Evidence Commons^™

Trawling Dna Databases For Partial Matches: What Is The Fbi Afraid Of?, David H. Kaye

Faculty Scholarship

DNA evidence is often presented as the “gold standard” for forensic science. But this was not always the case. For years, eminent scientists complained that the estimates of the tiny frequencies of DNA types were unfounded. It took scores of research papers, dozens of judicial opinions, and two committees of the National Academy of Sciences to resolve the dispute by the mid-1990s. Since 2000, however, reports have surfaced of shocking numbers of “partial matches” among samples within large DNA databases, and some scientists have complained that the infinitesimal figures used in court to estimate the probability of a random match …

Rounding Up The Usual Suspects: A Logical And Legal Analysis Of Dna Trawling Cases, David H. Kaye

Faculty Scholarship

Courts are beginning to confront a problem that has divided the scientific community - whether identifying a defendant by fishing through a database of DNA types to find a match to a crime-scene sample reduces the significance of a match. For years, the problem seemed academic. Now that the U.S. has more than five million DNA profiles from convicted offenders and suspects in a national, computer-searchable database, the question has assumed more urgency. Increasingly, individuals are being charged with crimes as a result of a match between their recorded profile and the DNA from a victim or scene of a …

Back To The Future: Lorraine V. Markel American Insurance Co. And New Findings On The Admissibility Of Electronically Stored Information, Paul W. Grimm, Michael V. Ziccardi, Alexander W. Major

Faculty Scholarship

No abstract provided.

Torts And Innovation, Gideon Parchomovsky, Alex Stein

Michigan Law Review

This Essay exposes and analyzes a hitherto overlooked cost of tort law: its adverse effect on innovation. Tort liability for negligence, defective products, and medical malpractice is determined by reference to custom. We demonstrate that courts' reliance on custom and conventional technologies as the benchmark of liability chills innovation and distorts its path. Specifically, recourse to custom taxes innovators and subsidizes replicators of conventional technologies. We explore the causes and consequences of this phenomenon and propose two possible ways to modify tort law in order to make it more welcoming to innovation.

Science On Trial, Valerie P. Hans

Cornell Law Faculty Publications

The increasing complexity of both criminal and civil jury trials raises a host of issues for lawyers and judges. For the litigator, the first question is whether a jury can be trusted with a case that turns on highly technical evidence. For the trial judge, there are decisions about the admissibility of expert testimony, whether it is based on sound science, and whether a jury is likely to be misled by scientific claims. Should the judge permit jury innovations such as note taking, question asking, and juror discussions of evidence during the trial, hoping to increase jury comprehension of the …

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

Scholarly Articles in Law Reviews & Journals

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 …

Case Comment - People V. Nelson: A Tale Of Two Statistics, David H. Kaye

Faculty Scholarship

In recent years, defendants who were identified as a result of a search through a database of DNA profiles have argued that the probability that a randomly selected person would match a crime-scene stain overstates the probative value of the match. The statistical literature is divided, with most statisticians who have written on the subject rejecting this claim. In People v. Nelson, the Supreme Court of California held that when the random-match probability is so small as to make it exceedingly unlikely that any unrelated individual has the incriminating DNA profile, this statistic is admissible in a database-search case. …

Statistics In The Jury Box: How Jurors Respond To Mitochondrial Dna Match Probabilities, David H. Kaye, Valerie P. Hans, B. Michael Dann, Erin J. Farley, Stephanie Albertson

Cornell Law Faculty Publications

This article describes parts of an unusually realistic experiment on the comprehension of expert testimony on mitochondrial DNA (mtDNA) sequencing in a criminal trial for robbery. Specifically, we examine how jurors who responded to summonses for jury duty evaluated portions of videotaped testimony involving probabilities and statistics. Although some jurors showed susceptibility to classic fallacies in interpreting conditional probabilities, the jurors as a whole were not overwhelmed by a 99.98% exclusion probability that the prosecution presented. Cognitive errors favoring the defense were more prevalent than ones favoring the prosecution. These findings lend scant support to the legal argument that mtDNA …

Independent Judicial Research In The "Daubert" Age, Edward K. Cheng

Vanderbilt Law School Faculty Publications

The Supreme Court's Daubert trilogy places judges in the unenviable position of assessing the reliability of often unfamiliar and complex scientific expert testimony. Over the past decade, scholars have therefore explored various ways of helping judges with their new gatekeeping responsibilities. Unfortunately, the two dominant approaches, which focus on doctrinal tests and external assistance mechanisms, have been largely ineffective. This Article advocates for a neglected but important method for improving scientific decision making-independent judicial research. It argues that judges facing unfamiliar and complex scientific admissibility decisions can and should engage in independent library research to better educate themselves about the …

Everything New Is Old Again: Brain Fingerprinting And Evidentiary Analogy, Alexandra J. Roberts

Law Faculty Scholarship

Brain Fingerprinting uses electroencephalography to ascertain the presence or absence of information in a subject's brain based on his reaction to particular stimuli. As a new forensic tool, Brain Fingerprinting technology stands poised to exert a tremendous impact on the presentation and outcome of selected legal cases in the near future. It also provides a fertile case study to examine the role of analogical reasoning in the process by which lawyers, experts, judges, and the media influence how factjinders perceive and evaluate unfamiliar types of proof When juridical metaphor disguises, distorts, or destroys ideas, it ceases to serve as an …

Please, Let's Bury The Junk: The Codis Loci And The Revelation Of Private Information, David H. Kaye

Faculty Scholarship

This Northwestern University Law Review Colloquy paper describes the four possible ways in which genetic loci could possess predictive or diagnostic value with regard to diseases and explains why these mechanisms have not led, and probably cannot lead, to useful screening tests with the Convicted Offender DNA Index System (CODIS) profiles in national, state, and local databases. It then considers the phenotypes and familial relationships that the CODIS STRs can be used to identify. The profiles carry limited information about an individual's race and familial relationships, and the article places the resulting privacy issues in perspective. Finally, the paper comments …

Prosecutors, Ethics, And Expert Witnesses, Paul C. Giannelli, Kevin C. Mcmunigal

Faculty Publications

Commentators who have examined the DNA exonerations have noted the disturbing role that prosecutors have played in these wrongful convictions. Another significant contributor to these miscarriages of justice is the misuse of expert testimony, a third of the cases according to some sources. This Article examines the intersection of these two factors - the prosecutor's role in using and presenting expert testimony.

Prosecutorial misconduct may occur during most stages of a trial, beginning with the selection of witnesses, including the improper "shopping" for experts. Additional abuses occur when prosecutors fail to abide by rules governing the pretrial disclosure of scientific …

The Science Of Dna Identification: From The Laboratory To The Courtroom (And Beyond), David H. Kaye

Faculty Scholarship

This article focuses on sequences of DNA base-pairs, which are becoming increasingly important in the field of law. These DNA sequences are used by forensic scientists to discover evidence such as blood stains, semen, saliva, and hair, and has become highly useful in the courtroom with regard to exonerating the innocent and convicting the guilty. Part I of the article examines how courts may (or may not) admit DNA evidence in court through four phases: uncritical acceptance; serious challenges to analytical methods and statistical interpretation of the results; renewed acceptance of DNA evidence; and acceptance of advance systems of DNA …

Judges, Juries, And Scientific Evidence, Valerie P. Hans

Cornell Law Faculty Publications

The rise in scientific evidence offered in American jury trials, along with court rulings thrusting judges into the business of assessing the soundness of scientific evidence, have produced challenges for judge and jury alike. Many judges have taken up the duty of becoming “amateur scientists.” But what about juries? Surely they too could benefit from assistance as they attempt to master and apply complex testimony about scientific matters during the course of a trial. Concerns about the jury’s ability to understand, critically evaluate, and employ scientific evidence in deciding complex trials have led to many suggestions for reform.

This article …

Can Jury Trial Innovations Improve Juror Understanding Of Dna Evidence?, B. Michael Dann, Valerie P. Hans, David H. Kaye

Cornell Law Faculty Publications

A single spot of blood on a pink windowsill will tell investigators who broke a windowpane, turned a lock, and kidnapped 2-year-old Molly Evans from her bedroom in the middle of the night. An expert witness will testify that the DNA profile of the blood evidence recovered from the windowsill was entered into CODIS, an electronic database of DNA profiles. That process yielded a “hit,” identifying the defendant as the most likely source of the blood inside Molly’s room.

But will jurors be able to understand the expert’s intricate analysis and use it to reach a verdict? And what—if any—steps …

A Complete Property Right Amendment, John H. Ryskamp

ExpressO

The trend of the eminent domain reform and "Kelo plus" initiatives is toward a comprehensive Constitutional property right incorporating the elements of level of review, nature of government action, and extent of compensation. This article contains a draft amendment which reflects these concerns.

Should Judges Do Independent Research On Scientific Issues?, Edward K. Cheng

Vanderbilt Law School Faculty Publications

Judges are deeply divided about the issue of independent research, which goes to the heart of their roles and responsibilities in the legal system. To many judges, doing independent research when confronted with new and unfamiliar material seems the most responsible and natural thing to do. To others, it represents the worst kind of overreaching and a threat to long-cherished adversarial values. But whether one supports the practice or not, one thing is clear. The issue of independent research deserves far greater attention than it has so far from jurists, academics, and practitioners alike.

Are Patented Research Tools Still Valuable? Use, Intent, And A Rebuttable Presumption: A Proposed Modification For Analyzing The Exemption From Patent Infringement Under 35 Usc 271 (E) (1), Vihar R. Patel

ExpressO

Briefly, the article proposes to have courts focus on the nature of an individual's use and apply the "UART" (Use As a Research Tool) factors to determine if a patented invention is being used as a research tool. If a patented invention is being used as a research tool, then the court is to presume that the activities are not covered by the FDA exemption. However, this presumption can be rebutted by a researcher's demonstration of the research tool owner using his patent to block efforts to develop a competing product. If the presumption is rebutted, then the court applies …

Bond Repudiation, Tax Codes, The Appropriations Process And Restitution Post-Eminent Domain Reform, John H. Ryskamp

ExpressO

This brief comment suggests where the anti-eminent domain movement might be heading next.

A Default-Logic Paradigm For Legal Reasoning And Factfinding, Vern R. Walker

ExpressO

Unlike research in linguistics and artificial intelligence, legal research has not used advances in logical theory very effectively. This article uses default logic to develop a paradigm for analyzing all aspects of legal reasoning, including factfinding. The article provides a formal model that integrates legal rules and policies with the evaluation of both expert and non-expert evidence – whether the reasoning occurs in courts or administrative agencies, and whether in domestic, foreign, or international legal systems. This paradigm can standardize the representation of legal reasoning, guide empirical research into the dynamics of such reasoning, and put the representations and research …

Same Old, Same Old: Scientific Evidence Past And Present, Edward K. Cheng

Vanderbilt Law School Faculty Publications

For over twenty years, and particularly since the Supreme Court's Daubert' decision in 1993, much ink has been spilled debating the problem of scientific evidence in the courts. Are jurors or, in the alternative, judges qualified to assess scientific reliability? Do courts really need to be concerned about "junk science"? What mechanisms can promote better decision making in scientific cases? Even a cursory scan of the literature shows the recent explosion of interest in these issues, precipitating new treatises, hundreds of articles, and countless conferences for judges, practitioners, and academics.

Same Old, Same Old: Scientific Evidence Past And Present, Edward K. Cheng

Michigan Law Review

For over twenty years, and particularly since the Supreme Court's Daubert decision in 1993, much ink has been spilled debating the problem of scientific evidence in the courts. Are jurors or, in the alternative, judges qualified to assess scientific reliability? Do courts really need to be concerned about "junk science"? What mechanisms can promote better decision making in scientific cases? Even a cursory scan of the literature shows the recent explosion of interest in these issues, precipitating new treatises, hundreds of articles, and countless conferences for judges, practitioners, and academics. To this literature, Professor Tal Golan adds Laws of Men …

Eyewitness Identification, Democratic Deliberation, And The Politics Of Science, Andrew E. Taslitz

Cardozo Public Law, Policy & Ethics Journal

The article examines the intersection of social science and legal policy in eyewitness identification, focusing on the role of prosecutors and the American Bar Association (ABA) Eyewitness Resolution. It argues that while social science provides critical insights to improve identification accuracy, the translation of these insights into legal policy involves normative judgments that balance competing values, such as protecting the innocent and ensuring public safety. The author critiques the limitations of internal deliberative processes within law enforcement and prosecutorial offices, advocating for more transparent and inclusive deliberative structures to address systemic errors and promote justice.

What Do Snowmobiles, Mercury Emissions, Greenhouse Gases, And Runoff Have In Common?: The Controversy Over "Junk Science", Linda A. Malone

Faculty Publications

No abstract provided.

Keynote Address: Reforming Eyewitness Identification, Thomas P. Sullivan

Cardozo Public Law, Policy & Ethics Journal

The article addresses the critical issue of eyewitness identification errors in criminal investigations, highlighting their role in wrongful convictions. It advocates for reform through improved identification procedures, particularly the sequential lineup method, and emphasizes the need for public and professional education on the fallibility of eyewitness testimony.

The Overlapping Magisteria Of Law And Science: When Litigation And Science Collide, William G. Childs

ExpressO

The Supreme Court’s 1993 decision in Daubert v. Merrell Dow Pharmaceuticals transformed courts’ evaluation of expert testimony. Many courts, applying Daubert, focus extensively on whether the purported expert’s methodology has been published in a peer-reviewed journal.

This focus on peer review results in two unintended consequences that have triggered criticism: litigation-driven scholarship and litigants taking discovery into the peer review process. Critics contend that litigation-driven scholarship is irredeemably biased and that peer review discovery is too often an effort to intimidate scholars from speaking on subjects of public concern.

In this Article, I explore these phenomena and the criticisms of …

A Study Of Juror Expectations And Demands Concerning Scientific Evidence: Does The "Csi Effect" Exist?, Hon. Donald E. Shelton, Young S. Kim, Gregg Barak

Vanderbilt Journal of Entertainment & Technology Law

This article is the first empirical study of jurors designed to investigate the existence and extent of the "CSI effect." The authors conducted a survey of 1027 persons who had been called for jury duty in a Michigan state court during a nine-week period in June, July and August, 2006. This survey examined the summoned jurors' demographic information, television viewing habits, their expectations that the prosecutor would produce scientific evidence and whether they would demand scientific evidence as a condition of a guilty verdict.

This study of juror expectations and demands about scientific evidence in relationship to other types of …

Behavioral Genetics Research And Criminal Dna Databanks, David H. Kaye

Faculty Scholarship

This article examines the current concerns about whether DNA databases may be used for actions other than to apprehend criminals, such as genetic research, in particular, searching for a "crime gene". Part II considers the perspective that these databases may be useful for research. The information within a DNA sample consists of a limited number of DNA base-pair variations, which are important to identification, but not necessarily to genetic research. However, while it may be difficult to conduct genetic research, it is not impossible. Part III examines state and federal database legislation. There are examples of three states' statutes and …

Testing Jury Reforms, Valerie P. Hans, B. Michael Dann, David H. Kaye, Erin J. Farley, Stephanie Albertson

Cornell Law Faculty Publications

DNA evidence has become a key law enforcement tool and is increasingly presented in criminal trials in Delaware and elsewhere. The integrity of the criminal trial process turns upon the jury's ability to understand DNA evidence and to evaluate properly the testimony of experts. How well do they do? Can we assist them in the process?

Breaking The Bank: Revisiting Central Bank Of Denver After Enron And Sarbanes-Oxley, Celia Taylor

ExpressO

No abstract provided.