Scientific Protocols For Forensic Examination Of Clothing

When a crime or other incident takes place, clothing items are often present or left behind, and can become directly involved in the case itself. Items of clothing are thus one of the most common types of exhibit examined in court. They can provide valuable information in cases of violent crimes, such as homicide or rape, as well as in burglary, ro

In order for forensic fibre examiners to fully utilize fibre and textile evidence during their analysis, they require not only specialised forensic knowledge but also in-depth knowledge of fibres, yarns and fabrics themselves. Production, both the chemical and physical structure, and the properties of these materials is required in order to determine the value of fibre evidence. This includes knowing production figures, fashion changes, sudden arrivals of new materials, dye variability, and numerous other factors that may have a bearing on the information obtained. Fully updated with the latest advances, Forensic Examination of Fibres, Third Edition continues in the tradition of the First (1992) and Second Editions (1999) as the premier text on the subject of forensic fibre analysis. The international team of contributing authors detail the recovery of the evidence—through the different stages of laboratory examination—to the evaluation of the meaning of findings. The coverage has been considerably expanded, and all material, has been revised and wholly updated. Topics covered include examining damaged textiles, infrared microspectroscopy and thin layer chomatography, and colour analyses. This edition also highlights the critical role of quality assurance in ensuring the reliability of the technical observations and results, and, in doing so, looks at the implications of supervisory managers and labs in the accurate and responsible analysis of such evidence. Features include: Outlining evidentiary process from collecting and preserving the evidence at the crime scene through the laboratory analysis of fibres Detailing the latest developments and emerging technologies including Kevlar and other such advances in fibre technology Coverage of a broad array of fibres both, natural (cellulose, protein, and mineral) and man-made fibres including synthetic, inorganic and regenerated Forensic Examination of Fibres, Third Edition is a much-needed update to the classic book, serving as an indispensable reference to crime scene technicians, laboratory forensic scientists and microscopists, students in police, forensic, and justice science programs.

This book is the definitive text for forensic scientists, police and lawyers who may be involved with the use of textile fibres to provide evidence in criminal cases. While covering the subject in detail from recovery of the evidence, through the different stages of laboratory examination, to evaulating the meaning of findings, it is written in such a way that it should be interesting and understandable to the beginner and to the layman, as well as to the expert.

Knowledge of the science behind fires is critical to understanding a fire‘s cause and successfully presenting that determination to the authorities or in litigation. Now in its second edition, Scientific Protocols for Fire Investigation focuses on the practical application of scientific principles to determine the causes of fires. Uniquely qualifie

Knowledge of the science behind fires is critical to understanding a fire’s cause and successfully presenting that determination to the authorities or in litigation. Now in its second edition, Scientific Protocols for Fire Investigation focuses on the practical application of scientific principles to determine the causes of fires. Uniquely qualified with years of experience in on-site investigations, lab analyses, and courtroom presentation, the author provides a resource that is unparalleled in depth and focus. The book explores: The history of fire investigation and the basic chemistry and physics of fire The science of fire dynamics—how things burn and how they interact with their surroundings while doing so Practical procedures for conducting fire scene inspections Laboratory examination of fire debris to test for the presence of ignitable liquid residues and for potential ignition sources Relevant scientific principles as applied to 30 actual fires The evolution of the mythology of arson investigation The common root causes of errors in fire investigation The final chapter discusses the professional practice of fire investigation. It examines quality assurance, business practices, and the fundamentals of being an expert witness, with advice for giving testimony in depositions and at trial. Other highlights of the second edition include new and expanded discussions on novel training methods, first assumptions, computer fire modeling, low voltage ignition sources, the questionable validity of some origin determinations, and recent changes in NFPA 921. Thorough and accessible, this volume not only provides the practical information necessary to conduct an effective inquiry but also offers insight into the science, history, and theory behind what makes fire investigation a multi-faceted profession. John Lentini discusses the book in a video on the CRC Press YouTube Channel.

Scientific Protocols for Fire Investigation, Third Edition focuses on the practical application of fundamental scientific principles to determine the causes of fires. Originally published in 2006, the First Edition was very well received by fire investigators and those who work with them. Since fire investigation is a rapidly evolving field—driven by new discoveries about fire behavior—the Second Edition was published in late 2012. This latest, fully updated Third Edition reflects the most recent developments in the field. Currently, serious research is underway to try to understand the role of ventilation in structure fires. Likewise, there is improved understanding of the kinds of errors investigators can make that lead to incorrect determinations of the causes of fires. In addition to the scientific aspects, the litigation of fire related events is rapidly changing, particularly with respect to an investigator's qualifications to serve as an expert witness. This book covers these latest developments and ties together the changing standards for fire investigations with the fundamental scientific knowledge presented in the early chapters of the book. The book is intended for those individuals who have recently entered the field of fire investigation, and those who are studying fire investigation with a plan to become certified professionals. In addition, professionals in the insurance industry who hire fire investigators will find this an invaluable resource. Insurance companies have sustained significant losses by hiring individuals who are not qualified, resulting in cases being settled or lost at a cost of millions. Insurance adjusters and investigators will learn to recognize quality fire investigations and those that are not up to today's standards. Lastly, this book is also for the many attorneys who litigate fire cases. Written with language and terms that make the science accessible even to the non-scientist, this new edition will be a welcome resource to any professional involved in fire and arson cases.

Forensic Textile Science provides an introduction to textile science, emphasizing the terminology of the discipline and offering detailed coverage of the ways textile damage analysis can be used in forensics. Part One introduces textiles and their role in forensics, including chapters on fibers, yarns and fabrics, garment types and construction, and household textiles. Part Two covers analysis of textile damage in a forensic context. Key topics include textile degradation and natural damage, weapon and impact damage, textile ripping, and ballistic damage. This book is an important reference point for all those interested in textile damage and the role of textiles in forensics, including academics, post-graduate students, and forensic scientists. Offers various perspectives on forensic textile science from an international team of contributors Provides wide-ranging coverage of textile damage analysis in the context of forensic investigations Includes chapters on fibers, yarns and fabrics, garment types and construction, and household textiles

Forensic DNA Transfer provides a guide to the recognition and current understanding of DNA transfer in forensic criminal investigations. Increased improvements in technology mean that it is now routinely possible to obtain DNA profiles from non-visible deposits. How or when the DNA in question was deposited may be an issue in the context of the case, especially if the donor of the DNA is not in dispute. A DNA profile alone cannot reveal when or how that DNA was deposited at a crime scene, nor can it reveal the body matter from which it originated. Issues of transfer associated with activities may be debated—which the traditional discrimination purpose of DNA profiling cannot address. DNA may be everywhere and anywhere—in homes, at workplaces, during transport, and on personal items including clothing. DNA from a person may be on an object they have never contacted or in a room they have never entered. Concepts discussed in the book include non-self DNA on hands through day-to-day activities, the prevalence of background DNA in the environment and perhaps on the exhibit, the persistence of any DNA transferred, and that a DNA result will depend on these variables as well as recovery techniques. Since DNA may be transferred to an exhibit: (a) during the commission of a crime, (b) before the crime, and/or (c) after the crime through handling, examination, and testing, this book covers various transfer pathways and sources of DNA. Documented cases of inadvertent transfer of DNA resulting in wrongful convictions or the misdirection of criminal investigations are discussed—with an emphasis on contamination mitigation throughout the entire process. Forensic DNA Transfer examines the additional complexity resulting from non-visible deposits of DNA that impact on sampling and testing regimes. The changing understanding of the composition of purported 'touch DNA' deposits from the skin, including extracellular DNA transported via body secretions, is described. Further, the newer focus on interpreting DNA evidence—using activity level propositions and the rationale and associated issues—is also discussed.