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False Accuracy In Criminal Trials: The Limits And Costs Of Cross Examination, Lisa Kern Griffin Jan 2024

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 Costs And Benefits Of Forensics, Brandon L. Garrett Jan 2020

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 …


Self-Policing: Dissemination And Adoption Of Police Eyewitness Policies In Virginia, Brandon L. Garrett Jan 2019

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 …


Honesty Without Truth: Lies, Accuracy, And The Criminal Justice Process, Lisa Kern Griffin Jan 2018

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 …


Introduction: Symposium On “Forensics, Statistics, And Law”, Brandon L. Garrett Jan 2018

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

Faculty Scholarship

No abstract provided.


Dna And Distrust, Kerry Abrams, Brandon L. Garrett Jan 2016

Dna And Distrust, Kerry Abrams, Brandon L. Garrett

Faculty Scholarship

Over the past three decades, government regulation and funding of DNA testing has reshaped the use of genetic evidence across various fields, including criminal law, family law, and employment law. Courts have struggled with questions of when and whether to treat genetic evidence as implicating individual rights, policy trade-offs, or federalism problems. We identify two modes of genetic testing: identification testing, used to establish a person’s identity, and predictive testing, which seeks to predict outcomes for a person. Judges and lawmakers have often drawn a bright line at predictive testing, while allowing uninhibited identity testing. The U.S. Supreme Court in …


Decision-Making In The Dark: How Pre-Trial Errors Change The Narrative In Criminal Jury Trials, Kara Mackillop, Neil Vidmar Jan 2015

Decision-Making In The Dark: How Pre-Trial Errors Change The Narrative In Criminal Jury Trials, Kara Mackillop, Neil Vidmar

Faculty Scholarship

Over the past decade and a half, a great deal of attention has rightfully been given to the issue of wrongful convictions. In 2003, Jim Dwyer, Peter Neufeld and Barry Scheck published Actual Innocence, an eyeopening treatise on the reality of wrongful convictions in the United States. In the years since, more than 1400 innocent persons have been exonerated, and a very diverse research community of attorneys, academics, social scientists, and activists has developed in response to the realization offlaws in our criminal justice system. In 2012, Brandon Garrett's Convicting the Innocent quantitatively evaluated the first 250 DNA exonerations and …