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 …

Bending The Rules Of Evidence, Edward K. Cheng, G. Alexander Nunn, Julia Simon-Kerr

Faculty Scholarship

The evidence rules have well-established, standard textual meanings—meanings that evidence professors teach their law students every year. Yet, despite the rules’ clarity, courts misapply them across a wide array of cases: Judges allow past acts to bypass the propensity prohibition, squeeze hearsay into facially inapplicable exceptions, and poke holes in supposedly ironclad privileges. And that’s just the beginning.

The evidence literature sees these misapplications as mistakes by inept trial judges. This Article takes a very different view. These “mistakes” are often not mistakes at all, but rather instances in which courts are intentionally bending the rules of evidence. Codified evidentiary …

Environmental Evidence, Seema Kakade

Faculty Scholarship

The voices of impacted people are some of the most important when trying to make improvements to social justice in a variety of contexts, including, criminal policing, housing, and health care. After all, the people with on the ground experience know what is likely to truly effectuate change in their community, and what is not. Yet, such lived experience is also often significantly lacking and undermined in law and policy. People with lived experience tend to be seen as both community experts with valuable knowledge, as well as non-experts with little valuable knowledge. This Article explores the lived experience with …

Theorizing Corroboration, Maggie Wittlin

Faculty Scholarship

A child makes an out-of-court statement accusing an adult of abuse. That statement is important proof, but it also presents serious reliability concerns. When deciding whether it is sufficiently reliable to be admitted, should a court consider whether the child’s statement is corroborated—whether, for example, there is medical evidence of abuse? More broadly, should courts consider corroboration when deciding whether evidence is reliable enough to be admitted at trial? Judges, rule-makers, and scholars have taken significantly divergent approaches to this question and come to different conclusions.

This Article argues that there is a key problem with using corroboration to evaluate …

Of Bass Notes And Base Rates: Avoiding Mistaken Inferences About Copying, Christopher Buccafusco, Rebecca Tushnet

Faculty Scholarship

To prove copyright infringement, a plaintiff must convince a jury that the defendant copied from the plaintiff’s work rather than independently creating it. To prove copying, especially cases involving music, it’s common for plaintiffs and their experts to argue that the similarities between the parties’ creative works are so great that it is simply implausible that the defendant’s work was created without copying from the plaintiff’s work. Unfortunately, in its present form, the argument is mathematically illiterate: It assumes, without any underlying evidence, that the experts know or could reasonably estimate how likely it is that a song with similarity …

Is Disclosure And Certification Of The Use Of Generative Ai Really Necessary?, Maura R. Grossman, Paul W. Grimm, Daniel G. Brown

Faculty Scholarship

No abstract provided.

Optimal Standards Of Proof In Antitrust, Murat C. Mungan, Joshua Wright

Faculty Scholarship

Economic analyses of antitrust institutions have thus far focused predominantly on optimal penalties and the design of substantive legal rules, and have largely ignored the standard of proof used in trials as a policy tool in shaping behavior. This neglected tool can play a unique role in the antitrust context, where a given firm may have the choice to engage in exceptional anticompetitive or procompetitive behavior, or simply follow more conventional business practices. The standard of proof used in determining the legality of a firm’s conduct affects not only whether the firm chooses to engage in pro- versus anticompetitive behavior, …

The Living Rules Of Evidence, G. Alexander Nunn

Faculty Scholarship

The jurisprudential evolution of evidence law is dead. At least, that’s what we’re expected to believe. Ushered in on the wings of a growing positivist movement, the enactment of the Federal Rules of Evidence purported to quell judicial authority over evidence law. Instead, committees, conferences, and members of Congress would regulate any change to our evidentiary regime, thereby capturing the evolution of evidence law in a single, transparent code.

The codification of evidence law, though, has proven problematic. The arrival of the Federal Rules of Evidence has given rise to a historically anomalous era of relative stagnation in the doctrinal …

The Entity Attorney-Client Privilege Meets The Twenty-First Century: Rethinking Functional Equivalent Analysis In The Time Of A Nonemployee Workforce., Grace M. Giesel

Faculty Scholarship

Courts have struggled with whether an entity’s attorney-client privilege can protect communications between the entity’s lawyer and a nonemployee who has information the entity’s lawyer needs to best advise the entity. The nonemployee might be a former employee. But increasingly in recent times, the nonemployee is an individual who was never an entity employee. Corporations and other entities have incorporated nonemployees in their economic enterprises in all sorts of roles—roles employees may have held in the past. Many courts have accepted that the privilege can apply to communications involving former employees.

When faced with nonemployees who are not former employees, …

Proving Copying, Shyamkrishna Balganesh, Peter S. Menell

Faculty Scholarship

Proof that a defendant actually copied from a copyrighted work is a critical part of a claim for copyright infringement. Indeed, absent such copying, there is no infringement. The most common method of proving copying involves the use of circumstantial evidence, consisting of proof that a defendant had “access” to the protected work, and a showing of “similarities” between the copy and the protected work. In inferring copying from the combination of such evidence, courts have for many decades developed a framework known as the “inverse ratio rule,” which allows them to modulate the level of proof needed on access …

Law, Fact, And Procedural Justice, G. Alexander Nunn

Faculty Scholarship

The distinction between questions of law and questions of fact is deceptively complex. Although any first-year law student could properly classify those issues that fall at the polar ends of the law-fact continuum, the Supreme Court has itself acknowledged that the exact dividing line between law and fact—the point where legal inquiries end and factual ones begin—is “slippery,” “elusive,” and “vexing.” But identifying that line is crucially important. Whether an issue is deemed a question of law or a question of fact often influences the appointment of a courtroom decision maker, the scope of appellate review, the administration of certain …

Junk Science At Sentencing, Maneka Sinha

Faculty Scholarship

Junk science used in criminal trials has contributed to hundreds of wrongful convictions. But the problem is much worse than that. Junk science does not only harm criminal defendants who go to trial, but also the overwhelming majority of defendants—over ninety-five percent—who plead guilty, skip trial, and proceed straight to sentencing.

Scientific, technical, and other specialized evidence (“STS evidence”) is used regularly, and with increasing frequency, at sentencing. Despite this, Federal Rule of Evidence 702 and its state equivalents—which help filter unreliable STS evidence at trials—do not apply at the critical sentencing stage. In fact, at sentencing, no meaningful admissibility …

The Easterbrook Theorem: An Application To Digital Markets, Joshua D. Wright, Murat C. Mungan

Faculty Scholarship

The rise of large firms in the digital economy, including Amazon, Apple, Facebook, and Google, has rekindled the debate about monopolization law. There are proposals to make finding liability easier against alleged digital monopolists by relaxing substantive standards; to flip burdens of proof; and to overturn broad swaths of existing Supreme Court precedent, and even to condemn a law review article. Frank Easterbrook’s seminal 1984 article, The Limits of Antitrust, theorizes that Type I error costs are greater than Type II error costs in the antitrust context, a proposition that has been woven deeply into antitrust law by the Supreme …

Artificial Intelligence As Evidence, Paul W. Grimm, Maura R. Grossman, Gordon V. Cormack

Faculty Scholarship

This article explores issues that govern the admissibility of Artificial Intelligence (“AI”) applications in civil and criminal cases, from the perspective of a federal trial judge and two computer scientists, one of whom also is an experienced attorney. It provides a detailed yet intelligible discussion of what AI is and how it works, a history of its development, and a description of the wide variety of functions that it is designed to accomplish, stressing that AI applications are ubiquitous, both in the private and public sectors. Applications today include: health care, education, employment-related decision-making, finance, law enforcement, and the legal …

The Costs And Benefits Of Forensics, Brandon L. Garrett

Faculty Scholarship

Supreme Court Justice Louis Brandeis famously wrote that states can be laboratories for experimentation in law and policy. Disappointingly, however, the actual laboratories that states and local governments run are not a home for experimentation. We do not have adequate information about either the costs or the benefits of forensic testing or allocation of resources. Increased spending and expansion of crime laboratories has perversely accompanied growing backlogs. Poor quality control has resulted in a series of audits and even closures of crime laboratories. In response to these problems, however, some laboratories and some entire states have developed new approaches toward …

Discrete Rent-Seeking Games With An Application To Evidence Production, Giuseppe Dari-Mattiacci, Lewis A. Kornhauser

Faculty Scholarship

Evidence production at trial, the accumulation of patents in a technological race, and lobbying are contests that often involve strategic choices over a discrete set of options. The literature has primarily focused on games with continuous effort choices. We fill this gap by studying a rent-seeking game with discrete effort choices and, for a significant class of games, derive a transformation rule that allows one to find the equilibrium of the discrete game from the equilibrium of the continuous game, which is much simpler to identify. We also discuss the limits of this approach and how well the continuous game …

Harassment, Workplace Culture, And The Power And Limits Of Law, Suzanne B. Goldberg

Faculty Scholarship

This article asks why it remains so difficult for employers to prevent and respond effectively to harassment, especially sexual harassment, and identifies promising points for legal intervention. It is sobering to consider social-science evidence of the myriad barriers to reporting sexual harassment – from the individual-level and interpersonal to those rooted in society at large. Most of these are out of reach for an employer but workplace culture stands out as a significant arena where employers have influence on whether harassment and other discriminatory behaviors are likely to thrive. Yet employers typically make choices in this area with attention to …

Anticipating Venezuela's Debt Crisis: Hidden Holdouts And The Problem Of Pricing Collective Action Clauses, Robert E. Scott, Stephen J. Choi, Mitu Gulati

Faculty Scholarship

A creditor who asks for stronger enforcement rights upon its debtor’s default will rationally accept a lower interest rate reflecting the greater expected recovery the exercise of those rights provides. Over a dozen studies, however, have failed to document this basic relationship in the context of the collective action clause, a key provision in sovereign bonds. We conjecture that this failure is because enforcing the rights in question requires collective decision-making among anonymous creditors with different interests, impeding market predictions regarding future price effects. The pricing of rights that require collective enforcement thus turns on whether the market observes an …

Conference On Best Practices For Managing Daubert Questions, Daniel J. Capra, David G. Campbell, Debra A. Livingston, James P. Bassett, Shelly Dick, Traci L. Lovitt, Thomas Marten, Kathryn N. Nester, Thomas D. Schroeder, Elizabeth J. Shapiro, Timothy Lau, Vince Chhabria, John Z. Lee, William H. Orrick Iii, Edmund A. Sargus Jr., Sarah A. Vance, Edward K. Cheng

Faculty Scholarship

This article is a transcript of the Philip D. Reed Lecture Series Conference on Best Practices for Managing Daubert Questions, held on October 25, 2019, at Vanderbilt Law School under the sponsorship of the Judicial Conference Advisory Committee on Evidence Rules. The transcript has been lightly edited and represents the panelists’ individual views only and in no way reflects those of their affiliated firms, organizations, law schools, or the judiciary.

Beyond The Witness: Bringing A Process Perspective To Modern Evidence Law, Edward K. Cheng, G. Alexander Nunn

Faculty Scholarship

The focal point of the modern trial is the witness. Witnesses are the source of observations, lay and expert opinions, authentication, as well as the conduit through which documentary, physical, and scientific evidence is introduced. Evidence law therefore unsurprisingly concentrates on – or perhaps obsesses over – witnesses. In this Article, we argue that this witness-centered perspective is antiquated and counterproductive. As a historical matter, focusing on witnesses may have made sense when most evidence was the product of individual observation and action. But the modern world frequently features evidence produced through standardized, objective, and even mechanical processes that largely …

The Disappointing History Of Science In The Courtroom: Frye, Daubert, And The Ongoing Crisis Of “Junk Science” In Criminal Trials, Jim Hilbert

Faculty Scholarship

Twenty-five years ago, the Supreme Court decided one of the most important cases concerning the use of science in courtrooms. In Daubert v. Merrell Dow Pharmaceuticals , the Court addressed widespread concerns that courts were admitting unreliable scientific evidence. In addition, lower courts lacked clarity on the status of the previous landmark case for courtroom science, Frye v. United States. In the years leading up to the Daubert decision, policy-makers and legal observers sounded the alarm about the rise in the use of "junk science" by so-called expert witnesses. Some critics went so far as to suggest that American businesses …

Immigration Unilateralism And American Ethnonationalism, Robert L. Tsai

Faculty Scholarship

This paper arose from an invited symposium on "Democracy in America: The Promise and the Perils," held at Loyola University Chicago School of Law in Spring 2019. The essay places the Trump administration’s immigration and refugee policy in the context of a resurgent ethnonationalist movement in America as well as the constitutional politics of the past. In particular, it argues that Trumpism’s suspicion of foreigners who are Hispanic or Muslim, its move toward indefinite detention and separation of families, and its disdain for so-called “chain migration” are best understood as part of an assault on the political settlement of the …

Self-Policing: Dissemination And Adoption Of Police Eyewitness Policies In Virginia, Brandon L. Garrett

Faculty Scholarship

Professional policing organizations emphasize the importance of the adoption of sound police policies and procedures, but traditionally doing so has been left to individual agencies. State and local government typically does not closely regulate police, and neither federal constitutional rulings nor state law typically sets out in any detail the practices that police should follow. Thus, law enforcement agencies must themselves draft and disseminate policy. This paper presents the results of studies used to assess the adoption of eyewitness identification policies by law enforcement agencies in Virginia. Policymakers were focused on this problem because Virginia experienced a series of DNA …

The Inability To Self-Diagnose Bias, Christopher Robertson

Faculty Scholarship

The Constitution guarantees litigants an 'impartial' jury, one that bases its judgment on the evidence presented in the courtroom, untainted by affiliations with the parties, racial animus, or media coverage that may include inadmissible facts, a one-sided portrayal, and naked opinion. Problems of juror bias arise in almost every trial – state and federal, civil and criminal - and the problem is most severe in the highest profile cases, where the need for accuracy and legitimacy in outcomes is most salient.

The Supreme Court has instructed courts to use a simple method to determine whether jurors are biased: ask them. …

Trade Openness And Antitrust Law, Anu Bradford, Adam S. Chilton

Faculty Scholarship

Openness to international trade and adoption of antitrust laws can both curb anti-competitive behavior. But scholars have long debated the relationship between the two. Some argue that greater trade openness makes antitrust unnecessary, while others contend that antitrust laws are still needed to realize the benefits of trade liberalization. Data limitations have made this debate largely theoretical to date. We study the relationship between trade and antitrust empirically using new data on antitrust laws and enforcement activities. We find that trade openness and stringency of antitrust laws are positively correlated from 1950 to 2010 overall, but the positive correlation disappears …

Expert Witness Malpractice, Michael Flynn

Faculty Scholarship

No abstract provided.

Introduction: Symposium On “Forensics, Statistics, And Law”, Brandon L. Garrett

Faculty Scholarship

No abstract provided.

Challenges Facing Judges Regarding Expert Evidence In Criminal Cases, Paul W. Grimm

Faculty Scholarship

No abstract provided.

A ‘Bad Rap’: R. V. Skeete And The Admissibility Of Rap Lyric Evidence, Ngozi Okidegbe

Faculty Scholarship

The use of accused-authored rap lyric evidence is no longer rare in Canadian criminal proceedings. Adduced by Crown prosecutors, rap lyrics written or co-written by an accused are increasingly used in criminal trials as evidence of the accused’s intent, knowledge, motive, identity, or confession to the commission of the specific offence charged. The practice is not without controversy.¹ The introduction of an accused’s artistic work in the form of rap lyrics at trial engages trial fairness concerns. Without a keen awareness of the social and cultural context that produces rap music, trial actors risk inflating their probative value and …

Honesty Without Truth: Lies, Accuracy, And The Criminal Justice Process, Lisa Kern Griffin

Faculty Scholarship

Focusing on “lying” is a natural response to uncertainty but too narrow of a concern. Honesty and truth are not the same thing and conflating them can actually inhibit accuracy. In several settings across investigations and trials, the criminal justice system elevates compliant statements, misguided beliefs, and confident opinions while excluding more complex evidence. Error often results. Some interrogation techniques, for example, privilege cooperation over information. Those interactions can yield incomplete or false statements, confessions, and even guilty pleas. Because of the impeachment rules that purportedly prevent perjury, the most knowledgeable witnesses may be precluded from taking the stand. The …