Held In Evidence

With the popularity of crime dramas like CSI focusing on forensic science, and increasing numbers of police and prosecutors making wide-spread use of DNA, high-tech science seems to have become the handmaiden of law enforcement. But this is a myth,asserts law professor and nationally known expert on police profiling David A. Harris. In fact, most of law enforcement does not embrace science—it rejects it instead, resisting it vigorously. The question at the heart of this book is why. »» Eyewitness identifications procedures using simultaneous lineups—showing the witness six persons together,as police have traditionally done—produces a significant number of incorrect identifications. »» Interrogations that include threats of harsh penalties and untruths about the existence of evidence proving the suspect’s guilt significantly increase the prospect of an innocent person confessing falsely. »» Fingerprint matching does not use probability calculations based on collected and standardized data to generate conclusions, but rather human interpretation and judgment.Examiners generally claim a zero rate of error – an untenable claim in the face of publicly known errors by the best examiners in the U.S. Failed Evidence explores the real reasons that police and prosecutors resist scientific change, and it lays out a concrete plan to bring law enforcement into the scientific present. Written in a crisp and engaging style, free of legal and scientific jargon, Failed Evidence will explain to police and prosecutors, political leaders and policy makers, as well as other experts and anyone else who cares about how law enforcement does its job, where we should go from here. Because only if we understand why law enforcement resists science will we be able to break through this resistance and convince police and prosecutors to rely on the best that science has to offer.Justice demands no less.

This is a guide to recommended practices for crime scene investigation. The guide is presented in five major sections, with sub-sections as noted: (1) Arriving at the Scene: Initial Response/Prioritization of Efforts (receipt of information, safety procedures, emergency care, secure and control persons at the scene, boundaries, turn over control of the scene and brief investigator/s in charge, document actions and observations); (2) Preliminary Documentation and Evaluation of the Scene (scene assessment, "walk-through" and initial documentation); (3) Processing the Scene (team composition, contamination control, documentation and prioritize, collect, preserve, inventory, package, transport, and submit evidence); (4) Completing and Recording the Crime Scene Investigation (establish debriefing team, perform final survey, document the scene); and (5) Crime Scene Equipment (initial responding officers, investigator/evidence technician, evidence collection kits).

With lucid text, four-color illustrations, and abundant examples, Criminal Evidence: From Crime Scene to Courtroom, Second Edition, follows the path of evidence throughout the criminal justice process. Derek Regensburger offers a clear introduction to the principles of evidence and instructions for collecting, preserving, and presenting evidence in a criminal case. Actual trials and news excerpts bring the material to life as they illustrate the role of evidence in real cases. Online videos of mock trial scenes reinforce students’ understanding of key concepts covered in the book. New to the Second Edition: Federal Rules of Evidence—updated to reflect the restyling that took place at the end of 2011 Reordered chapters that better accommodate the discussion of terminology and the criminal justice process Discussion of the reliability of forensic evidence has been given its own chapter and updated with the most recent studies and cases, including a 2016 report on the issue authored by the President’s Council on Science and Technology Coverage of the authentication of social media posts has been greatly expanded and treated separately Discussion of expert testimony reflects recent changes such as increased acceptance of the Daubert standard for admission Evidence in Action articles have been updated and expanded to feature recent events, including the George Zimmerman trial and the Bill Cosby sexual assault trial New and expanded discussions of preemptory challenges and Kentucky v. Batson; appeal of right, ineffective assistance of counsel, habeas corpus petitions; Biggers factors and eyewitness identifications; subpoena duces tecum; grand jury subpoenas; the validity of hair comparison analysis and bite mark identification; same-sex marriage and spousal privilege; health records of a crime victim; admissibility of statements made by young children to teachers Professors and students will benefit from: Straightforward text that follows the evidence from collection to trial Accessible three-part organization I. The Collection and Preservation of Evidence II. Pretrial Matters III. Admissibility of Evidence Four-color photographs and exhibits that illustrate evidentiary concepts Evidence in Action, observed in real trials and news excerpts Practical examples that apply legal concepts through hypothetical scenarios Review questions and application problems at the end of each chapter that test students’ mastery of the material Short mock trial scenes on the companion website that illustrate key concepts discussed in the text

The manner in which criminal investigators are trained is neither uniform nor consistent, ranging from sophisticated training protocols in some departments to on-the-job experience alongside senior investigators in others. Ideal for students taking a first course in the subject as well as professionals in need of a refresher, Introduction to Criminal Investigation uses an accessible format to convey concepts in practical, concrete terms. Topics discussed include: The history of criminal investigation in Western society Qualifications for becoming an investigator, the selection process, and ideal training requirements Crime scene search techniques, including planning and post-search debriefing Preparing effective field notes and investigative reports Interviewing and interrogating Types of evidence found at the crime scene and how to collect, package, and preserve it The contributions of forensic science to criminal investigations and the equipment used in crime labs Investigative protocol for a range of crimes, including property crimes, auto theft, arson, financial crimes, homicide, assault, sex crimes, and robbery Specialized investigations, including drug trafficking, cybercrime, and gang-related crime Legal issues involved in criminal investigations and preparing a case for trial Bringing together contributions from law enforcement personnel, academics, and attorneys, the book combines practical and theoretical elements to provide a comprehensive examination of today‘s criminal investigative process. The accessible manner in which the information is conveyed makes this an ideal text for a wide-ranging audience.

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.