Evidence Commons^™

The Absence Or Misuse Of Statistics In Forensic Science As A Contributor To Wrongful Convictions: From Pattern Matching To Medical Opinions About Child Abuse, Keith A. Findley

Dickinson Law Review (2017-Present)

The new scrutiny that has been applied to the forensic sciences since the emergence of DNA profiling as the gold standard three decades ago has identified numerous concerns about the absence of a solid scientific footing for most disciplines. This article examines one of the lesser-considered problems that afflicts virtually all of the pattern-matching (or “individualization”) disciplines (largely apart from DNA), and even undermines the validity of other forensic disciplines like forensic pathology and medical determinations about child abuse, particularly Shaken Baby Syndrome/Abusive Head Trauma (SBS/AHT). That problem is the absence or misuse of statistics. This article begins by applying …

No Longer Innocent Until Proven Guilty: How Ohio Violates The Fourth Amendment Through Familial Dna Searches Of Felony Arrestees, Jordan Mason

Cleveland State Law Review

In 2013, the United States Supreme Court legalized DNA collection of all felony arrestees upon arrest through its decision in Maryland v. King. Since then, the State of Ohio has broadened the use of arrestee DNA by subjecting it to familial DNA searches. Ohio’s practice of conducting familial DNA searches of arrestee DNA violates the Fourth Amendment because arrestees have a reasonable expectation of privacy in the information that is extracted from a familial DNA search and it fails both the totality of the circumstances and the special needs tests. Further, these tests go against the intention of the …

People V. Buza: A Step In The Wrong Direction, Emily R. Pincin

Loyola of Los Angeles Law Review

No abstract provided.

Deploying The Secret Police: The Use Of Algorithms In The Criminal Justice System, Jessica Gabel Cino

Georgia State University Law Review

Algorithms saturate our lives today; from curated song lists to recommending “friends” and news feeds, they factor into some of the most human aspects of decision-making, tapping into preferences based on an ever-growing amount of data. Regardless of whether the algorithm pertains to routing you around traffic jams or finding your next dinner, there is little regulation and even less transparency regarding just how these algorithms work. Paralleling this societal adoption, the criminal justice system now employs algorithms in some of the most important aspects of investigation and decision-making.

The lack of oversight is abundantly apparent in the criminal justice …

The First Amendment Case For Public Access To Secret Algorithms Used In Criminal Trials, Vera Eidelman

Georgia State University Law Review

As this Article sets forth, once a computerized algorithm is used by the government, constitutional rights may attach. And, at the very least, those rights require that algorithms used by the government as evidence in criminal trials be made available—both to litigants and the public. Scholars have discussed how the government’s refusal to disclose such algorithms runs afoul of defendants’ constitutional rights, but few have considered the public’s interest in these algorithms—or the widespread impact that public disclosure and auditing could have on ensuring their quality.

This Article aims to add to that discussion by setting forth a theory of …

The Technologies Of Race: Big Data, Privacy And The New Racial Bioethics, Christian Sundquist

Articles

Advancements in genetic technology have resurrected long discarded conceptualizations of “race” as a biological reality. The rise of modern biological race thinking – as evidenced in health disparity research, personal genomics, DNA criminal forensics, and bio-databanking - not only is scientifically unsound but portends the future normalization of racial inequality. This Article articulates a constitutional theory of shared humanity, rooted in the substantive due process doctrine and Ninth Amendment, to counter the socio-legal acceptance of modern genetic racial differentiation. It argues that state actions that rely on biological racial distinctions undermine the essential personhood of individuals subjected to such taxonomies, …

The Unintended Consequences Of California Proposition 47: Reducing Law Enforcement’S Ability To Solve Serious, Violent Crimes, Shelby Kail

Pepperdine Law Review

For many years, DNA databases have helped solve countless serious, violent crimes by connecting low-level offenders to unsolved crimes. Because the passage of Proposition 47 reduced several low-level crimes to misdemeanors, which do not qualify for DNA sample collection, Proposition 47 has severely limited law enforcement’s ability to solve serious, violent crimes through California’s DNA database and reliable DNA evidence. This powerful law enforcement tool must be preserved to prevent additional crimes from being committed, to exonerate the innocent, and to provide victims with closure through conviction of their assailants or offenders. Proposition 47’s unintended consequences have led to devastating …

'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye

David Kaye

In McDaniel v. Brown, the Supreme Court will review the use of DNA evidence in a 1994 trial for sexual assault and attempted murder. The Court granted certiorari to consider two procedural issues - the standard of federal postconviction review of a state jury verdict for sufficiency of the evidence, and the district court's decision to allow the prisoner to supplement the record of trials, appeals, and state postconviction proceedings with a geneticist's letter twelve years after the trial.

This essay clarifies the nature and extent of the errors in the presentation of the DNA evidence in Brown. It questions …

Visualizing Dna Proof, Nicholas L. Georgakopoulos

Nicholas L Georgakopoulos

DNA proof inherently involves the use of probability theory, which is often counterintuitive. Visual depictions of probability theory, however, can clarify the analysis and make it tractable. A DNA hit from a large database is a notoriously difficult probabi­li­ty theory issue, yet the visuals should enable courts and juries to handle it. The Puckett facts are an example of a general approach: A search in a large DNA database produces a hit for a cold crime from 1972 San Francisco. Probability theory allows us to process the probabilities that someone else in the database, someone not in the database, or …

Dna Storage Banks: The Importance Of Preserving Dna Evidence To Allow For Transparency And The Preservation Of Justice, Cristina Martin

Chicago-Kent Law Review

What is the duty to preserve information in today’s society? In order for humanity to evolve, change and flourish in the future, society needs to preserve its information from the past. In the criminal justice field, preservation of evidence has special significance. DNA evidence in particular has become a helpful aid for innocent defendants who have been improperly imprisoned. Over the past twenty years, the number of exonerations of imprisoned criminal defendants has increased dramatically. With the advancement of technology, old, previously untestable or improperly tested DNA evidence will need to be retested. However, most states do not have proper …

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

Valerie P. Hans

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 …

Dna By The Entirety, Natalie Ram

All Faculty Scholarship

The law fails to accommodate the inconvenient fact that an individual’s identifiable genetic information is involuntarily and immutably shared with her close genetic relatives. Legal institutions have established that individuals have a cognizable interest in controlling genetic information that is identifying to them. The Supreme Court recognized in Maryland v. King that the Fourth Amendment is implicated when arrestees’ DNA is analyzed, and the Genetic Information Nondiscrimination Act protects individuals from genetic discrimination in the employment and health-insurance markets. But genetic information is not like other forms of private or personal information because it is shared — immutably and involuntarily …

Dalla Traccia Di Sangue All'identikit Facciale, Charles E. Maclean

Charles E. MacLean

Assessment of dilemmas inherent in using DNA phenotyping methods to generate a physical likeness of a crime suspect based only on DNA shed at the crime scene.

Defying Dna: Rethinking The Role Of The Jury In An Age Of Scientific Proof Of Innocence, Andrea L. Roth

Andrea L Roth

In 1946, public outrage erupted after a jury ordered Charlie Chaplin to support a child who, according to apparently definitive blood tests, was not his. Half a century later, juries have again defied apparently definitive evidence of innocence, finding criminal defendants guilty based on a confession or eyewitness notwithstanding exculpatory DNA test results. One might expect judges in such cases to direct an acquittal, on grounds that the evidence is legally insufficient because no rational juror could find guilt beyond a reasonable doubt. Yet few if any do. Instead, courts defer to juries when they form an actual belief in …

A Tale Of Two Sciences, Erin Murphy

Michigan Law Review

It was the best of times, it was the worst of times . .. . So might one describe the contrasting portraits of DNA's ascension in the criminal justice system that are drawn in David Kaye's The Double Helix and the Law of Evidence and Sheldon Krimsky and Tania Simoncelli's Genetic Justice: DNA Data Banks, Criminal Investigations, and Civil Liberties. For Kaye, the double helix stands as the icon of twenty-first-century achievement, a science menaced primarily by the dolts (lawyers, judges, and the occasional analyst) who misuse it. For Krimsky and Simoncelli, DNA is a seductive forensic tool that is …

Fortuity And Forensic Familial Identification, Natalie Ram

All Faculty Scholarship

On July 7, 2010, Los Angeles police announced the arrest of a suspect in the Grim Sleeper murders, so called because of a decade-long hiatus in killings. The break in the case came when California searched its state DNA database for a genetic profile similar, but not identical, to the killer’s. DNA is inherited in specific and predictable ways, so a source-excluding partial match might indicate that a close genetic relative of the matching offender was the Grim Sleeper. California’s apparent success in this case has intensified interest in policymaking for source-excluding partial matching. To date, however, little information about …

Unraveling The Exclusionary Rule: From Leon To Herring To Robinson - And Back?, David H. Kaye

Journal Articles

The Fourth Amendment exclusionary rule began to unravel in United States v. Leon. The facts were compelling. Why exclude reliable physical evidence from trial when it was not the constable who blundered, but “a detached and neutral magistrate” who misjudged whether probable cause was present and issued a search warrant? Later cases applied the exception for “good faith” mistakes to a police officer who, pursuing a grudge against a suspect, arrested and searched him and his truck on the basis of a false and negligent report from a clerk in another county of an outstand­ing arrest warrant. The California Supreme …

Relative Doubt: Familial Searches Of Dna Databases, Erin Murphy

Michigan Law Review

The continued growth of forensic DNA databases has brought about greater interest in a search method known as "familial" or "kinship" matching. Whereas a typical database search seeks the source of a crime-scene stain by making an exact match between a known person and the DNA sample, familial searching instead looks for partial matches in order to find potential relatives of the source. The use of a familial DNA search to identify the alleged "Grim Sleeper" killer in California brought national attention to the method, which has many proponents. In contrast, this Article argues against the practice of familial searching …

"False But Highly Persuasive": How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye

Michigan Law Review First Impressions

In McDaniel v. Brown, the Supreme Court will review the use of DNA evidence in a 1994 trial for sexual assault and attempted murder. The Court granted certiorari to consider two procedural issues—the standard of federal postconviction review of a state jury verdict for sufficiency of the evidence, and the district court's decision to allow the prisoner to supplement the record of trials, appeals, and state postconviction proceedings with a geneticist's letter twelve years after the trial. The letter from Laurence Mueller, a professor at the University of California at Irvine, identified two obvious mistakes in the state's expert testimony. …

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

Journal Articles

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 …

'False But Highly Persuasive:' How Wrong Were The Probability Estimates In Mcdaniel V. Brown?, David H. Kaye

Journal Articles

In McDaniel v. Brown, the Supreme Court will review the use of DNA evidence in a 1994 trial for sexual assault and attempted murder. The Court granted certiorari to consider two procedural issues - the standard of federal postconviction review of a state jury verdict for sufficiency of the evidence, and the district court's decision to allow the prisoner to supplement the record of trials, appeals, and state postconviction proceedings with a geneticist's letter twelve years after the trial.

This essay clarifies the nature and extent of the errors in the presentation of the DNA evidence in Brown. It questions …

On Race Theory And Norms, Christian Sundquist

Articles

This article has been adapted from an address given at the Albany Law Review Symposium in Spring 2009. This article discusses the judicial acceptance of DNA random match estimates, which uses DNA analysis to estimate the likelihood that a criminal defendant is the source of genetic material that is found at a crime scene. Relying on race, these tests demonstrate how such a re-inscription of race as a biological entity threatens the modern conception of race as a social construction, and how those estimates should be rejected as inadmissible on a doctrinal level under the Federal Rules of Evidence.

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 …

Life Sciences, Technology, And The Law - Symosium Transcript - March 7, 2003, Philip R. Reilly, David H. Kaye, Jonathan J. Koehler, Richard O. Lempert

Michigan Telecommunications & Technology Law Review

Life sciences, Technology, and the Law Symposium held at the University of Michigan Law School Friday, March 7, 2003

Dna As Evidence: Viewing Science Through The Prism Of The Law, Peter Donnelly, Richard D. Friedman

Articles

In this article, we analyze a problem related to DNA evidence that is likely to be of great and increasing significance in the near future. This is the problem of whether, and how, to present evidence that the suspect has been identified through a DNA database search. In our view, the two well-known reports on DNA evidence issued by the National Research Council (NRC) have been badly mistaken in their analysis of this problem. The mistakes are significant because the reports have carried great authority with American courts; moreover, the DNA Advisory Board of the FBI has endorsed the second …

Dna Database Searches And The Legal Consumption Of Scientific Evidence, Peter Donnelly, Richard D. Friedman

Articles

DNA evidence has transformed the proof of identity in criminal litigation, but it has also introduced daunting problems of statistical analysis into the process. In this Article, we analyze a problem related to DNA evidence that is likely to be of great and increasing significance in the near future. This is the problem of whether, and how, to present evidence that the suspect has been identified through a DNA database search. In our view, the two well-known reports on DNA evidence issued by the National Research Council ("NRC"), each of which has carried great authority with the American courts on …