Criminology and Criminal Justice Commons^™

The Brady Materiality Standard, Brandon L. Garrett, Adam M. Gershowitz

Faculty Scholarship

The Brady doctrine requires prosecutors to disclose all favorable and material evidence to the defense. To effectuate that rule, the U.S. Supreme Court has defined materiality as a “reasonable probability” that the evidence would have affected the outcome at trial. But apart from that definition, the Court has resisted offering any further guidance to lower courts. While far too little is known about how Brady materiality claims are actually adjudicated, there is strong evidence that courts often reject Brady claims involving withheld evidence on the grounds that the evidence was not significant enough to be material.

To examine how Brady …

Understanding Processes That Produce Racial Disparities In California Death Sentences: A Review Of The Literature, Catherine M. Grosso, Michael Laurence, Jeffrey A. Fagan

Faculty Scholarship

A robust and extensive body of empirical research, and a rich historical record, documents a recurring and pervasive influence of race in the application of California’s death penalty. This article reviews the legal and social science research to document multiple paths through which institutions and processes produce these racial disparities over many decisions in many cases across four decades. The article reviews relevant literature by decision, institution, or actor and presents key findings. This includes documenting the history of the broad statutory design of the California capital punishment statue. The review also considers research on policing, including the influence of …

Racial Disparities In Crime-Based Removal Proceedings, Emily Ryo, Ian Peacock, Weston Ley, Christopher Levesque

Faculty Scholarship

Whether and to what extent racial minorities experience harsher treatment or face worse outcomes in court are questions of fundamental importance for any justice system. Questions of racial inequality are especially salient in the context of removal proceedings that are triggered by immigrants’ criminal history. Many individuals in crime-based removal proceedings are immigrants of color who face a host of legal disadvantages that are tantamount to double penalties for the same crime for which they have already been punished through the criminal justice system. This Article offers, for the first time, systematic empirical analyses of crime-based removal proceedings decided between …

Compensating Exonerees In The United States, Brandon L. Garrett, Luke Mears

Faculty Scholarship

No abstract provided.

Judging Firearms Evidence, Brandon L. Garrett, Eric Tucker, Nicholas Scurich

Faculty Scholarship

Firearms violence results in hundreds of thousands of criminal investigations each year. To try to identify a culprit, firearms examiners seek to link fired shell casings or bullets from crime scene evidence to a particular firearm. The underlying assumption is that firearms impart unique marks on bullets and cartridge cases, and that trained examiners can identify these marks to determine which were fired by the same gun. For over a hundred years, firearms examiners have testified that they can conclusively identify the source of a bullet or cartridge case. In recent years, however, research scientists have called into question the …

The Right To A Glass Box: Rethinking The Use Of Artificial Intelligence In Criminal Justice, Brandon L. Garrett, Cynthia Rudin

Faculty Scholarship

Artificial intelligence (“AI”) increasingly is used to make important decisions that affect individuals and society. As governments and corporations use AI more pervasively, one of the most troubling trends is that developers so often design it to be a “black box.” Designers create AI models too complex for people to understand or they conceal how AI functions. Policymakers and the public increasingly sound alarms about black box AI. A particularly pressing area of concern has been criminal cases, in which a person’s life, liberty, and public safety can be at stake. In the United States and globally, despite concerns that …

Evaluating Pre-Trial Programs Using Interpretable Machine Learning Matching Algorithms For Causal Inference, Travis Seale-Carlisle, Saksham Jain, Courtney Lee, Caroline Levenson, Swathi Ramprasad, Brandon Garrett, Sudeepa Roy, Cynthia Rudin, Alexander Volfovsky

Faculty Scholarship

After a person is arrested and charged with a crime, they may be released on bail and required to participate in a community supervision program while awaiting trial. These ‘pretrial programs’ are common throughout the United States, but very little research has demonstrated their effectiveness. Researchers have emphasized the need for more rigorous program evaluation methods, which we introduce in this article. We describe a program evaluation pipeline that uses recent interpretable machine learning techniques for observational causal inference, and demonstrate these techniques in a study of a pre-trial program in Durham, North Carolina. Our findings show no evidence that …

False Accuracy In Criminal Trials: The Limits And Costs Of Cross Examination, Lisa Kern Griffin

Faculty Scholarship

According to the popular culture of criminal trials, skillful cross-examination can reveal the whole “truth” of what happened. In a climactic scene, defense counsel will expose a lying accuser, clear up the statements of a confused eyewitness, or surface the incentives and biases in testimony. Constitutional precedents, evidence theory, and trial procedures all reflect a similar aspiration—that cross-examination performs lie detection and thereby helps to produce accurate outcomes. Although conceptualized as a protection for defendants, cross-examination imposes some unexplored costs on them. Because it focuses on the physical presence of a witness, the current law of confrontation suggests that an …

The Brady Database, Brandon L. Garrett, Adam M. Gershowitz, Jennifer Teitcher

Faculty Scholarship

The Supreme Court’s landmark ruling in Brady v. Maryland turns sixty this year. The Brady doctrine, which requires the government to disclose favorable and material evidence to the defendant, is one of the most frequently litigated criminal procedure issues. Yet, despite decades of Brady cases in federal and state courts, we still know relatively little about how Brady claims are litigated, adjudicated, and what such claims can tell us about the criminal justice system writ large. Scholars are in the dark about how often Brady violations occur, whether it is primarily the fault of prosecutors or the police, whether violations …

Liberty, Safety, And Misdemeanor Bail, Brandon L. Garrett, Sandra Guerra Thompson, Dottie Carmichael, David Shi, Songman Kang

Faculty Scholarship

The highest volume of cases in the U.S. criminal system are misdemeanors, and every day, hundreds of thousands of people are detained pretrial in such low-level cases. In policy and in politics, pretrial rules have swung between a focus on protecting constitutional rights and the public safety dangers posed by releasing arrestees. The Supreme Court’s ruling in United States v. Salerno sought to promote a balance between protecting individual due process rights and public safety interests. A central constitutional and pressing policy question is what trade-off exists between pretrial liberty and reoffending. The highest profile jurisdiction to examine that question …

Hydra: Lessons From The World's Largest Darknet Market, Priyanka Goonetilleke, Alex Knorre, Artem Kuriksha

Faculty Scholarship

Research Summary

We present a comprehensive description of Hydra, the largest darknet marketplace in the world until its shutdown in April 2022. We document the main features of Hydra such as dead-drop delivery, feedback and reputation system, escrow, and dispute resolution. Using data scraped from the platform, we quantitatively examine the scale and the structure of the marketplace. We find that it has been highly competitive, geographically covering at least 69% of the Russian population and trading a wide variety of drugs, while also allowing the wholesale trade of drugs and precursors. The dead-drop delivery system used on Hydra was …

Error Aversions And Due Process, Brandon L. Garrett, Gregory Mitchell

Faculty Scholarship

William Blackstone famously expressed the view that convicting the innocent constitutes a much more serious error than acquitting the guilty. This view is the cornerstone of due process protections for those accused of crimes, giving rise to the presumption of innocence and the high burden of proof required for criminal convictions. While most legal elites share Blackstone’s view, the citizen-jurors tasked with making due process protections a reality do not share the law’s preference for false acquittals over false convictions.

Across multiple national surveys, sampling more than 10,000 people, we find that a majority of Americans views false acquittals and …

Judging Firearms Evidence And The Rule 702 Amendments, Brandon Garrett, Nicholas Scurich, Eric Tucker, Hannah Bloom

Faculty Scholarship

No abstract provided.

Bail And Mental Illness, Samuel Wiseman

Faculty Scholarship

In many parts of the United States, the bail system is strikingly unfair, imposing burdensome, and often unmeetable, financial conditions on pretrial liberty even for low-risk defendants. Reforms that reduce or eliminate cash bail and lower pretrial detention rates have made progress in recent years, but now face growing opposition even in generally progressive jurisdictions such as San Francisco and New York City. One source of this opposition is rising concern about crime—particularly crime associated with the unhoused, who disproportionately suffer from mental illness, including substance abuse disorder. This is not a coincidence, as one effect of a cash-bail system, …

Andragogy: The Common Thread In The Teaching Of Adults In Colleges Of Education, Criminal Justice, And Health Management, Grant J. Shostak, Larry Acker, Vanessa Vandergraaf

Faculty Scholarship

The Covid-19 pandemic has brought dramatic changes to higher education. Students and educators face challenges never anticipated, including switching classes from on-ground to online and back again, mental fatigue, stress, and burnout. Faculty across disciplines may turn to Andragogy to best teach college students to inform their teaching practices. This paper demonstrates how professors from education, criminal justice, and healthcare management have used andragogical techniques in their classrooms.

Models Of Bail Reform, Brandon L. Garrett

Faculty Scholarship

Bail reform is an urgent topic in the United States and internationally, but what constitutes reform and how to accomplish reform goals is contested. Jails are a modern epicenter of incarceration, with a stunning growth in American jail populations over the past four decades despite declines in both arrests and crime. As many as sixty percent of the half million people currently in jails have not been convicted but are instead detained pretrial. Prior waves of bail reform produced a system largely reliant on secured bonds, which require up-front cash payments to avoid jail time before trial. More recent reform …

Monitoring The Misdemeanor Bail Reform Consent Decree In Harris County, Texas, Brandon L. Garrett, Sandra Guerra Thompson

Faculty Scholarship

No abstract provided.

Life Without Parole Sentencing In North Carolina, Brandon L. Garrett, Travis M. Seale-Carlisle, Karima Modjadidi, Kristen M. Renberg

Faculty Scholarship

What explains the puzzle of life without parole (LWOP) sentencing in the United States? In the past two decades, LWOP sentences have reached record highs, with over 50,000 prisoners serving LWOP. Yet during this same period, homicide rates have steadily declined. The U.S. Supreme Court has limited the use of juvenile LWOP in Eighth Amendment rulings. Further, death sentences have steeply declined, reaching record lows. Although research has examined drivers of incarceration patterns for certain sentences, there has been little research on LWOP imposition. To shed light on what might explain the sudden rise of LWOP, we examine characteristics of …

Of Protest And Property: An Essay In Pursuit Of Justice For Breonna Taylor, H. Timothy Lovelace Jr.

Faculty Scholarship

In March 2020, Louisville police officers fatally shot Breanna Taylor in her apartment while executing a no-knock warrant. There was great outrage over the killing of the innocent woman, and Kentucky Attorney General Daniel Cameron led an investigation of the officer-involved shooting.

Activists protested in Louisville after Taylor's killing, and when Cameron's investigation appeared stalled, these activists even conducted a sit-in on Cameron's front lawn. They demanded immediate justice for Taylor. Cameron sharply responded, lecturing the activists on how to achieve justice. He contended that neither trespassing on private property nor escalation in tactics could advance the cause of justice. …

Law Enforcement Organization Relationships With Prosecutors, Daniel C. Richman

Faculty Scholarship

Although police departments and prosecutor’s o􀁽ces must closely collaborate, their organizational roles and networks, and the distinctive perspectives of their personnel, will inevitably and regularly lead to forceful dialogue and disruptive friction. Such friction can occasionally undermine thoughtful deliberation about public safety, the rule of law, and community values. Viewed more broadly, however, these interactions promote just such deliberation, which will become even healthier when the dialogue breaks out of the closed world of criminal justice bureaucracies and includes the public to which these bureaucracies are ultimately responsible. This chapter explores such organizational interactions and their value.

Judging Risk, Brandon L. Garrett, John Monahan

Faculty Scholarship

Risk assessment plays an increasingly pervasive role in criminal justice in the United States at all stages of the process, from policing, to pre-trial, sentencing, corrections, and during parole. As efforts to reduce incarceration have led to adoption of risk-assessment tools, critics have begun to ask whether various instruments in use are valid and whether they might reinforce rather than reduce bias in criminal justice outcomes. Such work has neglected how decisionmakers use risk-assessment in practice. In this Article, we examine in detail the judging of risk assessment and we study why decisionmakers so often fail to consistently use such …

Undeliverable: Suspended Driver's Licenses And The Problem Of Notice, Brandon L. Garrett, Karima Modjadidi, William Crozier

Faculty Scholarship

In North Carolina, one in seven adult drivers currently has a suspended license for nondriving related reasons. As in many other states, in North Carolina, driver’s licenses are commonly suspended, for reasons unrelated to safety, when a person fails to appear in court in response to notice of a traffic court date or fails to pay traffic fines. Notices of traffic court dates are sent by mail, typically to the address on record at the Department of Motor Vehicles, as are subsequent notices that the consequence for nonappearance will be a driver’s license suspension. To better understand the effects of …

Justice In Forensic Algorithms, Brandon L. Garrett

Faculty Scholarship

No abstract provided.

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 …

The Wandering Officer, Ben Grunwald, John Rappaport

Faculty Scholarship

“Wandering officers” are law-enforcement officers fired by one department, sometimes for serious misconduct, who then find work at another agency. Policing experts hold disparate views about the extent and character of the wandering-officer phenomenon. Some insist that wandering officers are everywhere—possibly increasingly so—and that they’re dangerous. Others, however, maintain that critics cherry-pick rare and egregious anecdotes that distort broader realities. In the absence of systematic data, we simply do not know how common wandering officers are or how much of a threat they pose, nor can we know whether and how to address the issue through policy reform.

In this …

The Transparency Of Jail Data, William E. Crozier, Brandon L. Garrett, Arvind Krishnamurthy

Faculty Scholarship

Across the country, pretrial policies and practices concerning the use of cash bail are in flux, but it is not readily possible for members of the public to assess whether or how those changes in policy and practice are affecting outcomes. A range of actors affect the jail population, including: law enforcement who make arrest decisions, magistrates and judges who rule at hearings on pretrial conditions and may modify such conditions, prosecutors and defense lawyers who litigate at hearings, pretrial-service providers who assist in evaluation and supervision of persons detained pretrial, and the custodian of the jail who supervises facilities. …

Genetic Evidence, Maoa, And State V. Yepez, Nita A. Farahany, Roderick T. Kennedy, Brandon L. Garrett

Faculty Scholarship

No abstract provided.

Changing The Law To Change Policing: First Steps, Barry Friedman, Brandon L. Garrett, Rachel Harmon, Christy E. Lopez, Tracey L. Meares, Maria Ponomarenko, Christopher Slobogin, Tom R. Tyler

Faculty Scholarship

Recent events have brought to the fore longstanding concerns about the nature of policing in the United States and how it undermines racial equity. As an institution, policing needs significant reconsideration. It is time to rethink the structure and governance of policing. It is also time to engage in a deeper conversation about the meaning of public safety. In the meantime, however, the following is a list of urgently-needed reforms, compiled by a small group of law school faculty, each of whom runs or is associated with an academic center devoted to policing and the criminal justice system. The reforms …

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 …

Federal Criminal Risk Assessment, Brandon L. Garrett

Faculty Scholarship

Risk assessments are a common feature of federal decisionmaking, including across a range of administrative agencies. However, in federal criminal law, risk assessments have been only haltingly adopted. Decisions regarding bail, sentences, and prison programming have largely been made based on official discretion. Risk assessment instruments are currently used in federal courts pretrial and postconviction, and in federal prisons regarding security levels and reentry, with highly uneven results to date. The adoption of the First Step Act, which has the ambition to transform the federal prison system through the use of risk instruments, has the potential to introduce a more …