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This instrument is especially useful in the examination of trace evidence, paint, ... if a suspect recently fired a gun by identifying microscopic gunshot residue ...
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Fiber and Threads How are fibers found at a scene helpful? Why would fibers be less than helpful when found at a scene? Types of Fibers Natural fibers derived ...
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Forensic Instrumentation PART ONE Microscopes Microscopes A microscope is an optical instrument that uses a lense or combination of lenses to magnify and resolve the ...
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Forensic Microscopy Microscope 1 Forensic Microscopy Generally takes one of six forms depending on the type of evidence to be examined Compound microscope ...
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Ch 7 The Microscope Compound microscope. Magnification, field of view, working distance, and depth of focus. Comparison microscope. Advantages of stereoscopic ...
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Transmission characteristics of micro-filters ... Magnification. Cassegrain reflection objectives. Objectives. Transmittance, Reflectance ...
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... Dr. Leon Poladian, Shelly Wickham Applied Physics: Professor ... 00 43.21 59.61 61.28 53.89 38.91 2211.00 43.28 59.47 61.15 53.80 38.98 2212.00 43.32 ...
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The hair shaft contains abundant mitochondrial DNA. ... is used many times to connect the suspect to the victim or to the crime scene. ...
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Sources of Fibers Classification of Fibers Synthetic Fibers A wide variety ... (nylon) Inorganic: produced from metals ... cross-sectional shape of the polymer ...
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The earliest methods for examining physical evidence relied solely on the ... emissions from the elements lead (Pb), antimony (Sb), and barium (Ba) present in ...
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Case Management Issues from Crime Scene to Court Room Robert A. Jarzen, Director Laboratory of Forensic Services Crime Scene to Court Room Evolution of Trace Evidence ...
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Fibers as Evidence Another example of trace evidence Collection of Fabric Evidence Bag fabric items individually in paper bags. Make sure that different items are not ...
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Chapter 8 Hair, Fibers, And Paint * * Fiber Evidence Compositional differences Dyes that were applied to fibers during the manufacturing process ...
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It's embedded with the pigment granules that impart hair with color ... nylons, polyesters, and acrylics * polymers basic. substance of all. synthetic fibers ...
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Hair and Mitochondrial DNA. Mitochondrial DNA can be extracted from the hair shaft. Mitochondrial DNA is found in cellular material located outside of the nucleus ...
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unit 3: forensic physics
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Chapter 8 HAIR, FIBERS, AND PAINT Introduction Hair is encountered as physical evidence in a wide variety of crimes. Although it is not yet possible to individualize ...
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Wavelength varies from 400 to 700 nm. Different wavelengths of light ... The Psychophysics of Color. Tested using a split field ... Psychophysics of ...
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... items like explosives and LSD since it does not ... ( Cat hair medulla looks like a string of pearls. ... The hairs must be from the scalp or pubic hair. ...
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Fiber & Hair Analysis Nature of contact Can determine the # of fibers transferred & value placed on their discovery Violent physical contact of an extended duration ...
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Be able to understand importance of Fiber Transfer ... Examples: wool, mohair, cashmere, furs, and cotton. Man-made fibers are manufactured. ...
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... region of mink hairs and on the fur hairs of seals, cats, and some other animals. ... Fur or wool hairs that form the inner coat of an animal and provide ...
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... Processing raw material from cotton/wood pulp and extracting cellulose The cellulose may be chemically treated and dissolved in a ... nylon, polyester, ...
