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Fundamentals of criminal evidence -- The criminal trial process -- Pleadings, motions, sentencing and appeals -- Defense counsel role and strategies -- The Prosecutor's role -- Exclusionary rule of evidence -- Search warrants -- The crime scene -- Physical evidence -- Audio, video, photographic and computer evidence -- Confessions and admissions -- Lay and police witnesses -- Expert witnesses -- Hearsay evidence -- Testimonial privileges
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).
Argues that evidence-based policing is not just the process of evaluating police practices, but also about translating that knowledge into digestible and useable forms, as well as institutionalizing research processes and findings into everyday policing systems so that research can be used.
Identifying the Culprit: Assessing Eyewitness Identification makes the case that better data collection and research on eyewitness identification, new law enforcement training protocols, standardized procedures for administering line-ups, and improvements in the handling of eyewitness identification in court can increase the chances that accurate identifications are made. This report explains the science that has emerged during the past 30 years on eyewitness identifications and identifies best practices in eyewitness procedures for the law enforcement community and in the presentation of eyewitness evidence in the courtroom. In order to continue the advancement of eyewitness identification research, the report recommends a focused research agenda.
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.
Traditionally, forensic investigation has not been fully utilized in the investigation of property crime. This ground-breaking book examines the experiences of patrol officers, command staff, detectives, and chiefs as they navigate the expectations of forensic evidence in criminal cases, specifically property crimes cases. DNA and Property Crime Scene Investigation looks at the current state of forensic technology and, using interviews with police officers, command staff, forensic technicians, and prosecutors, elucidates who is doing the work of forensic investigation. It explores how better training can decrease backlogs in forensic evidence processing and prevent mishandling of crucial evidence. Concluding with a police chief’s perspective on the approach, DNA and Property Crime Scene Investigation provides insight into an emerging and important approach to property crime scene investigation. Key Features Provides practical information on implementing forensic investigation for property crimes Examines the current state of forensic technology and points to future trends Includes a police chief’s perspective on the forensic approach to investigating property crimes Utilizes interviews with professionals in the field to demonstrate the benefits of the approach