And Privacy As Amici Curiae In Support Of Petitioner, Andrew Ferguson

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Amici curiae are forty-two scholars engaged in significant research and/or teaching on criminal procedure and privacy law. This brief addresses issues that are within amici’s particular areas of scholarly expertise. They have a shared interest in clarifying the law of privacy in the digital era, and believe that a review of scholarly literature on the topic is helpful to answering the question in this case. This brief is co-authored by Harry Sandick, Kathrina Szymborski, & Jared Buszin of Patterson Belknap Webb & Tyler LLP.Carpenter v. United States presents an opportunity to reconsider the Fourth Amendment in the digital age. Cell …

Policing Criminal Justice Data, Wayne Logan, Andrew Ferguson

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This article addresses a matter of fundamental importance to the criminal justice system: the presence of erroneous information in government databases and the limited government accountability and legal remedies for the harm that it causes individuals. While a substantial literature exists on the liberty and privacy perils of large multi-source data assemblage, often termed "big data," this article addresses the risks associated with the collection, generation and use of "small data" (i.e., individual-level, discrete data points). Because small data provides the building blocks for all data-driven systems, enhancing its quality will have a significant positive effect on the criminal justice …

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

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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 …

The Internet Of Things And The Fourth Amendment Of Effects, Andrew Ferguson

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By 2020 there will be billions of “things” connected through the “Internet of Things.” These smart devices built within our homes, cars, smartphones, clothing, and accessories present new possibilities for technological surveillance for law enforcement. This network of smart devices also poses a new challenge for a Fourth Amendment built around “effects.” The constitutional language protecting “persons, houses, papers, and effects” from unreasonable searches and seizures must confront this change. This article addresses how a Fourth Amendment built on old-fashioned “effects” can address a new world when things are no longer just inactive, static objects, but objects that create and …

Big Data And Predictive Reasonable Suspicion, Andrew Ferguson

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The Fourth Amendment requires “reasonable suspicion” to seize a suspect. As a general matter, the suspicion derives from information a police officer observes or knows. It is individualized to a particular person at a particular place. Most reasonable suspicion cases involve police confronting unknown suspects engaged in observable suspicious activities. Essentially, the reasonable suspicion doctrine is based on “small data” – discrete facts involving limited information and little knowledge about the suspect.But what if this small data is replaced by “big data”? What if police can “know” about the suspect through new networked information sources? Or, what if predictive analytics …

The Un-Territoriality Of Data, Jennifer Daskal

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Territoriality looms large in our jurisprudence, particularly as it relates to the government’s authority to search and seize. Fourth Amendment rights turn on whether the search or seizure takes place territorially or extraterritorially; the government’s surveillance authorities depend on whether the target is located within the United States or without; and courts’ warrant jurisdiction extends, with limited exceptions, only to the borders’ edge. Yet the rise of electronic data challenges territoriality at its core. Territoriality, after all, depends on the ability to define the relevant “here” and “there,” and it presumes that the “here” and “there” have normative significance. The …

Personal Curtilage: Fourth Amendment Security In Public, Andrew Ferguson

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Do citizens have any Fourth Amendment protection from sense-enhancing surveillance technologies in public? This article engages a timely question as new surveillance technologies have redefined expectations of privacy in public spaces.This article proposes a new theory of Fourth Amendment security based on the ancient theory of curtilage protection for private property. Curtilage has long been understood as a legal fiction that expands the protection of the home beyond the formal structures of the house. Curtilage recognizes a buffer zone beyond the four corners of the home that deserves protection, even in public, even if accessible to public view. Based on …

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

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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 …

Constitutional Culpability: Questioning The New Exclusionary Rules, Andrew Ferguson

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This article addresses the questions left unanswered by the Supreme Court’s recent exclusionary rule cases. The Hudson-Herring-Davis trilogy presents a new and largely unexamined doctrinal landscape for Fourth Amendment suppression hearings. Courts, litigators, and scholars are only now assessing what has changed on the ground in trial practice.Once an automatic remedy for any constitutional violation, the exclusionary rule, now necessitates a separate and more searching analysis. Rights and remedies have been decoupled, such that a clear Fourth Amendment constitutional violation may not lead to the exclusion of evidence. Instead, it now leads to an examination of the conduct of the …

Predictive Policing And Reasonable Suspicion, Andrew Ferguson

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Predictive policing is a new law enforcement strategy to reduce crime by predicting criminal activity before it happens. Using sophisticated computer algorithms to forecast future events from past crime patterns, predictive policing has become the centerpiece of a new smart-policing strategy in several major cities. The initial results have been strikingly successful in reducing crime.This article addresses the Fourth Amendment consequences of this police innovation, analyzing the effect of predictive policing on the concept of reasonable suspicion. This article examines predictive policing in the context of the larger constitutional framework of “prediction” and the Fourth Amendment. Many aspects of current …

Notes On Borrowing And Convergence, Robert Tsai, Nelson Tebbe

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his is a response to Jennifer E. Laurin, "Trawling for Herring: Lessons in Doctrinal Borrowing and Convergence," 111 Colum. L. Rev. 670 (2011), which analyzes the Supreme Court's resort to tort-based concepts to limit the reach of the Fourth Amendment's exclusionary rule. We press three points. First, there are differences between a general and specific critique of constitutional borrowing. Second, the idea of convergence as a distinct phenomenon from borrowing has explanatory potential and should be further explored. Third, to the extent convergence occurs, it matters whether concerns of judicial administration or political reconstruction are driving doctrinal changes.

Crime Mapping And The Fourth Amendment: Redrawing 'High Crime Areas', Andrew Ferguson

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This article addresses how “crime mapping” technology has the potential to reshape Fourth Amendment protections in designated “high crime areas.” In the past few years, the ability of police administrators to identify and officially label “high crime areas” has rapidly expanded. Geographic Information Systems (GIS) and crime mapping technology has simplified the collection and analysis of crime statistics. These GIS crime mapping technologies can produce almost perfect information about the level, rate, and geographic location of crimes in any given area.While effective policing tools, these technologies have constitutional consequences that are only now being considered. Under existing Supreme Court precedent, …

The 'High Crime Area' Question: Requiring Verifiable And Quantifiable Evidence For Fourth Amendment Reasonable Suspicion Analysis, Andrew Ferguson, Damien Bernache

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This article proposes a legal framework to analyze the "high crime area" concept in Fourth Amendment reasonable suspicion challenges.Under existing Supreme Court precedent, reviewing courts are allowed to consider that an area is a "high crime area" as a factor to evaluate the reasonableness of a Fourth Amendment stop. See Illinois v. Wardlow, 528 U.S. 119 (2000). However, the Supreme Court has never defined a "high crime area" and lower courts have not reached consensus on a definition. There is no agreement on what a "high-crime area" is, whether it has geographic boundaries, whether it changes over time, whether it …

The Bill Of Rights And The Constitution: Facing The Challenge Of The Future, Stephen Wermiel

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No abstract provided.

Race, Cops, And Traffic Stops, Angela J. Davis

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This article discusses the Supreme Court's failure to provide a clear and effective remedy for discriminatory pretextual traffic stops. The first part explores the discretionary nature of pretextual stops and their discriminatory effect on African-Americans and Latinos. Then, the article examines Whren v. United States, a Supreme Court case in which the petitioners claimed that these “pretextual stops” violate the Fourth Amendment to the Constitution and are racially discriminatory. The Supreme Court rejected the claim, upholding the constitutionality of pretextual stops based on probable cause and noting that claims of racial discrimination must be challenged under the Equal Protection Clause. …

A Reconsideration Of The Fourth Amendment's Doctrine Of Search Incident To Arrest.Pdf, David Aaronson

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INTRODUCTION: The doctrine of search incident to arrest provides that, as an incident to every lawful full custody arrest, law enforcement officers have an automatic right to conduct a thorough search of the arrestee and the area within his immediate control.' Although the Supreme Court has stated that the search incident to arrest exception to the fourth amendment's general requirement of a search warrant has been "settled from its first enunciation," the doctrine should be reexamined in terms of constitutional jurisprudence.