Forensic DNA Transfer

Politics & Social Sciences

Taupin, Jane Moira

Social Sciences

CRC-Press

Scientific Protocols for Forensic Examination of Clothing (Protocols in Forensic Science)

Cwiklik, Chesterene

Forensic Dna Transfer

CRC Press

Boca Raton : Crc Press, 2023

Interpreting Complex Forensic DNA Evidence

Interpreting Complex Forensic DNA Evidence is a handy guide to recent advances―and emerging issues―in interpreting complex DNA evidence and profiles for use in criminal investigations. In certain cases, DNA cannot be connected to a specific biological material such as blood, semen or saliva. How or when the DNA was deposited may be an issue. The possibility of generating DNA profiles from touched objects, where there may not be a visible deposit, has expanded the scope and number of exhibits submitted for DNA analysis.\nWith such advances, and increasing improvements in technological capabilities in testing samples, this means it is possible to detect ever smaller amounts of DNA. There are also many efforts underway to seek was to interpret DNA profiles that are sub-optimal―either relative to the amount required by the testing kit and, potentially, the quality of the obtained sample. Laboratories often use enhancements in order to obtain a readable DNA profile.\nThe broad-reaching implications of improving DNA sensitivity have led to this next, emerging generation of more complex profiles. Examples partial profiles that do not faithfully reflect the proposed donor, or mixtures of partial DNA from multiple people. A complexity threshold has been proposed to limit interpretation of poor-quality data. Research is now addressing the interpretation of transfer of trace amounts of DNA. Complex issues are arising in trial that need to be reconciled as such complexity has added challenges to the interpretation of evidence and its introduction or dismissal in certain cases in the courts.\nKey Features:\nAddresses DNA transfer, from person-to-person as well as to objects\nOutlines each stage required to produce a DNA profile from an exhibit―including collection, handling, storage, and analysis\nDiscusses ethics, subjectivity, and bias―including cognitive dissonance―as they relate specifically to complex DNA evidence\nHighlights current techniques and the latest advances in DNA analysis, including advances in familial DNA searches\nInterpreting Complex Forensic DNA Evidence provides tools to assist the criminal investigator, forensic expert, and legal professional when posed with a DNA result in a forensic report or testimony. The result―and any associated statistic―may not reveal any ambiguity, complexity, or the assumptions involved in deriving it. Questions from resolved criminal cases are posed, and the relevant forensic literature, provided for the reader to assess a DNA result and any associated statistic. Case studies throughout illustrate concepts and emphasize the need for conclusions in the forensic report that are supported by the data.

Introduction to Forensic DNA Evidence for Criminal Justice Professionals

The use of DNA profiling in forensic cases has been considered the most innovative technique in forensic science since fingerprinting, yet for those with limited scientific knowledge, understanding DNA enough to utilize it properly can be a daunting task. Introduction to Forensic DNA Evidence for Criminal Justice Professionals is designed for nonscientific readers who need to learn how to effectively use forensic DNA in criminal cases. Written by a forensic scientist world renowned for her expertise in clothing examination, the book provides a balanced perspective on the weight of DNA evidence. Going beyond a simple explanation of the methodology, it arms attorneys and other criminal justice professionals with knowledge of the strengths and limitations of the evidence, including the danger in relying on DNA statistical probabilities in the determination of guilt. The book covers the most common DNA methods used in criminal trials today nuclear DNA short tandem repeat (STR) techniques, mitochondrial DNA, and Y-STR profiling. It helps prosecutors know when to emphasize DNA evidence or proceed with trial in the absence of such evidence. It assists defense lawyers in knowing when to challenge DNA evidence and perhaps employ an independent expert, when to focus elsewhere, or when to secure the advantage of an early guilty plea. By imparting practical and theoretical knowledge in an accessible manner, the book demystifies the topic to help both sides of the adversarial system understand where DNA evidence fits within the context of the case.

Using Forensic DNA Evidence at Trial

Using Forensic DNA Evidence at Trial: A Case Study Approach covers the most common DNA analysis methods used in criminal trials today, including STR techniques, mitochondrial DNA, and Y-STRs. It presents some novel techniques�including familial testing and analyzing domestic animal hair�that have been recently introduced in unique cases, each of which is outlined in detail. It also illustrates special issues related to forensic DNA evidence by using court proceedings such as trials and appeals, commissions of inquiry, and government and laboratory reviews. With forensic DNA analysis becoming increasingly important at trial, the lively and sometimes bizarre cases presented in this book have been carefully chosen to highlight specific concepts, methods, and interpretations used in DNA analysis. Sections throughout examine the nature of expertise with a special focus on the role of subjectivity in the interpretation of forensic DNA evidence, emphasizing cognitive bias and extraneous context. Using both convictions and exonerations as examples, the book also discusses the strengths and limitations of DNA evidence and testing. The book is written in an accessible manner for the non-scientific reader, such that criminal lawyers, judges, and forensic experts will all understand the nature of analysis and application of DNA evidence in a variety of court cases. Extensive references�including notable trial proceedings, cross references of cases, and specific forensic statistics�round out the book and help to provide a complete understanding of forensic DNA analysis and its current usage in the courtroom.

Using Forensic DNA Evidence at Trial: A Case Study Approach

Interpreting Complex Forensic DNA Evidence is a handy guide to recent advances--and emerging issues--in interpreting complex DNA evidence and profiles for use in criminal investigations. In certain cases, DNA cannot be connected to a specific biological material such as blood, semen or saliva. How or when the DNA was deposited may be an issue. However, the possibility of generating DNA profiles from touched objects, where there may not be a visible deposit, has expanded the scope and number of exhibits submitted for DNA analysis. With such advances, and increasing improvements in technological capabilities in testing samples, this means it is possible to detect ever smaller amounts of DNA. There are also many efforts underway to seek was to interpret DNA profiles that are sub-optimal--either relative to the amount required by the testing kit and, potentially, the quality of the obtained sample. Laboratories often use enhancements in order to obtain a readable DNA profile. The broad-reaching implications of improving DNA sensitivity have led to this next, emerging generation of more complex profiles. Examples partial profiles that do not faithfully reflect the proposed donor, or mixtures of partial DNA from multiple people. A complexity threshold has been proposed to limit interpretation of poor-quality data. Research is now addressing the interpretation of transfer of trace amounts of DNA. Complex issues are arising in trial that need to be reconciled as such complexity has added challenges to the interpretation of evidence and its introduction or dismissal in certain cases in the courts. Interpreting Complex Forensic DNA Evidence provides tools to assist the criminal investigator, forensic expert, and legal professional when posed with a DNA result in a forensic report or testimony. The result--and any associated statistic--may not reveal any ambiguity, complexity, or the assumptions involved in deriving it. Questions from resolved criminal cases are posed, and the relevant forensic literature, are provided for the reader to assess a DNA result and any associated statistic. Case studies included throughout illustrate concepts and emphasize the need for conclusions in the forensic report that are data-driven and supported by the data.

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, robbery, arson, and vehicular accidents. A unique reference in the forensic arena The first of its kind, Scientific Protocols for Forensic Examination of Clothing discusses the forensic examination of clothing in criminal cases. It examines the ramifications of DNA profiling and its effect on the screening approach to clothing examination. Coverage includes protocols and procedures, preliminary assessment, examination, testing and sampling, quality assurance and control, and the significance of results. Applicable to a myriad of readers Suitable for a wide range of readers, this book is designed for examiners trying to decide how to approach a clothing examination, those looking for more information on a specific topic, laboratory quality assurance officers in need of a reliable reference, as well as attorneys, investigators, archaeologists, and curators. Expert authors Author Jane Moira Taupin has testified as a forensic expert more than 130 times. Chesterene Cwiklik is a founder of the Pacific Coast Forensic Science Institute. Their expertise makes this a valuable resource for all those who examine clothing items and interpret subsequent findings.

The use of DNA profiling in forensic cases has been considered the most innovative technique in forensic science since fingerprinting, yet for those with limited scientific knowledge, understanding DNA enough to utilize it properly can be a daunting task. Introduction to Forensic DNA Evidence for Criminal Justice Professionals is designed for nonscientific readers who need to learn how to effectively use forensic DNA in criminal cases. Written by a forensic scientist world renowned for her expertise in clothing examination, the book provides a balanced perspective on the weight of DNA evidence. Going beyond a simple explanation of the methodology, it arms attorneys and other criminal justice professionals with knowledge of the strengths and limitations of the evidence, including the danger in relying on DNA statistical probabilities in the determination of guilt. The book covers the most common DNA methods used in criminal trials today―nuclear DNA short tandem repeat (STR) techniques, mitochondrial DNA, and Y-STR profiling. It helps prosecutors know when to emphasize DNA evidence or proceed with trial in the absence of such evidence. It assists defense lawyers in knowing when to challenge DNA evidence and perhaps employ an independent expert, when to focus elsewhere, or when to secure the advantage of an early guilty plea. By imparting practical and theoretical knowledge in an accessible manner, the book demystifies the topic to help both sides of the adversarial system understand where DNA evidence fits within the context of the case.

Routledge

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Books by Taupin, Jane Moira

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Forensic DNA Transfer

Forensic DNA Transfer

Scientific Protocols for Forensic Examination of Clothing (Protocols in Forensic Science)

Forensic Dna Transfer

Interpreting Complex Forensic DNA Evidence

Introduction to Forensic DNA Evidence for Criminal Justice Professionals

Using Forensic DNA Evidence at Trial: A Case Study Approach

Interpreting Complex Forensic DNA Evidence

Scientific Protocols for Forensic Examination of Clothing (Protocols in Forensic Science)

Introduction to Forensic DNA Evidence for Criminal Justice Professionals