Law Commons^™

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 …

A Small But Mighty Docket: Select Criminal Law And Procedure Cases From The Supreme Court's 2019-20 Term, Eve Brensike Primus, Jeremy Shur

Articles

With its 2019-20 Term disrupted by the COVID-19 pandemic, the Supreme Court released just 53 signed decisions, the fewest decisions in a Term since the Civil War. But the Court's lighter docket still featured important criminal law and procedure cases touching on what constitutes reasonable individualized suspicion, the necessity of jury unanimity, and the proper form of the insanity defense.

The Mosaic Theory Of The Fourth Amendment, Orin S. Kerr

Orin Kerr

In the Supreme Court's recent decision on GPS surveillance, United States v. Jones, five justices authored or joined concurring opinions that applied a new approach to interpreting Fourth Amendment protection. Before Jones, Fourth Amendment decisions had always evaluated each step of an investigation individually. Jones introduced what we might call a "mosaic theory" of the Fourth Amendment, by which courts evaluate a collective sequence of government activity as an aggregated whole to consider whether the sequence amounts to a search. This Article considers the implications of a mosaic theory of the Fourth Amendment. It explores the choices and puzzles that …

Location Tracking And Digital Data: Can Carpenter Build A Stable Privacy Doctrine?, Evan H. Caminker

Articles

In Carpenter v United States, the Supreme Court struggled to modernize twentieth-century search and seizure precedents for the “Cyber Age.” Twice previously this decade the Court had tweaked Fourth Amendment doctrine to keep pace with advancing technology, requiring a search warrant before the government can either peruse the contents of a cell phone seized incident to arrest or use a GPS tracker to follow a car’s long-term movements.

The Quantum Of Suspicion Needed For An Exigent Circumstances Search, Kit Kinports

University of Michigan Journal of Law Reform

For decades, the United States Supreme Court opinions articulating the standard of exigency necessary to trigger the exigent circumstances exception to the Fourth Amendment’s warrant requirement have been maddeningly opaque and confusing. Some cases require probable cause, others call for reasonable suspicion, and still, others use undefined and unhelpful terms such as “reasonable to believe” in describing how exigent the situation must be to permit the police to proceed without a warrant. Not surprisingly, the conflicting signals coming from the Supreme Court have led to disagreement in the lower courts.

To resolve this conflict and provide guidance to law enforcement …

Fourth Amendment Textualism, Jeffrey Bellin

Michigan Law Review

The Fourth Amendment’s prohibition of “unreasonable searches” is one of the most storied constitutional commands. Yet after decades of Supreme Court jurisprudence, a coherent definition of the term “search” remains surprisingly elusive. Even the justices know they have a problem. Recent opinions only halfheartedly apply the controlling “reasonable expectation of privacy” test and its wildly unpopular cousin, “third-party doctrine,” with a few justices in open revolt.

These fissures hint at the Court’s openness to a new approach. Unfortunately, no viable alternatives appear on the horizon. The justices themselves offer little in the way of a replacement. And scholars’ proposals exhibit …

Forensic Border Searches After Carpenter Require Probable Cause And A Warrant, Christopher I. Pryby

Michigan Law Review

Under the border search doctrine, courts have upheld the federal government's practice of searching people and their possessions upon entry into or exit from the United States, without any requirement of suspicion, as reasonable under the Fourth Amendment. Since the advent of electronic devices with large storage capacities, courts have grappled with whether this definition of reasonableness continues to apply. So far, courts have consistently characterized “nonforensic” border inspections of electronic devices (for example, paging through photos on a phone) as “routine” searches that, like inspecting luggage brought across international lines, require no suspicion. But there is a circuit split …

Carpenter's Legacy: Limiting The Scope Of The Electronic Private Search Doctrine, Sarah A. Mezera

Michigan Law Review

One of the most significant challenges confronting courts and legal scholars in the twenty-first century is the application of Fourth Amendment doctrine to new technology. The circuit split over the application of the private search doctrine to electronic devices exemplifies how courts struggle to apply old doctrines to new circumstances. Some courts take the position that the old doctrine should apply consistently in the new context. Other courts have changed the scope of the old doctrine in order to account for the change in circumstances. The Supreme Court took the latter position in Carpenter v. United States and held that …

Fourth Amendment Constraints On The Technological Monitoring Of Convicted Sex Offenders, Ben A. Mcjunkin, J. J. Prescott

Articles

More than forty U.S. states currently track at least some of their convicted sex offenders using GPS devices. Many offenders will be monitored for life. The burdens and expense of living indefinitely under constant technological monitoring have been well documented, but most commentators have assumed that these burdens were of no constitutional moment because states have characterized such surveillance as ‘‘civil’’ in character—and courts have seemed to agree. In 2015, however, the Supreme Court decided in Grady v. North Carolina that attaching a GPS monitoring device to a person was a Fourth Amendment search, notwithstanding the ostensibly civil character of …

The Fourth Amendment Categorical Imperative, David Gray

Michigan Law Review Online

The vast majority of current Fourth Amendment doctrine is unfounded, incoherent, and dangerous. The culprit is the Supreme Court’s 1967 decision in Katz v. United States, which defines “search” as government conduct that violates subjectively manifested expectations of privacy “that society is prepared to recognize as ‘reasonable.’ ” This is pure applesauce. Nowhere will you find a standard dictionary that defines “search” in these terms. Neither will you hear a native speaker of the English language use “search” in this sense unless her mind has been polluted by a semester of studying criminal procedure. The Court created this definition …

Carpenter Privacy Case Vexes Justices, While Tech Giant Microsoft Battles Government In Second U.S. Supreme Court Privacy Case With International Implications, Richard J. Peltz-Steele

Faculty Publications

Fall 2017 saw a major privacy case with international implications reach the U.S. Supreme Court this term, Carpenter v. United States. Now a second such case pits the Government against Big Tech in United States v. Microsoft. Carpenter is a criminal case involving federal seizure of cell phone location data from service providers. Arising under the “reasonable grounds” provision of the Stored Communications Act (SCA), the case accentuates Americans’ lack of constitutional protection for personal data in third-party hands, in contrast with emerging global privacy norms. The second major privacy case headed for Supreme Court decision in 2018 also arises …

Search Incident To Probable Cause?: The Intersection Of Rawlings And Knowles, Marissa Perry

Michigan Law Review

The search incident to arrest exception authorizes an officer to search an arrestee’s person and his or her area of immediate control. This exception is based on two historical justifications: officer safety and evidence preservation. While much of search incident to arrest doctrine is settled, tension exists between two Supreme Court cases, Rawlings v. Kentucky and Knowles v. Iowa, and a crucial question remains unanswered: Must an officer decide to make an arrest prior to commencing a search? In Rawlings, the Supreme Court stated that a search may precede a formal arrest if the arrest follows quickly thereafter. In Knowles, …

Voluntary Disclosure Of Information As A Proposed Standard For The Fourth Amendment's Third-Party Doctrine, Margaret E. Twomey

Michigan Telecommunications & Technology Law Review

The third-party doctrine is a long-standing tenant of Fourth Amendment law that allows law enforcement officers to utilize information that was released to a third party without the probable cause required for a traditional search warrant. This has allowed law enforcement agents to use confidential informants, undercover agents, and access bank records of suspected criminals. However, in a digital age where exponentially more information is shared with Internet Service Providers, e-mail hosts, and social media “friends,” the traditional thirdparty doctrine ideas allow law enforcement officers access to a cache of personal information and data with a standard below probable cause. …

Supreme Court Jurisprudence Of The Personal In City Of Los Angeles V. Patel, Brian L. Owsley

Michigan Law Review First Impressions

Recently, the Supreme Court issued a 5-4 decision in City of Los Angeles v. Patel striking down a city ordinance that required hotel and motel owners to make their guest registries available to police officers whenever requested to do so. Although the Court’s opinion in Patel simply affirmed the Ninth Circuit’s finding that the ordinance was unconstitutional, the Court could have used Patel to readdress the third-party doctrine, which establishes that “a person has no legitimate expectation of privacy in information he voluntarily turns over to third parties.” Patel provided a vehicle for the Court to do so, particularly because …

No More Shortcuts: Protect Cell Site Location Data With A Warrant Requirement, Lauren E. Babst

Michigan Telecommunications & Technology Law Review

In modern society, the cell phone has become a virtual extension of most Americans, managing all kinds of personal and business matters. Modern cell tower technology allows cell service providers to accumulate a wealth of individuals’ location information while they use their cell phones, and such data is available for law enforcement to obtain without a warrant. This is problematic under the Fourth Amendment, which protects reasonable expectations of privacy. Under the Katz two-prong test, (1) individuals have an actual, subjective expectation of privacy in their cell site location data, and (2) society is prepared to acknowledge that expectation as …

The Court Loses Its Way With The Global Positioning System: United States V. Jones Retreats To The “Classic Trespassory Search”, George M. Dery Iii, Ryan Evaro

Michigan Journal of Race and Law

This Article analyzes United States v. Jones, in which the Supreme Court considered whether government placement of a global positioning system (GPS) device on a vehicle to follow a person’s movements constituted a Fourth Amendment “search.” The Jones Court ruled that two distinct definitions existed for a Fourth Amendment “search.” In addition to Katz v. United States’s reasonable-expectation-of-privacy standard, which the Court had used exclusively for over four decades, the Court recognized a second kind of search that it called a “classic trespassory search.” The second kind of search occurs when officials physically trespass or intrude upon a constitutionally protected …

The Mosaic Theory Of The Fourth Amendment, Orin S. Kerr

Michigan Law Review

In the Supreme Court's recent decision on GPS surveillance, United States v. Jones, five justices authored or joined concurring opinions that applied a new approach to interpreting Fourth Amendment protection. Before Jones, Fourth Amendment decisions had always evaluated each step of an investigation individually. Jones introduced what we might call a "mosaic theory" of the Fourth Amendment, by which courts evaluate a collective sequence of government activity as an aggregated whole to consider whether the sequence amounts to a search. This Article considers the implications of a mosaic theory of the Fourth Amendment. It explores the choices and puzzles that …

Signal Lost: Is A Gps Tracking System The Same As An Eyeball?, Eric Andrew Felleman

University of Michigan Journal of Law Reform Caveat

On November 8th, the Supreme Court will hear arguments in United States v. Jones. One of the primary issues in the case is whether law enforcement personnel violated Mr. Jones' Fourth Amendment right to freedom from unreasonable searches and seizures by using a GPS tracking device to monitor the location of his car without a warrant. The 7th Circuit and the 9th Circuit have both recently held that use of GPS tracking is not a search under the Fourth Amendment.

The Rise, Decline And Fall(?) Of Miranda, Yale Kamisar

Articles

There has been a good deal of talk lately to the effect that Miranda1 is dead or dying-or might as well be dead.2 Even liberals have indicated that the death of Miranda might not be a bad thing. This brings to mind a saying by G.K. Chesterton: "Don't ever take a fence down until you know the reason why it was put up."4

Bringing Clarity To Administrative Search Doctrine: Distinguishing Dragnets From Special Subpopulation Searches, Eve Brensike Primus

Articles

Anyone who has been stopped at a sobriety checkpoint, screened at an international border, scanned by a metal detector at an airport or government building, or drug tested for public employment has been subjected to an administrative search or seizure. Searches of public school students, government employees, and probationers are characterized as administrative, as are business inspections and-increasingly-wiretaps and other searches used in the gathering of national security intelligence. In other words, the government conducts thousands of administrative searches every day. None of these searches requires either probable cause or a search warrant. Instead, courts evaluating administrative searches need only …

Section 1: Moot Court: United States V. Jones, Institute Of Bill Of Rights Law, William & Mary Law School

Supreme Court Preview

No abstract provided.

Framing The Fourth, Tracey Maclin, Julia Mirabella

Michigan Law Review

Our knowledge of the Fourth Amendment's history was fundamentally transformed when William Cuddihy completed his Ph.D. dissertation in 1990. Cuddihy's study was the most comprehensive and detailed examination of the history of search and seizure law and essential reading for anyone interested in the amendment's history. At first, Cuddihy's work was little known: only a few people noticed when the highly regarded constitutional historian Leonard W. Levy stated that "Cuddihy is the best authority on the origins of the Fourth Amendment." Cuddihy finished his dissertation in 1990 and it remained unedited, unpublished, and largely unknown for several years-until Justice O'Connor …

How United States V. Jones Can Restore Our Faith In The Fourth Amendment, Erica Goldberg

Michigan Law Review First Impressions

United States v. Jones, issued in January of this year, is a landmark case that has the potential to restore a property-based interpretation of the Fourth Amendment to prominence. In 1967, the Supreme Court abandoned its previous Fourth Amendment framework, which had viewed the prohibition on unreasonable searches in light of property and trespass laws, and replaced it with a rule protecting the public’s reasonable expectations of privacy. Although the Court may have intended this reasonable expectations test to provide more protection than a test rooted in property law, the new test in fact made the Justices’ subjective views about …

Hanging On By A Thread: The Exclusionary Rule (Or What's Left Of It) Lives For Another Day, David A. Moran

Articles

Back when there was a Soviet Union, foreign intelligence officers would anxiously await the May Day parade in Moscow to see who would be standing next to the chairman of the Communist Party and who would be missing from the reviewing platform altogether. Since the Soviet government and the statecontrolled press published very little about what was really going on in the halls of state power, this was considered the most reliable way to determine who was in or out of favor and, by extension, how the domestic and foreign policies of the world's second most powerful country were likely …

Disentangling Administrative Searches, Eve Brensike Primus

Articles

Everyone who has been screened at an international border, scanned by an airport metal detector, or drug tested for public employment has been subjected to an administrative search. Since September 11th, the government has increasingly invoked the administrative search exception to justify more checkpoints, unprecedented subway searches, and extensive wiretaps. As science and technology advance, the frequency and scope of administrative searches will only expand. Formulating the boundaries and requirements of administrative search doctrine is therefore a matter of great importance. Yet the rules governing administrative searches are notoriously unclear. This Article seeks to refocus attention on administrative searches and …

Waiting For The Other Shoe: Hudson And The Precarious State Of Mapp, David A. Moran

Articles

I have no idea whether my death will be noted in the New York Times. But if it is, I fear the headline of my obituary will look something like: "Professor Dies; Lost Hudson v. Michigan' in Supreme Court, Leading to Abolition of Exclusionary Rule." The very existence of this Symposium panel shows, I think, that my fear is well-grounded. On the other hand, I am not quite as fearful that Hudson foreshadows the complete overruling of Mapp v. Ohio2 and Weeks v. United States3 as I was when I published an article just three months after the Hudson decision …

One Stop, No Stop, Two Stop, Terry Stop: Reasonable Suspicion And Pseudoephedrine Purchases By Suspected Methamphetamine Manufacturers, Andrew C. Goetz

Michigan Law Review

This Note attempts to inject some clarity into courts' reasonable suspicion calculus for cold medicine purchases. It argues that the key factor in analyzing such purchases is whether the purchaser or purchasers appear to be circumventing pseudoephedrine purchasing restrictions in order to obtain inordinately large quantities of pseudoephedrine. Part I provides a general background on the domestic manufacture of methamphetamine in small, clandestine laboratories. Part II then examines the interplay between outward innocence and reasonable suspicion under the Supreme Court's Fourth Amendment jurisprudence. Finally, Part III establishes a framework for identifying purchasing strategies that methamphetamine manufacturers commonly use to circumvent …

How Earl Warren's Twenty-Two Years In Law Enforcement Affected His Work As Chief Justice, Yale Kamisar

Articles

Before becoming governor of California, Earl Warren had spent his entire legal career, twenty-two years, in law enforcement. Professor Kamisar maintains that this experience significantly influenced Warren's work as a Supreme Court justice and gave him a unique perspective into police interrogation and other police practices. This article discusses some of Warren's experiences in law enforcement and searches for evidence of that experience in Warren's opinions. For example, when Warren was head of the Alameda County District Attorney's Office, he and his deputies not only relied on confessions in many homicide cases but also themselves interrogated homicide suspects. The seeds …

Verdugo In Cyberspace: Boundaries Of Fourth Amendment Rights For Foreign Nationals In Cybercrime Cases, Stewart M. Young

Michigan Telecommunications & Technology Law Review

This Comment examines the current legal framework governing Fourth Amendment rights for foreign nationals accused of committing crimes within the United States. Over the past three years, federal courts have tried several cases charging foreign nationals with committing crimes through the use of the Internet; these cases demonstrate a lack of clarity in the standard for warrant requirements regarding these searches. Utilizing these cases, this Comment creates a hypothetical case that presents the issues of Fourth Amendment rights for foreign nationals and seeks to determine how such a question should be answered. It advocates the clear application of United States …