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.

Uses case studies to examine how investigators collect genetic evidence and discusses how DNA has altered crime-solving and the court system as well as the ethical ramifications of cloning, genetic modification, and the death penalty.

Including several cold cases that were most recently solved using forensic analysis. Also, the pros and cons of forensic science. From ballistics and blood splatter patterns to DNA analysis and voice printing, RJ Parker explores the highly complex world of investigative forensic sciences. Intended as an introductory guide and reference to forensic techniques for front-line police officers, criminal attorneys, journalists, crime authors and just interested readers, this encyclopedic book is a must read for any true crime aficionado. Parker examines various forensic techniques and principles of investigative sciences, some of the historical figures in the evolution of forensics over the last two centuries, and provides real cold case examples where forensic sciences were key to not only in identifying the guilty but also in clearing the innocent and freeing the wrongly convicted.

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.

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.

Between 1985 and 2004 a staggering 8,894 unsolved homicides were committed in New York City. Here is the first ever inside look at the elite NYPD squad that cracks these “unsolvable” cases. In this fascinating, in-depth narrative, Stacy Horn uses her unprecedented access to the NYPD Cold Case Squad to immerse herself into four unsolved murder cases—cases going back as far as 1951—investigated by three indefatigable Cold Case detectives. Each detective uses his own contacts, informants, and resources and sifts through decades-old evidence, searching for new leads, looking for what others missed, and uncovering any possible connections. These Cold Case detectives are on a constant hunt for the needle in the haystack, and Stacy Horn puts you there every step of the way. From the grisly circumstances and desperate reconstructions of the crimes, through the endless legwork, the scientific advances that don’t always yield hoped-for answers, and the harrowing politics and tangled history of the storied NYPD, Horn depicts the drama of each case, and lays out the puzzle as seen through the eyes of the detectives. At once contemplative and energetic, The Restless Sleep is a completely addictive, fly-on-the-wall story of a subculture of crime solving, and of the people who must beat the odds to offer a final resolution for the unavenged.