The Evaluation of Forensic DNA Evidence

The Evaluation of Forensic DNA Evidence

Author: National Research Council

Publisher: National Academies Press

Published: 1996-12-12

Total Pages: 270

ISBN-13: 0309134404

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In 1992 the National Research Council issued DNA Technology in Forensic Science, a book that documented the state of the art in this emerging field. Recently, this volume was brought to worldwide attention in the murder trial of celebrity O. J. Simpson. The Evaluation of Forensic DNA Evidence reports on developments in population genetics and statistics since the original volume was published. The committee comments on statements in the original book that proved controversial or that have been misapplied in the courts. This volume offers recommendations for handling DNA samples, performing calculations, and other aspects of using DNA as a forensic toolâ€"modifying some recommendations presented in the 1992 volume. The update addresses two major areas: Determination of DNA profiles. The committee considers how laboratory errors (particularly false matches) can arise, how errors might be reduced, and how to take into account the fact that the error rate can never be reduced to zero. Interpretation of a finding that the DNA profile of a suspect or victim matches the evidence DNA. The committee addresses controversies in population genetics, exploring the problems that arise from the mixture of groups and subgroups in the American population and how this substructure can be accounted for in calculating frequencies. This volume examines statistical issues in interpreting frequencies as probabilities, including adjustments when a suspect is found through a database search. The committee includes a detailed discussion of what its recommendations would mean in the courtroom, with numerous case citations. By resolving several remaining issues in the evaluation of this increasingly important area of forensic evidence, this technical update will be important to forensic scientists and population geneticistsâ€"and helpful to attorneys, judges, and others who need to understand DNA and the law. Anyone working in laboratories and in the courts or anyone studying this issue should own this book.


DNA Technology in Forensic Science

DNA Technology in Forensic Science

Author: National Research Council

Publisher: National Academies Press

Published: 1992-02-01

Total Pages: 199

ISBN-13: 0309045878

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Matching DNA samples from crime scenes and suspects is rapidly becoming a key source of evidence for use in our justice system. DNA Technology in Forensic Science offers recommendations for resolving crucial questions that are emerging as DNA typing becomes more widespread. The volume addresses key issues: Quality and reliability in DNA typing, including the introduction of new technologies, problems of standardization, and approaches to certification. DNA typing in the courtroom, including issues of population genetics, levels of understanding among judges and juries, and admissibility. Societal issues, such as privacy of DNA data, storage of samples and data, and the rights of defendants to quality testing technology. Combining this original volume with the new update-The Evaluation of Forensic DNA Evidence-provides the complete, up-to-date picture of this highly important and visible topic. This volume offers important guidance to anyone working with this emerging law enforcement tool: policymakers, specialists in criminal law, forensic scientists, geneticists, researchers, faculty, and students.


Strengthening Forensic Science in the United States

Strengthening Forensic Science in the United States

Author: National Research Council

Publisher: National Academies Press

Published: 2009-07-29

Total Pages: 348

ISBN-13: 0309142393

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Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.


Making Sense of DNA Backlogs, 2010

Making Sense of DNA Backlogs, 2010

Author: Mark Nelson

Publisher: DIANE Publishing

Published: 2011

Total Pages: 20

ISBN-13: 1437941176

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Federal funding made available by the National Institute of Justice (NIJ) through the DNA Initiative helped state and local governments significantly increase the capacity of their DNA laboratories between 2005 and 2008. At the same time, the demand for DNA testing continues to outstrip the capacity of crime laboratories to process these cases. This report addresses the issue that crime laboratories are processing more cases than ever before, but their expanded capacity has not been able to meet the increased demand. The report examines what a backlog is and how backlogs can be reduced. Charts and tables.


Using DNA to Solve Cold Cases

Using DNA to Solve Cold Cases

Author: U.s. Department of Justice

Publisher: Createspace Independent Pub

Published: 2012-07-18

Total Pages: 34

ISBN-13: 9781478268123

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DNA has proven to be a powerful tool in the fight against crime. DNA evidence can identify suspects, convict the guilty, and exonerate the innocent. Throughout the Nation, criminal justice professionals are discovering that advancements in DNA technology are breathing new life into old, cold, or unsolved criminal cases. Evidence that was previously unsuitable for DNA testing because a biological sample was too small or degraded may now yield a DNA profile. Development of the Combined DNA Index System (CODIS) at the State and national levels enables law enforcement to aid investigations by effectively and efficiently identifying suspects and linking serial crimes to each other. The National Commission on the Future of DNA Evidence made clear, however, that we must dedicate more resources to empower law enforcement to use this technology quickly and effectively. Using DNA to Solve Cold Cases is intended for use by law enforcement and other criminal justice professionals who have the responsibility for reviewing and investigating unsolved cases. This report will provide basic information to assist agencies in the complex process of case review with a specific emphasis on using DNA evidence to solve previously unsolvable crimes. Although DNA is not the only forensic tool that can be valuable to unsolved case investigations, advancements in DNA technology and the success of DNA database systems have inspired law enforcement agencies throughout the country to reevaluate cold cases for DNA evidence. As law enforcement professionals progress through investigations, however, they should keep in mind the array of other technology advancements, such as improved ballistics and fingerprint databases, which may substantially advance a case beyond its original level.


Convicted by Juries, Exonerated by Science

Convicted by Juries, Exonerated by Science

Author: Edward F. Connors

Publisher: DIANE Publishing

Published: 1996

Total Pages: 119

ISBN-13: 0788131257

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The development of DNA technology furthers the search for truth by helping police & prosecutors in the fight against violent crime. Most of the individuals whose stories are told in the report were convicted after jury trials & were sentenced to long prison terms. They successfully challenged their convictions, using DNA tests on existing evidence. They had served, on average, seven years in prison. By highlighting the importance & utility of DNA evidence, this report presents challenges to the scientific & justice communities. A task ahead is to maintain the highest standards for the collection & preservation of DNA evidence.


ABA Standards for Criminal Justice

ABA Standards for Criminal Justice

Author: American Bar Association. Criminal Justice Standards Committee

Publisher: American Bar Association

Published: 2007

Total Pages: 160

ISBN-13: 9781590318928

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"Although the Standards in this volume are considered part of the set of Third Edition ABA Criminal Justice Standards, the earlier editions did not include standards on DNA evidence. Therefore, the Standards included here are the first ABA Criminal Justice Standards on DNA Evidence."--Page iii.


Inside the Cell

Inside the Cell

Author: Erin E Murphy

Publisher: Bold Type Books

Published: 2015-10-06

Total Pages: 399

ISBN-13: 1568584709

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Josiah Sutton was convicted of rape. He was five inches shorter and 65 pounds lighter than the suspect described by the victim, but at trial a lab analyst testified that his DNA was found at the crime scene. His case looked like many others -- arrest, swab, match, conviction. But there was just one problem -- Sutton was innocent. We think of DNA forensics as an infallible science that catches the bad guys and exonerates the innocent. But when the science goes rogue, it can lead to a gross miscarriage of justice. Erin Murphy exposes the dark side of forensic DNA testing: crime labs that receive little oversight and produce inconsistent results; prosecutors who push to test smaller and poorer-quality samples, inviting error and bias; law-enforcement officers who compile massive, unregulated, and racially skewed DNA databases; and industry lobbyists who push policies of "stop and spit." DNA testing is rightly seen as a transformative technological breakthrough, but we should be wary of placing such a powerful weapon in the hands of the same broken criminal justice system that has produced mass incarceration, privileged government interests over personal privacy, and all too often enforced the law in a biased or unjust manner. Inside the Cell exposes the truth about forensic DNA, and shows us what it will take to harness the power of genetic identification in service of accuracy and fairness.