An Introduction To Lasers Forensic Lights And Fluorescent Fingerprint Detection Techniques
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An Introduction To Lasers Forensic Lights And Fluorescent Fingerprint Detection Techniques
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Author : E. Roland Menzel
language : en
Publisher:
Release Date : 1991
An Introduction To Lasers Forensic Lights And Fluorescent Fingerprint Detection Techniques written by E. Roland Menzel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Social Science categories.
Fingerprint Detection With Lasers Second Edition
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Author : Menzel
language : en
Publisher: CRC Press
Release Date : 1999-03-03
Fingerprint Detection With Lasers Second Edition written by Menzel and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-03 with Law categories.
Offers up-to-date treatment of fingerprint detection with lasers, including basic principles and equipment, established photoluminescence-based detection techniques and a range of emerging techniques. This second edition summarizes information on time-resolved fingerprint detection, transition selection rules, image intensifiers and CCD cameras, uses of photoluminescence in criminalistics, and scientific principles underlying figerprint detection.
Light In Forensic Science
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Author : Giorgia Miolo
language : en
Publisher: Royal Society of Chemistry
Release Date : 2018-04-16
Light In Forensic Science written by Giorgia Miolo and has been published by Royal Society of Chemistry this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-16 with Science categories.
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.
Advances In Fingerprint Technology
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Author : Ashim K. Datta
language : en
Publisher: CRC Press
Release Date : 2001-06-15
Advances In Fingerprint Technology written by Ashim K. Datta and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-06-15 with Law categories.
Fingerprints constitute one of the most important categories of physical evidence, and it is among the few that can be truly individualized. During the last two decades, many new and exciting developments have taken place in the field of fingerprint science, particularly in the realm of methods for developing latent prints and in the growth of imag
Fingerprint Detection With Lasers
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Author : E. Roland Menzel
language : en
Publisher: Marcel Dekker Incorporated
Release Date : 1980
Fingerprint Detection With Lasers written by E. Roland Menzel and has been published by Marcel Dekker Incorporated this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Law categories.
Fingerprint Detection By Fluorescence Examination
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Author : S. A. Hardwick
language : en
Publisher:
Release Date : 1990
Fingerprint Detection By Fluorescence Examination written by S. A. Hardwick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Fingerprints categories.
Laser Fingerprint Detection Under Background Light Interference
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Author : W. Li
language : en
Publisher:
Release Date : 1992
Laser Fingerprint Detection Under Background Light Interference written by W. Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Fingerprints categories.
A gateable, image-intensified laser system that permits detection of latent fingerprints under high background light is described. The system is intended for crime-scene work and for daylight conditions.
Fingerprints And Other Ridge Skin Impressions
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Author : Christophe Champod
language : en
Publisher: CRC Press
Release Date : 2004-04-27
Fingerprints And Other Ridge Skin Impressions written by Christophe Champod and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-04-27 with Law categories.
The field of fingerprinting for personal identification and criminal investigation is progressing at a rapid rate. Numerous research projects are devoted to fingerprint detection techniques and identification issues, and recent debate focuses on the admissibility of fingerprint evidence in US courts. In light of these events, as well as the previous lack of one volume that brings together the scientific and legal aspects of this discipline, the time is ideal for an easily accessible resource that gathers together and analyzes the latest findings and techniques related to fingerprint science. Fingerprints and Other Ridge Skin Impressions features the insight of a recognized team of authorities, including contributors from a key institution for forensic research. Chapters cover all aspects of the subject including the formation of friction ridges on the skin, the deposition of latent prints, the detection and enhancement of such marks, recording of fingerprint evidence, and fingerprint identification itself. Recent advances in statistical interpretation, fingerprint detection techniques, and computer technology are also discussed in detail. This practical techniques manual is an ideal text for practitioners working in the field of fingerprint detection and identification, as well as anyone studying forensic science at the undergraduate and postgraduate levels. There is also sufficient background material for legal professionals and police in need of an introduction to the critical subject of fingerprinting.
Laser Excited Fluorescence Imaging Of Latent Fingerprints
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Author : Estrolita Green
language : en
Publisher:
Release Date : 2011
Laser Excited Fluorescence Imaging Of Latent Fingerprints written by Estrolita Green and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Chemical tests and reagents categories.
[Truncated abstract] The detection of latent fingerprints is a challenging analytical problem. It involves the detection of very small quantities of specific chemical compounds in situ on potentially complex substrates. Despite the success of the current procedures for photoluminescence detection of fingerprints, many types of articles remain as difficult substrates because of intense background fluorescence, which is often spectrally broad and difficult to suppress. Very few methods are able to detect untreated latent fingerprints. This study investigated whether (i) confocal laser scanning microscopy (CLSM) equipped with Fluorescence Lifetime Imaging (FLIM) could suppress background fluorescence sufficiently to reveal good quality images of such fingerprints and (ii) whether it could further enhance fingerprints detected with conventional optical techniques. Imaging was performed with a Leica TCS multi-photon confocal system equipped with FLIM. Methodologies were developed for untreated fingerprints and fingerprints treated with ninhydrin, cyanoacrylate (CA) and CA plus fluorescent powder dusting, on various substrates chosen for either their common place in society or intractability. However, unexpected FLIM results led to the project focusing on identifying the reasons behind these results. Consequently, selected single photon lasers were employed to further investigate these findings. Exhaustive and prolonged testing revealed subtle design errors that were not in accordance with the expectations of the manufacturer...
Laser Detection Of Latent Fingerprints
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Author : JA. Burt
language : en
Publisher:
Release Date : 1985
Laser Detection Of Latent Fingerprints written by JA. Burt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with 9-Methylanthracene categories.
Fingerprint development techniques that use blue-green laser light suffer from high background fluorescence on substrates such as cardboard, wood, leather, and some metals and plastics. These substrates tend to exhibit little or no fluorescence under ultraviolet light, prompting us to search for procedures that yield visible fluorescence under this illumination. Specifically, chemical development with dansyl chloride and vapor staining with 9-methylanthracene were found to be useful when dealing with these substrates. Fluorescence excitation was possible either with an ultraviolet lamp or an argon-ion laser operating in the ultraviolet. Coumarin 535 vapor staining following 9-methylanthracene staining was also found effective.