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The identification and quantification of material present and collected at a crime scene are critical requirements in investigative analyses. Forensic analysts use a variety of tools and techniques to achieve this, many of which use light. Light is not always the forensic analyst’s friend however, as light can degrade samples and alter results. This book details the analysis of a range of molecular systems by light-based techniques relevant to forensic science, as well as the negative effects of light in the degradation of forensic evidence, such as the breakage of DNA linkages during DNA profiling. The introductory chapters explain how chemiluminescence and fluorescence can be used to visualise samples and the advantages and limitations of available technologies. They also discuss the limitations of our knowledge about how light could alter the physical nature of materials, for example by breaking DNA linkages during DNA profiling or by modifying molecular structures of polymers and illicit drugs. The book then explains how to detect, analyse and interpret evidence from materials such as illicit drugs, agents of bioterrorism, and textiles, using light-based techniques from microscopy to surface enhanced Raman spectroscopy. Edited by active photobiological and forensic scientists, this book will be of interest to students and researchers in the fields of photochemistry, photobiology, toxicology and forensic science.
Written by the prominent art authentication and forgery detection expert David Rudd Cycleback, this small book is a primer on ultraviolet, infrared and visible light in forensic science, art and collectible examination, commerce and daily life. Topics include infrared examination of paintings, currency and license counterfeit detection, invisible ink writing, crime scene investigation, identification of alterations and restoration, and the light techniques used in forgery detection of trading cards, posters, historical documents, art glass and other collectibles. Written for the amateur scientist, junior detective and art and memorabilia collector and dealer.
Alternate Light Source Imaging provides a brief guide to digital imaging using reflected infrared and ultraviolet radiation for crime scene photographers. Clear and concise instruction illustrates how to accomplish good photographs in a variety of forensic situations. It demonstrates how tunable wavelength light sources and digital imaging techniques can be used to successfully locate and document physical evidence at the crime scene, in the morgue, or in the laboratory. The scientific principles that make this type of photography possible are described, followed by the basic steps that can be utilized to capture high quality evidentiary photographs.
The identification and quantification of material present and collected at a crime scene are critical requirements in investigative analyses. Forensic analysts use a variety of tools and techniques to achieve this, many of which use light. Light is not always the forensic analyst’s friend however, as light can degrade samples and alter results. This book details the analysis of a range of molecular systems by light-based techniques relevant to forensic science, as well as the negative effects of light in the degradation of forensic evidence, such as the breakage of DNA linkages during DNA profiling. The introductory chapters explain how chemiluminescence and fluorescence can be used to visualise samples and the advantages and limitations of available technologies. They also discuss the limitations of our knowledge about how light could alter the physical nature of materials, for example by breaking DNA linkages during DNA profiling or by modifying molecular structures of polymers and illicit drugs. The book then explains how to detect, analyse and interpret evidence from materials such as illicit drugs, agents of bioterrorism, and textiles, using light-based techniques from microscopy to surface enhanced Raman spectroscopy. Edited by active photobiological and forensic scientists, this book will be of interest to students and researchers in the fields of photochemistry, photobiology, toxicology and forensic science.
Representations of forensic procedures saturate popular culture in both fiction and true crime. One of the most striking forensic tools used in these narratives is the chemical luminol, so named because it glows an eerie greenish-blue when it comes into contact with the tiniest drops of human blood.Luminol is a deeply ambivalent object: it is both a tool of the police, historically abused and misappropriated, and yet it offers hope to families of victims by allowing hidden crimes to surface. Forensic enquiry can exonerate those falsely accused of crimes, and yet the rise of forensic science is synonymous with the development of the deeply racist 'science' of eugenics.Luminol Theory investigates the possibility of using a tool of the state in subversive, or radical, ways. By introducing luminol as an agent of forensic inquiry, Luminol Theory approaches the exploratory stages that a crime scene investigation might take, exploring experimental literature as though these texts were 'crime scenes' in order to discover what this deeply strange object can tell us about crime, death, and history, to make visible violent crimes, and to offer a tangible encounter with death and finitude. At the luminol-drenched crime scene, flashes of illumination throw up words, sentences, and fragments that offer luminous, strange glimpses, bobbing up from below their polished surfaces. When luminol shines its light, it reveals, it is magical, it is prescient, and it has a nasty allure.TABLE OF CONTENTS // Preface: Christmas, Colorado, 1996 - Section I. Queer Light: Forensics, Psychoanalysis, Hermeneutics - Section II. The Abject Parlour: Polyester Gothic, Traces at the Scene, Christmas in Colorado - Section III. Deadly Landscapes: The Shining, Colorado Histories, The Locus Terriblis - Conclusion: Necrolight, Luminol
Provides information on various aspects of forensic science appropriate for sixth through eighth grade students and includes activities and comprehension questions that reinforce each concept. Includes CD-ROM containing reproducible teacher resource materials.
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).
Provides twenty experiments in forensic science that will intrigue both students and teachers and promote the interest in multiple science-process skills.
This new dictionary covers a wide range of terms used in the field of forensic science, touching on related disciplines such as chemistry, biology, and anthropology. Case examples, figures, and photographs make it the ideal reference for students and practitioners of forensic science, as well as those with an interest in forensic science.
Crime Scene Unit Management: A Path Forward is a must-have resource for anyone involved with forensic investigations and the search for evidence at the crime scene. The book provides standards for how to manage a crime scene so that evidence is collected and preserved without errors and includes guidelines for how to implement the standards and set up regional training programs for smaller jurisdictions with tighter budgets. Key features include examples, checklists, and flow charts for evidence handling and routing. CSIs, fire investigators, homicide investigators, accident investigators, police executives, and students of forensic science will benefit from this thorough approach to how the crime scene—and the personnel charged with tending to the evidence—should be managed.