Advances in Fingerprint Technology.pdf

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White powder Dolomite, starch powder Gray powder Kaolin, aluminum flake powder The following factors should ordinarily be considered in the selection of a fingerprint powder: 1. The surface should be suitable for powder dusting and not itself attractive to fingerprint powder (such as polyethylene). 2. The color of the fingerprint powder should be selected to give maximum contrast with the surface on which the latent print was deposited. 3. The powder must adhere well to the deposits left by the friction skin ridges of a finger or palm. 4. The particle size of the powder should be fine enough to yield good, clear ridge patterns. Generally, fingerprint powder is applied to the surface bearing the latent print with a fingerprint brush. These brushes are distinguished according to the types of fibers used to make them. Occasionally, powder can be applied to the surface by means of an atomizer, aerosol spray, or electrostatic apparatus. When applying powder with a fingerprint brush, extreme care should be taken to avoid damaging the latent print. Valuable fingerprint evidence is occasionally destroyed by carelessness in the application of powder. James et al. have looked carefully at this problem and recommended techniques and types of brushes for best avoiding it. 10 The following is a generalized procedure for developing latent prints with fingerprint powder: 1. Visually search the surface to identify possible latent print deposits. 2. If a fingerprint is found, it should be photographed using an appropriate photographic technique. 3. Select an appropriate fingerprint powder and brush. When in doubt, make a test print to help in choosing the best powder and brush for the circumstances. 4. Carefully apply the powder to the surface with a light brushing action. 5. Remove the excess powder by dusting the surface with a gentle, smooth motion until the best fingerprint image has been developed. 6. Photograph useful fingerprints in situ. The photograph should contain all the necessary case information and the latent print number. 7. Apply a suitable fingerprint lifting tape and carefully lift the powdered latent print from the surface. 8. Examine the latent lift and if necessary reprocess or relift the original latent print.
An alternative technique was proposed by Barron, Haque, and Westland 11 in which a freeze and thaw method was used before dusting with fingerprint powder. James et al. milled aluminum-based and other powders to determine the optimal particle size (5 to 10 µm long and 0.5 µm thick) and stearic acid content (3 to 5%) for latent fingerprint development. 12 A variation on the usual powder dusting procedures, but which can nevertheless be considered a kind of “powder” development technique, was described by Waldock. 13 A camphor candle was used to produce soot that could “coat” the latent print. Organic Fingerprint Powders Many commercial fingerprint powders contain toxic inorganic chemicals such as lead, mercury, cadmium, copper, silicon, titanium, and bismuth. Long-term exposure to them may present a health hazard. The use of organic fingerprint powders for latent print dusting was suggested by Kerr, Haque, and Westland. 14 A typical powder formula consists of the following: Potassium bromide 1 g Cornstarch 35 g Distilled water 25 mL The procedure that was used to prepare the organic fingerprint powder was as follows: 1. Dissolve 1 g potassium bromide in 25 mL distilled water. 2. Slowly dissolve 35 g cornstarch in the above solution with constant stirring. 3. Dry the cornstarch mixture at room temperature for 7 days. 4. The solid mass is periodically ground with a mortar and pestle over the drying period to produce a finer powder. 5. The powder is stored in a tightly stoppered container containing anhydrous calcium sulfate as a desiccant. It was reported that cornstarch-based fingerprint powders yielded excellent results in developing latent prints on nonporous surfaces. In addition to regular cornstarch fingerprint powders, the same research group also reported on the use of organic-based fluorescent powders for latent print detection. 15 The following are several organic-based fluorescent fingerprint powders as reported by Kerr et al.: 15 Calcium sulfate 5–10% Dihydrate cornstarch 90–95%
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Advances in Advances Fingerprint Te
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Advances in Fingerprint Technology
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Preface The first edition of this b
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Acknowledgments We gratefully ackno
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Table of Contents Preface Acknowled
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History and Development of Fingerpr
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Figure 1.2 Basic fingerprint patter
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Figure 1.3 Portion of the prehensil
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Figure 1.4 Elliptical whorl. Theory
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The bricks, carefully laid and accu
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the megalithic builders, including
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made most of them. These “identif
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Figure 1.6 Nehemiah Grew. (Drawn by
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Figure 1.7 Right palm imprint in pl
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By kindly words of persuasion a ref
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Loop: Now if this oblique stripe by
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Figure 1.11 Dr. Ivan Vucetich. (Dra
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Sir Edward Henry and Sir William He
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in charge he undoubtedly supported
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1. Finding finger imprints on prehi
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Faulds edited seven issues of a fin
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much of his inspired research. For
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to the unrelenting efforts of Steeg
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and gathered around him a nucleus o
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I find that portions of palm imprin
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Identification of Latent Prints ROB
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Without it, no amount of further la
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work will quite often fare badly un
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Figure 2.3 Polygon method. Overlay
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Experience and Skill Although the t
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The initial identification of the l
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D5 D6 D7 I2 D8 D9 D10 No No No Reco
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D11 I4 No D12 D11 I5 D12-1 D7 D12-2
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D14 I7 D16 C3 D11 D14-2 D7 D14-3 C2
Page 72 and 73: Figure 2.7 Example of pressure dist
Page 74 and 75: 9. Mairs, G., Novel method of print
Page 76 and 77: DNA From Latent Prints DNA From Blo
Page 78 and 79: Figure 3.1 A schematic diagram show
Page 80 and 81: Figure 3.3 A schematic diagram of t
Page 82 and 83: (5 to 12 µg/L), bromide (0.2 to 0.
Page 84 and 85: electrophoresis (SDS-PAGE) include
Page 86 and 87: Table 3.3 Anatomical Variation in t
Page 88 and 89: Various oxidative and bacteriologic
Page 90 and 91: acid content can change with time i
Page 92 and 93: are of sebaceous origin. 82 Approxi
Page 94 and 95: Table 3.7 Changes in Surface Lipid
Page 96 and 97: gland’s activity. The more active
Page 98 and 99: content. 108 Palmitic acid was foun
Page 100 and 101: Figure 3.4a A chromatogram of a fin
Page 102 and 103: various lipid classes found in a la
Page 104 and 105: of DNA using RFLP. 130 No adverse e
Page 106 and 107: was later found to be caused by the
Page 108 and 109: 17. Seutter, E., Goedhart-De Groot,
Page 110 and 111: 52. Downing, D. T., Strauss, J. S.,
Page 112 and 113: 85. Summerly, R., Yardley, H. J., R
Page 114 and 115: 120. Duff, J. M. and Menzel, E. R.,
Page 116 and 117: 149. Kloosterman, A., Application o
Page 118 and 119: Coumarin 540 Dye Staining Method An
Page 120 and 121: visualization of latent fingerprint
Page 124 and 125: Fluorescein solution (in methanol/w
Page 126 and 127: Notes: Dissolve the MoS 2 in the di
Page 128 and 129: 4. Avoid inhaling any iodine fumes
Page 130 and 131: CN CN CN A - A - CH2 C COOR CH2 C C
Page 132 and 133: Large vacuum chambers for processin
Page 134 and 135: Gentian Violet Solution — Non-Phe
Page 136 and 137: Table 4.1 Approximate Absorption an
Page 138 and 139: and recorded by autoradiography. Ni
Page 140 and 141: Ninhydrin solutions may be applied
Page 142 and 143: of development of ninhydrin-treated
Page 144 and 145: and certain nonreactive surface mat
Page 146 and 147: Procedure Xylene 50 mL Petroleum et
Page 148 and 149: ehavior of Ruhemann’s purple-meta
Page 150 and 151: 4. Rinse the specimen in tap water.
Page 152 and 153: een treated with ninhydrin. In addi
Page 154 and 155: Working solution Stock solution 6 m
Page 156 and 157: Note: Combine and stir until citric
Page 158 and 159: Zauner 181 noted that on a rare occ
Page 160 and 161: 3. Expose the tape surface to a hig
Page 162 and 163: lifting media were used, followed b
Page 164 and 165: under certain circumstances. The Br
Page 166 and 167: Physical Methods Visual Examination
Page 168 and 169: DRY Super Glue Fuming Powder Dustin
Page 170 and 171: Visual Examination Photography Iodi
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References 1. Olsen, R. D., Scott
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36. Springer, E. and Bergman, P., A
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74. McCarthy, M. M., Evaluation of
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110. Mooney, D. G., Development of
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142. Pounds, C. A., Grigg, R., and
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175. Jones, R. J. and Pounds, C. A.
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213. Hebrard, J. and Donche, A., Fi
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245. Misner, A., Wilkinson, D., and
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Fingerprint Development by Ninhydri
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Figure 5.1 2,2-Dihydroxy-1,3-indane
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Figure 5.4 Formation of murexide (V
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Figure 5.6 The 1,3-dipole form of t
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less volatile 1,1,2-trichloroethane
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Key to Routes Primary Special Secon
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Specially designed cabinets for che
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the importance of cooling the objec
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Figure 5.10 Ninhydrin (I) and some
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een prepared and evaluated as finge
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Figure 5.14 The red pigment formed
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Figure 5.16 The fluorescent product
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16. Pounds, C.A. and Jones, R.J., P
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51. Jungbluth, W.O., Replacement fo
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87. Kent, T., An operational guide
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116. Kobus, H.J., Pigou, P.E., Dell
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147. Dayan, S., Almog, J., Khodzhae
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Figure 6.1 Ninhydrin/ZnCl 2 vs. nin
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purposes of understanding their pho
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Ar-laser image monitor lens light c
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laser Figure 6.6 Block diagram of p
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step 1 step 2 step 3 fingerprint co
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nanocrystals. Photoluminescent semi
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Figure 6.11 Photoluminescence of fi
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H H H H N N CH2CH2 CH2CH2 H N N H N
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sample, rather than preferential ad
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O R C OH + R' NH2 R C Figure 6.16 G
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The amidation reaction depicted in
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R 1 - COOH + HO - N R 1 O C N H Fig
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29. Sooklal, K., Hanus, L.H., Ploeh
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Procedure Water and Acid Pretreatme
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The Silver Physical Development Pro
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(in the emulsion) the silver and si
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ions (found only on paper that has
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as that of print residue on porous
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+ + + + + + + Cit 3- Cit 3- Cit 3-
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Saunders. 22 Both workers recognize
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Figure 7.2 Scanning electron micros
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paper and these convert to ferric o
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Water and Acid Pretreatments The wa
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Figure 7.4 Comparison of a ninhydri
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Figure 7.7 Comparison of a ninhydri
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(0.2%) to not form silver oxide whe
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X-Ray and Scanning Electron Microsc
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is much to be done to optimize the
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3. Margot, P. and Lennard, C., Fing
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35. Morris, J.R. and Wells, J.M., A
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Introduction More than a century ha
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False Reject Rate (FRR) Civilian Ap
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Fingerprint Quality Acquisition Est
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finger gets mapped onto the two-dim
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(a) (b) (c) Figure 8.3 Fingerprint
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In forensics, a special kind of ink
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L A B (a) Finger Friction Surface R
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Fingerprint Representation A finger
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(a) (b) (c) (d) Figure 8.8 A finger
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Figure 8.10 Relative configuration
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A minutiae feature extractor finds
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depicting a ridge in the fingerprin
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1. Singular points. The Poincare in
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Table 8.2 shows the results of the
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(a) (b) Figure 8.13 Two different i
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ox size is adjusted based on the es
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(a) (b) Figure 8.16 Fingerprinting
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0.5 -0.5 -1 200 1 0.8 0.6 0.4 0.2 1
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andpass filters and extracts ridges
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(a) (b) Figure 8.19 Examples of enh
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A significant implication of the ab
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or otherwise. Therefore, there are
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Conclusions and Future Prospects Fi
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WSQ-related illustrations (Figure 8
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37. Siemens. The ID Mouse from Siem
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69. L. Hong, A. Jain, and S. Pankan
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Trauring Model (1963) Description o
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correspondence in friction ridge de
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extreme variability of friction rid
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5. Trauring 19 6. Kingston 20 7. Os
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variation need have no relationship
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1. Fork directed to the right 2. Fo
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e closer to reality. In any case, t
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There is not only opportunity for c
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that, in practice, it is relative d
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e the probability that there will b
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Correction factors (G) were introdu
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fingerprint individuality into two
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appreciated that the number of tria
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a corresponding reference point is
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Table 9.1 Kingston’s Relative Fre
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minutia counts in different-sized r
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If one is to use the compound forms
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Osterburg Model (1977-1980) Descrip
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of any occurrences that appear in t
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minutiae. Both the Kingston and Ost
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minutia orientation results in regi
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Orientation for minutiae was define
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the allowable combinations of minut
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selected for the study, based on th
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Table 9.4 Champod’s Upper Bound F
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that Champod and Margot proved to b
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fingerprint was isolated. This area
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that, for the experiments as design
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can be encouraged by the dedication
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37. Amy, L., Valeur de la preuve en
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The Expert Fingerprint Witness ROBE
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Qualifications of the Fingerprint E
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7. Results of comparisons conducted
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granted for a pretrial conference,
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any examination that I have conduct
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to fully understand the meaning of
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When seated in the witness stand, t
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jury but looked down at the floor i
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Courtroom Courtesy When in court, i
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If the attorney does not have the p
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Glossary of Commonly Used Courtroom
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Indictment An accusation in writing
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APPENDIX Daubert Hearings EDWARD GE
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The U.S. Government set presented e
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Presided over by the Honorable J. C
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