Forensic Firearms in Criminal Trials

Forensic Firearms in Criminal Trials PDF Author: J. K. Sinha
Publisher: CRC Press
ISBN: 1351023845
Category : Law
Languages : en
Pages : 126

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Book Description
Over the last two‐plus decades, the scientific validity of the principles that underpin identifying a firearm from recovered fired ammunition has been a core issue for the admissibility of expert evidence in criminal trials in the United States. The issues that dominated the determinative points, as they related to the scientific and technological analysis, centered around the following: the validity of uniqueness of firearms, subjective methodology, the potential rate of error, unknown statistical certainty and unsatisfactory proficiency tests. These issues have essentially become the legal requirement for admissibility of experts’ opinion on the linkage of firearms with fired ammunition, an important forensic opinion that connects the crime with the perpetrator through the weapon of offence. In Forensic Firearms in Criminal Trials: Legal, Investigative, and Scientific Aspects, internationally renowned forensic firearm expert Dr J. K. Sinha provides demonstrative explanations and helpful clarifications using simple illustrative examples from scientific casework and everyday life. The goals are to: Prove the scientific validity of the uniqueness of identifying features of firearms Identify the statistical threshold to qualify and determine a corresponding match Debunk the misconception of subjective methodology and the potential rate of error thereof in experts’ decision making and opinions Clarify the prevailing perception of similar, dissimilar and insufficient marks and consequential interpretation With certain non‐technical readers in mind as well, the book provides a basic understanding of the general make‐up of firearms and ammunition, the evidentiary values of commonly used firearms, fired empties, fired bullets and pellets, and scientific investigative leads that result from visual and physical evidence. Chapters cover related topics such as proficiency tests, identifying competent experts, admitted firing, and reliable and testable methodology. The book also reviews the admissibility of expert evidence in India and explains the proviso of admissibility of ballistic expert report in criminal trials. Throughout, the author emphasizes the need for requisite forensic knowledge by the investigator and aided by a competent expert for effective scientific investigation of gunfire crimes such as would aid in the proper presentation of scientific evidence at criminal trial for a successful outcome.

Forensic Firearms in Criminal Trials

Forensic Firearms in Criminal Trials PDF Author: J. K. Sinha
Publisher: CRC Press
ISBN: 1351023845
Category : Law
Languages : en
Pages : 126

Get Book Here

Book Description
Over the last two‐plus decades, the scientific validity of the principles that underpin identifying a firearm from recovered fired ammunition has been a core issue for the admissibility of expert evidence in criminal trials in the United States. The issues that dominated the determinative points, as they related to the scientific and technological analysis, centered around the following: the validity of uniqueness of firearms, subjective methodology, the potential rate of error, unknown statistical certainty and unsatisfactory proficiency tests. These issues have essentially become the legal requirement for admissibility of experts’ opinion on the linkage of firearms with fired ammunition, an important forensic opinion that connects the crime with the perpetrator through the weapon of offence. In Forensic Firearms in Criminal Trials: Legal, Investigative, and Scientific Aspects, internationally renowned forensic firearm expert Dr J. K. Sinha provides demonstrative explanations and helpful clarifications using simple illustrative examples from scientific casework and everyday life. The goals are to: Prove the scientific validity of the uniqueness of identifying features of firearms Identify the statistical threshold to qualify and determine a corresponding match Debunk the misconception of subjective methodology and the potential rate of error thereof in experts’ decision making and opinions Clarify the prevailing perception of similar, dissimilar and insufficient marks and consequential interpretation With certain non‐technical readers in mind as well, the book provides a basic understanding of the general make‐up of firearms and ammunition, the evidentiary values of commonly used firearms, fired empties, fired bullets and pellets, and scientific investigative leads that result from visual and physical evidence. Chapters cover related topics such as proficiency tests, identifying competent experts, admitted firing, and reliable and testable methodology. The book also reviews the admissibility of expert evidence in India and explains the proviso of admissibility of ballistic expert report in criminal trials. Throughout, the author emphasizes the need for requisite forensic knowledge by the investigator and aided by a competent expert for effective scientific investigation of gunfire crimes such as would aid in the proper presentation of scientific evidence at criminal trial for a successful outcome.

Forensic Investigation of Unusual Firearms

Forensic Investigation of Unusual Firearms PDF Author: J.K. Sinha
Publisher: CRC Press
ISBN: 1466571381
Category : Law
Languages : en
Pages : 204

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Book Description
In recent years, the use of illegally produced firearms has increased exponentially worldwide. These are often cheap, nonstandard firearms that defy known classification and identification criteria. The use of unusual firearms in crimes has frequently led to unpredictable and misleading reconstruction of shooting incidents. In this book, internatio

Forensic Firearm Examination

Forensic Firearm Examination PDF Author: Chris Monturo
Publisher: Academic Press
ISBN: 0128145404
Category : Law
Languages : en
Pages : 344

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Book Description
Forensic Firearm Examination provides the reader with a thorough understanding of theory, application, and process of firearm comparison. It is essential in the field of forensic firearm examination to not only understand the marks that examiners are observing, but more importantly learn where these marks come from during the manufacturing process. This book explores the various machining techniques utilized in the manufacturing process and the resulting marks left by those tools. This information will equip the examiner with the knowledge to answer questions posed by the legal system regarding the uniqueness or potential similarity of marks on firearms imparted to fired bullets and cartridge cases. Intended primarily for firearm and tool mark examiners, this valuable resource serves as a primary requirement for the training of firearm and tool mark examiners. Other forensic science disciplines who rely on pattern matching as a primary determining factor whether or not two objects may share a common source would also find utility in this work. Finally, it will be a valuable resource for attorneys who are seeking to understand better the scientific aspects of firearm identification. Written by a foremost expert in the field, Forensic Firearm Examination explores specific firearm manufacturing techniques and the resulting marks, which has not been covered in any book publication. Chris Monturo has over 23 years of experience as forensic firearm and tool mark examiner. Additionally, he is a distinguished member of the Association of Firearm and Tool Mark Examiners (AFTE), a past member of the Scientific Working Group for Firearm and Tool Marks (SWGGUN), past member of the Organization of Scientific Area Subcommittees (OSAC) for firearm and tool marks and has instructed courses in machining for the firearm examiner in the United States and Internationally. - Provides reader with a thorough understanding of theory, application, and process of firearm identification - Topics include the manufacturing process of all components that interact with the bullet or case during firing, the nature of manufacturing and potential pitfalls, such as subclass

Forensic Firearms in Criminal Trials

Forensic Firearms in Criminal Trials PDF Author: J. K. Sinha
Publisher: CRC Press
ISBN: 9781138495654
Category : Law
Languages : en
Pages : 0

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Book Description
Over the last two‑plus decades, the scientific validity of the principles that underpin identifying a firearm from recovered fired ammunition has been a core issue for the admissibility of expert evidence in criminal trials in the United States. The issues that dominated the determinative points, as they related to the scientific and technological analysis, centered around the following: the validity of uniqueness of firearms, subjective methodology, the potential rate of error, unknown statistical certainty and unsatisfactory proficiency tests. These issues have essentially become the legal requirement for admissibility of experts' opinion on the linkage of firearms with fired ammunition, an important forensic opinion that connects the crime with the perpetrator through the weapon of offence. In Forensic Firearms in Criminal Trials: Legal, Investigative, and Scientific Aspects, internationally renowned forensic firearm expert Dr J. K. Sinha provides demonstrative explanations and helpful clarifications using simple illustrative examples from scientific casework and everyday life. The goals are to: Prove the scientific validity of the uniqueness of identifying features of firearms Identify the statistical threshold to qualify and determine a corresponding match Debunk the misconception of subjective methodology and the potential rate of error thereof in experts' decision making and opinions Clarify the prevailing perception of similar, dissimilar and insufficient marks and consequential interpretation With certain non‑technical readers in mind as well, the book provides a basic understanding of the general make‑up of firearms and ammunition, the evidentiary values of commonly used firearms, fired empties, fired bullets and pellets, and scientific investigative leads that result from visual and physical evidence. Chapters cover related topics such as proficiency tests, identifying competent experts, admitted firing, and reliable and testable methodology. The book also reviews the admissibility of expert evidence in India and explains the proviso of admissibility of ballistic expert report in criminal trials. Throughout, the author emphasizes the need for requisite forensic knowledge by the investigator and aided by a competent expert for effective scientific investigation of gunfire crimes such as would aid in the proper presentation of scientific evidence at criminal trial for a successful outcome.

Gunshot Wounds

Gunshot Wounds PDF Author: Vincent J.M. DiMaio, M.D.
Publisher: CRC Press
ISBN: 9781420048377
Category : Law
Languages : en
Pages : 432

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Book Description
Written by the nation's foremost authority on gunshot wounds and forensic techniques as they relate to firearm injuries, Gunshot Wounds: Practical Aspects of Firearms, Ballistics, and Forensic Techniques, Second Edition provides critical information on gunshot wounds and the weapons and ammunition used to inflict them. The book describes practical aspects of ballistics, wound ballistics, and the classification of various wounds caused by handguns, bang guns, rifles, and shotguns. The final chapters explain autopsy technique and procedure and laboratory analysis relating to weapons and gunshot evidence.

Forensic Science in Court

Forensic Science in Court PDF Author: Donald Shelton
Publisher: Rowman & Littlefield Publishers
ISBN: 1442201894
Category : Law
Languages : en
Pages : 198

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Book Description
Forensic Science in Court explores the legal implications of forensic science—an increasingly important and complex part of the justice system. Judge Donald Shelton provides an accessible overview of the legal aissues, from the history of evidence in court, to "gatekeeper" judges determining what evidence can be allowed, to the "CSI effect" in juries. The book describes and evaluates various kinds of evidence, including DNA, fingerprints, handwriting, hair, bite marks, tool marks, firearms and bullets, fire and arson investigation, and bloodstain evidence. Assessing the strengths and limitations of each kind of evidence, the author also discusses how they can contribute to identifying the "who," "how," and "whether" questions that arise in criminal prosecutions. Author Donald Shelton draws on the depth of his experiences as courtroom prosecutor, professor, and judge, to provide a well-rounded look at these increasingly critical issues. Case studies throughout help bring the issues to life and show how forensic science has been used, both successfully and not, in real-world situations.

Online Child Sexual Exploitation

Online Child Sexual Exploitation PDF Author: Ernesto Caffo
Publisher: Springer Nature
ISBN: 3030666549
Category : Psychology
Languages : en
Pages : 123

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Book Description
This book examines the modern pandemic of online child sexual exploitation (OCSE). It explores the prevalence, perpetration, impact, and victimization of as well as therapy for child sexual exploitation and its interaction with child sexual abuse. Chapters discuss OCSE from neuropsychological, epidemiological, neurological, behavioral, psychological, clinical, neurobiological and epigenetic perspectives. The volume also addresses the physical and mental impact of early exposure to pornography. The book serves as a resource on an issue that is proving exponentially complex as technology ceaselessly evolves at a faster rate than its consequences can be understood and addressed. Key areas of coverage include: Neuropsychological changes and dysfunctional coping mechanisms resulting from both online and offline child sexual abuse. The psychological, emotional, and physical impacts (e.g., depression, anxiety, PTSD, and self-harm) of child sexual abuse. Prevention and early intervention strategies, including scalable technological responses. Developing a public health approach to preventing and addressing online child abuse and exploitation. Porn culture and its impact on children, adolescents, and emerging adults. The neurobiology and epigenetic impact of trauma. This book is a must-have resource for researchers, clinicians, and graduate students in child and school psychology, public health, social work as well as interrelated disciplines, including neuropsychology, neurobiology, sociology, anthropology, and educational policy and politics.

Firearms, the Law, and Forensic Ballistics

Firearms, the Law, and Forensic Ballistics PDF Author: Margaret-Ann Armour
Publisher: CRC Press
ISBN: 0203568222
Category : Law
Languages : en
Pages : 475

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Book Description
Firearms, the Law, and Forensic Ballistics, Second Edition offers a comprehensive reference on the forensic science of firearms. It describes what happens when a weapon is fired in terms of internal, external, and terminal/ wound ballistics, and discusses the consequences for the forensic scientist both at the scene of the shooting and in the labor

Strengthening Forensic Science in the United States

Strengthening Forensic Science in the United States PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309142393
Category : Law
Languages : en
Pages : 348

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Book Description
Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.

Forensic Analysis

Forensic Analysis PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309090792
Category : Law
Languages : en
Pages : 227

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Book Description
Since the 1960s, testimony by representatives of the Federal Bureau of Investigation in thousands of criminal cases has relied on evidence from Compositional Analysis of Bullet Lead (CABL), a forensic technique that compares the elemental composition of bullets found at a crime scene to the elemental composition of bullets found in a suspect's possession. Different from ballistics techniques that compare striations on the barrel of a gun to those on a recovered bullet, CABL is used when no gun is recovered or when bullets are too small or mangled to observe striations. Forensic Analysis: Weighing Bullet Lead Evidence assesses the scientific validity of CABL, finding that the FBI should use a different statistical analysis for the technique and that, given variations in bullet manufacturing processes, expert witnesses should make clear the very limited conclusions that CABL results can support. The report also recommends that the FBI take additional measures to ensure the validity of CABL results, which include improving documentation, publishing details, and improving on training and oversight.