Law Commons^™

Unreliable Forensic Science, Sarah Ciuffetelli

Quest

The Effectiveness of Forensic Science

Research in progress for CRIJ 1301: Introduction to Criminal Justice

Faculty Mentor: Stefanie LeMaire

Sarah Ciuffetelli uses critical thinking to examine the effectiveness of forensic sciences during criminal investigations. The assignment requires students to find the most prominent scholarly research in forensic sciences and discuss its efficacy. Further, the research leads students to discuss the potential limitations investigators must consider when examining forensic evidence. Lastly, students find at least six scholarly sources to provide an in-depth analysis of the research.

Sarah begins by discussing the history of forensic science and the ever-increasing technology used in …

The Contribution Of Forensic Science To Wrongful Convictions: An Analysis Of Forensic Expert Testimony, Parker Gunter

Honors Theses

The purpose of this study was to explore the progression and potential improvement of forensic science in court. Errors is forensic science have contributed to the problem of wrongful convictions, but research surrounding forensic expert testimony over the last decade is lacking. The way that an expert explains evidence in court is important to gain a broader understanding for how forensic science may fail. The testimonies of forensic experts were analyzed both quantitatively and qualitatively to further understand the shortcomings in the field at the end of its journey through the criminal justice system. The results showed that the testimonies …

Evaluating A Test For Shedding Propensity Using Tape Lifts From Different Skin Locations, Xiao M. Chen

Student Theses

The shedding propensity of a person can assist data interpretation in casework when assessing the possibility of passive transfer for DNA analysis. Past studies on shedding propensity evaluated palmar skin (washed and unwashed) deposits. This study compared different skin locations with respect to shedding propensity, and explored the potential of tape-lifts as a skin surface collection method. Eight different skin types and samples were collected with adhesive tape disks from 28 participants over three non-consecutive days; the washed and unwashed fingers from both hands, toe, and arm, neck below ear, and nape. Samples were extracted, quantified, amplified, genotyped, and evaluated …

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 …

Evidence On Fire, Valena Beety, Jennifer Oliva

Articles by Maurer Faculty

Fire science, a field largely developed by lay “arson investigators,” police officers, or similar first responders untrained in chemistry and physics, has been historically dominated by unreliable methodology, demonstrably false conclusions, and concomitant miscarriages of justice. Fire investigators are neither subject to proficiency testing nor required to obtain more than a high school education. Perhaps surprisingly, courts have largely spared many of the now debunked tenets of fire investigation any serious scientific scrutiny in criminal arson cases. This Article contrasts the courts’ ongoing lax admissibility of unreliable fire-science evidence in criminal cases with their strict exclusion of the same flimsy …

Mandating Meaningful Forensic Discovery: A Proposal To Fuel The Engine Of Truthfulness, Marjorie Mcdiarmid

Faculty & Staff Scholarship

No abstract provided.

Firearm-Mark Evidence: Looking Back And Looking Ahead, David H. Kaye

Journal Articles

This article, written as a contribution to a festschrift for Paul Giannelli, surveys the development of the law on one type of feature-matching evidence that repeatedly attracted Professor Giannelli’s attention — “firearm-mark evidence.” By inspecting toolmarks on bullets or spent cartridge cases, firearms examiners can supply valuable information on whether a particular gun fired the ammunition in question. But the limits on this information have not always been respected in court, and a growing number of opinions have tried to address this fact.

The article explains how the courts have moved from a position of skepticism of the ability 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 Forensic Community Can Educate Lawyers, Judges, Robert M. Sanger

Robert M. Sanger

Forensics’ Fight: A Need For Aggressive Strategies Against Confirmation Bias, Madison Mcgowan

Themis: Research Journal of Justice Studies and Forensic Science

In 2009, the National Academy of Sciences produced a lengthy report illuminating significant weaknesses present within the forensic community. One complex fault found in forensics was conformation bias. Since it is within human nature to make decisions based on contextual information, assumptions, and pre-held opinions, confirmation bias is an issue that will continue to persist. Therefore, stronger efforts must be made to recognize and abate the problem of bias within the field of forensics in order to preserve the notion that forensic science exists to serve principles of both truth and justice. Accordingly, this paper argues for the fight against …

Changing The Culture Of Disclosure And Forensics, Valena Beety

Washington and Lee Law Review Online

This Essay responds to Professor Brandon Garrett’s Constitutional Regulation of Forensic Evidence, and, in particular, his identification of the dire need to change the culture of disclosing forensic evidence. My work on forensics is—similarly to Garrett’s—rooted in both scholarship and litigation of wrongful convictions. From this perspective, I question whether prosecutors fully disclose forensics findings and whether defense attorneys understand these findings and their impact on a client’s case. To clarify forensic findings for the entire courtroom, this Essay suggests increased pre-trial discovery and disclosure of forensic evidence and forensic experts. Forensic analysts largely work in police-governed labs; therefore, …

Richards Ii Takes A Bite Out Of Forensic Science, Michelle Cornell-Davis

Loyola of Los Angeles Law Review

No abstract provided.

Discovering Forensic Fraud, Jennifer Oliva, Valena Beety

Articles by Maurer Faculty

This Essay posits that certain structural dynamics, which dominate criminal proceedings, significantly contribute to the admissibility of faulty forensic science in criminal trials. The authors believe that these dynamics are more insidious than questionable individual prosecutorial or judicial behavior in this context. Not only are judges likely to be former prosecutors, prosecutors are “repeat players” in criminal litigation and, as such, routinely support reduced pretrial protections for defendants. Therefore, we argue that the significant discrepancies between the civil and criminal pretrial discovery and disclosure rules warrant additional scrutiny.

In the criminal system, the near absence of any pretrial discovery means …

The New Pcast Report To The President Of The United States On Forensic Science, Robert M. Sanger

Robert M. Sanger

Probability, Individualization, And Uniqueness In Forensic Science Evidence: Listening To The Academies, David H. Kaye

David Kaye

Day in and day out, criminalists testify to positive, uniquely specific identifications of fingerprints, bullets, handwriting, and other trace evidence. A committee of the National Academy of Sciences, building on the writing of academic commentators, has called for sweeping changes in the presentation and production of evidence of identification. These include some form of circumscribed and standardized testimony. But the Academy report is short on the specifics of the testimony that would be legally and professionally allowable. This essay outlines possible types of testimony that might harmonize the testimony of criminalists with the actual state of forensic science. It does …

Ultracrepidarianism In Forensic Science: The Hair Evidence Debacle, David H. Kaye

David Kaye

For over 130 years, scientific sleuths have been inspecting hairs under microscopes. Late in 2012, the FBI, the Innocence Project, and the National Association of Criminal Defense Lawyers joined forces to review thousands of microscopic hair comparisons performed by FBI examiners over several of those decades. The results have been astounding. Based on the first few hundred cases in which hairs were said to match, it appears that examiners “exceeded the limits of science” in over 90% of their reports or testimony. The disclosure of this statistic has led to charges that the FBI “faked an entire field of forensic …

Ultracrepidarianism In Forensic Science: The Hair Evidence Debacle, David H. Kaye

Washington and Lee Law Review Online

For over 130 years, scientific sleuths have inspected hairs under microscopes. Late in 2012, the FBI, the Innocence Project, and the National Association of Criminal Defense Lawyers joined forces to review thousands of microscopic hair comparisons performed by FBI examiners over several of those decades. The results have been astounding. Based on the first few hundred cases in which hairs were said to match, it appears that examiners exceeded the limits of science in over 90% of their reports or testimony. The disclosure of this statistic has led to charges that the FBI faked an entire field of forensic science, …

Junk Science? Four Arguments Against The Radiological Age Assessment Of Unaccompanied Minors Seeking Asylum, Gregor Noll

Gregor Noll

Should radiological age assessment at all be considered as a means to alleviate the doubts of a decision taker in the asylum procedure? In this text, I ask, first, whether the use of radiological imaging methods in the age assessment of unaccompanied adolescents seeking asylum are in compliance with internal norms of the forensic science community and find that they are not. Second, I consider whether their use is scientifically authoritative according to the current state of the art in forensic medicine and traumatology. I find that they are not. Third, I pursue they question whether their use is sufficiently …

Ultracrepidarianism In Forensic Science: The Hair Evidence Debacle, David H. Kaye

Journal Articles

For over 130 years, scientific sleuths have been inspecting hairs under microscopes. Late in 2012, the FBI, the Innocence Project, and the National Association of Criminal Defense Lawyers joined forces to review thousands of microscopic hair comparisons performed by FBI examiners over several of those decades. The results have been astounding. Based on the first few hundred cases in which hairs were said to match, it appears that examiners “exceeded the limits of science” in over 90% of their reports or testimony. The disclosure of this statistic has led to charges that the FBI “faked an entire field of forensic …

Forensic Science(S) In The Courtroom: Symposium, Joseph R. Slights, Jules Epstein, Lisa M. Schwind, Gerard Spadaccini, Anjali A. Ranadive

Jules Epstein

No abstract provided.

From Gridlock To Groundbreaking: Realizing Reliability In Forensic Science, Jessica D. Gabel

Jessica Gabel Cino

In 2009, The National Academy of Sciences published a scathing report announcing that forensic science is broken and needs to be overhauled. Weaknesses have plagued forensic evidence for decades, and the resulting legal challenges have been hard fought but met with few victories. What we do know is a harsh truth: that faulty forensic science has contributed to the conviction of innocent people—and will continue to do so if the status quo persists.

In recent years, the reality of wrongful convictions has become mainstream through the work of the Innocence Project and other organizations. Out of the 305 DNA-based exonerations …

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 …

The 2009 Nas Forensic Science Report: A Literature Review, Paul C. Giannelli

Faculty Publications

In February 29, the National Academy of Sciences (NAS) released its report on forensic science: Strengthening Forensic Science in the United States: A Path Forward (29). The popular press immediately trumpeted the report’s release, with headlines such as (1) “Report Urges Overhaul of Crime Lab System,” (2) “Real-life Police Forensics Don’t Resemble ‘CSI’: Reliability is ‘Low or Non-existent,’ Report Finds” and (3) “Science Found Wanting in Nation’s Crime Labs.”

Within three months of its publication, Justice Scalia cited the report in a Supreme Court decision, writing: “Forensic evidence is not uniquely immune from the risk of manipulation. . . Serious …

Individualization Claims In Forensic Science: Still Unwarranted, Jonathan Koehler, Michael J. Saks

Faculty Working Papers

In a 2008 paper published in the Vanderbilt Law Review entitled "The Individualization Fallacy in Forensic Science Evidence," we argued that no scientific basis exists for the proposition that forensic scientists can "individualize" an unknown marking (such as a fingerprint, tire track, or handwriting sample) to a particular person or object to the exclusion of all others in the world. In this special issue of the Brooklyn Law Review, we clarify, refine, and extend some of the ideas presented in Fallacy. Some of the refinements are prompted by Professor David Kaye's paper, also in this issue of the Review, in …

Probability, Individualization, And Uniqueness In Forensic Science Evidence: Listening To The Academies, David H. Kaye

Journal Articles

Day in and day out, criminalists testify to positive, uniquely specific identifications of fingerprints, bullets, handwriting, and other trace evidence. A committee of the National Academy of Sciences, building on the writing of academic commentators, has called for sweeping changes in the presentation and production of evidence of identification. These include some form of circumscribed and standardized testimony. But the Academy report is short on the specifics of the testimony that would be legally and professionally allowable. This essay outlines possible types of testimony that might harmonize the testimony of criminalists with the actual state of forensic science. It does …

Will History Be Servitude?: The Nas Report On Forensic Science And The Rule Of The Judiciary, Jane Moriarty

Jane Campbell Moriarty

For several decades, the prosecution and its witnesses have maintained that despite little research and virtually no standards, they can match a fingerprint, handwriting, bullet and bullet cartridge, hair, dental imprint, footprint, tire track, or even a lip print to its unique source (collectively, “individualization evidence”). Not only can they match it, they claim, they can do so often without any error rate. In the last few decades, with the help of lawyers and academics, litigants have challenged the underlying reliability of individualization evidence. Scholars in various disciplines have written about the startling state of individualization evidence, including its lack …

Twenty-First Century Forensic Science Challenges For Trial Judges In Criminal Cases: Where The "Polybutadiene" Meets The "Bitumen", Hon. Donald E. Shelton

Hon. Donald E. Shelton

This artice discusses the challenges faced by trial judges in crimnal cases in fulfilling their Daubert "gatekeeping" role in the face of rapid advancements in forensic science. Admissibility questions for various forms of scientific evidence are reviewed, from DNA to fingerprints to social science "syndrome" evidence. The article discusses the pretrial issues presented by DNA databases, search issues and limitations problems as well as the impact of forensic science developments on juror expectations. Finally, forensic science issues regarding trial conduct are discussed, including voir dire, arguments and jury instructions,

The Individualization Fallacy In Forensic Science Evidence, Michael J. Saks, Jonathan J. Koehler

Vanderbilt Law Review

Forensic identification science involves two fundamental steps. The first step is to compare a questioned item of evidence to an exemplar from a known source and judge whether they appear so alike that they can be said to match. The second step is to assess the meaning of that reported match: What is the probability that the questioned and the known originated from the same source?

Different risks of error are present at each step. The risk of error in the first step is that a reported match between a questioned and a known sample might not really match. Even …

“Misconvictions,” Science And The Ministers Of Justice, Jane Campbell Moriarty

Jane Campbell Moriarty

DNA evidence has exonerated over two hundred wrongfully convicted defendants in the last several years, providing insights into the causes of such convictions. One such cause, faulty scientific evidence, is a focus of this article. For decades, many have written about the prevalence of and reasons for wrongful convictions --what I have termed “misconvictions.” A few reasons support the coinage “misconvictions”: the miscarriage of justice when an innocent person is convicted; the mistakes involved in the prosecution and trial of the case; the mistaken identification that may have occurred; and finally, the recognition that all wrongful convictions are a missed …