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Author: D. B. Beres Publisher: Scholastic Inc. ISBN: 0545088429 Category : Criminal investigation Languages : en Pages : 130
Book Description
Describes what fingerprint analysts and DNA specialists do and the equipment that they use, relates the history of fingerprinting and DNA analysis, and discusses the role of fingerprint and DNA evidence in six real-life cases.
Author: D. B. Beres Publisher: Scholastic Inc. ISBN: 0545088429 Category : Criminal investigation Languages : en Pages : 130
Book Description
Describes what fingerprint analysts and DNA specialists do and the equipment that they use, relates the history of fingerprinting and DNA analysis, and discusses the role of fingerprint and DNA evidence in six real-life cases.
Author: Cecilia Jennings Publisher: Greenhaven Publishing LLC ISBN: 1534561757 Category : Juvenile Nonfiction Languages : en Pages : 106
Book Description
One of the greatest scientific breakthroughs ever for law enforcement agencies was the discovery of DNA analysis. This relatively new science allows police to catch a criminal from evidence as small as a human hair. Informative text gives readers a basic understanding of DNA and how forensic analysts can examine criminal evidence and create a genetic chain that leads to the perpetrator. This complex topic is made easy to understand through engaging fact boxes and informative sidebars, and the science is brought into sharp focus through eye-catching photographs.
Author: Allison R. Taylor Publisher: ISBN: Category : Cleaning compounds Languages : en Pages : 212
Book Description
As forensic DNA analysis has experienced countless advances in the past several decades, it has gained considerable notoriety among the general public, including those that are involved in the commission of crimes, leading to biological evidence that has been contaminated with various cleaning products in an attempt to conceal or destroy DNA evidence. This research examined the effects that three types of cleaning agents have on the ability of the Applied Biosystems® Automate ExpressTM Forensic DNA Extraction System to efficiently extract high quality DNA free from inhibiting compounds using the Prepfiler ExpressTM Forensic DNA Extraction Kit. This study further assessed the impact that these chemicals have on the entire forensic DNA analysis process through evaluation of the quality of genetic profiles using a quantitative scale. A dilution series (neat to 1:1000) was prepared from whole human blood, as well as from a bleach product containing sodium hydroxide, a quaternary ammonium-based multi-surface cleaner, and a carpet cleaner with hydrogen peroxide as the active ingredient. Each blood dilution was combined with each dilution of the three cleaning products and each of those samples was analyzed in triplicate. The amount of DNA extracted from bleach-treated samples was reduced compared to corresponding control samples due to destruction of the DNA prior to extraction. The quantification results from samples treated with both the ammonium-based cleaner and the hydrogen peroxide carpet cleaner were similar to controls. The automated system successfully removed inhibitory compounds from samples containing sodium hydroxide and quaternary ammonium compounds, but the blood samples containing the concentrated hydrogen peroxide cleaner showed increased inhibition. The genetic profile quality scores indicated that the ammonium-based cleaner had no effect on profiles regardless of the dilution ratio of the sample, while samples containing at least equal amounts of bleach and blood can be expected to display extensive dropout of alleles. The inhibition previously mentioned due to the hydrogen peroxide carpet cleaner completely inhibited amplification in samples containing 1:100 or 1:1000 diluted blood treated with neat carpet cleaner. These results indicate that crime scene personnel should document any cleaning agents that may have contaminated biological evidence as it could significantly impact the results of DNA analysis depending on the type of product and its concentration in relation to the evidence.
Author: Sheldon Krimsky Publisher: Columbia University Press ISBN: 0231145209 Category : Computers Languages : en Pages : 426
Book Description
Two leading authors on medical ethics, science policy, and civil liberties take a hard look at how the United States has balanced the use of DNA technology, particularly the use of DNA databanks in criminal justice, with the privacy rights of its citizenry. The authors explore many controversial topics, including the legal precedent for taking DNA from juveniles, the search for possible family members of suspects in DNA databases, the launch of "DNA dragnets" among local populations, and the warrantless acquisition by police of so-called abandoned DNA in the search for suspects. Most intriguing, they explode the myth that DNA profiling is infallible, which has profound implications for criminal justice.
Author: William Hunter Publisher: Simon and Schuster ISBN: 1422289508 Category : Juvenile Nonfiction Languages : en Pages : 112
Book Description
A flake of skin...a strand of hair...a fleck of saliva...a drop of blood...everywhere we go we leave behind bits of ourselves that are as unique as fingerprints. Each cell contains genetic material called DNA, which holds information that scientists can use to learn about the person who left those cells behind. In the past twenty-five years, researchers have made significant advances in all disciplines of science, including the study of genetics. As science has leapt forward, the effect on forensics has been remarkable. New knowledge of DNA has dramatically changed the amount of information available to forensic scientists at the scene of a crime, opening doors that were never open before.
Author: Jay Aronson Publisher: Rutgers University Press ISBN: 0813543835 Category : Law Languages : en Pages : 287
Book Description
When DNA profiling was first introduced into the American legal system in 1987, it was heralded as a technology that would revolutionize law enforcement. As an investigative tool, it has lived up to much of this hype—it is regularly used to track down unknown criminals, put murderers and rapists behind bars, and exonerate the innocent. Yet, this promise took ten turbulent years to be fulfilled. In Genetic Witness, Jay D. Aronson uncovers the dramatic early history of DNA profiling that has been obscured by the technique’s recent success. He demonstrates that robust quality control and quality assurance measures were initially nonexistent, interpretation of test results was based more on assumption than empirical evidence, and the technique was susceptible to error at every stage. Most of these issues came to light only through defense challenges to what prosecutors claimed to be an infallible technology. Although this process was fraught with controversy, inefficiency, and personal antagonism, the quality of DNA evidence improved dramatically as a result. Aronson argues, however, that the dream of a perfect identification technology remains unrealized.
Author: D. B. Beres
Author: D. B. Beres
Author: 
Author: Rowena Bass
Author: Mara Jane Johnson
Author: Cecilia Jennings
Author: Allison R. Taylor
Author: Sheldon Krimsky
Author: Howard Coleman
Author: William Hunter
Author: Jay Aronson