Advances in Fingerprint Technology.pdf

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Figure 7.7 Comparison of a ninhydrin print on a forged check with patterned background before (top left) and after Ag-PD treatment (top right) and after subtracting the patterned background using digital FFT methods (bottom). nucleating sites so that good contrast is obtained with silver amplification. For porous surfaces, some investigators have found the MMD method results in excessive background development. This will occur if the unbound gold (i.e., gold particles that get occluded in the paper fibers) is not properly removed. This is why the washing procedure after the gold treatment is very important.
Formulation and Procedure 29 Colloidal Gold Solution (Gold Sol) To prepare this solution, one needs a 10% (w/v) tetrachloroauric acid stock solution, a 1% (w/v) trisodium citrate stock solution, a 0.5 M (9.6% w/v) citric acid stock solution, and Tween 20 (a non-ionic surfactant/detergent). The stock solutions must be made with distilled or deionized water (i.e., it must be free of divalent ions, chlorine, and organic substances). These stock solutions are stable indefinitely. To prepare 1 l of the colloidal gold working solution, add 1 ml of the 10% tetrachloroauric acid stock solution to 1 l distilled water and bring to a boil. Rapidly add 10 ml of the 1% trisodium citrate stock solution and continue boiling gently for 10 min. The resulting colloidal gold solution should be “port wine” in color. Turn off the heat and add 5 ml Tween 20. Mix well and let cool to room temperature. When cool, add 10 ml of a 1% polyethylene glycol (molecular weight 10–15,000) and adjust the pH to 2.7 with 0.5 M citric acid (about 1 ml). Restore the volume to 1 l with distilled water. Store in clean glass or plastic container in a refrigerator. The gold sol is stable for at least 3 months. The gold colloidal particles prepared in this way have an average size of about 30 nm. Margot and Lennard 3 use 15 ml trisodium citrate instead of 10 ml and exclude the polyethylene glycol. Modified Silver Physical Developer Two stock solutions are needed: a ferrous/ferric redox couple stock solution and a 20% (w/v) silver nitrate solution. These stock solutions have an indefinite shelf life when stored in clean glass bottles (dark glass for the silver nitrate solution). The redox stock solution is prepared by sequentially dissolving into 1 l distilled water, 33 g ferric nitrate nonahyrate, 89 g ferrous ammonium sulfate hexahydrate, 22 g citric acid, and 1 ml Tween 20. The working solution (the modified silver physical developer) is prepared by adding one part 20% silver nitrate solution to 99 parts of redox solution. The working solution should be prepared just prior to using because it is only stable for about 15 min. Saunders later revised the formulation of the redox stock solution to be about half as concentrated (16 g ferric salt, 43 g ferrous salt, 11 g citric acid, and 0.25 ml Tween 20). This provides the same results but less quickly. There are two points to be noted. First, a non-ionic surfactant is used instead of a more stabilizing cationic surfactant. Cationic surfactants prevent the silver from depositing around the bound gold particles. One reason for this may be that the bound gold particles are not fully neutralized and the cationic surfactant surrounds them, forming a protective shield that keeps out silver ions. Second, the amount of silver in the final developer is sufficiently low
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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
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Figure 2.7 Example of pressure dist
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9. Mairs, G., Novel method of print
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DNA From Latent Prints DNA From Blo
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Figure 3.1 A schematic diagram show
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Figure 3.3 A schematic diagram of t
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(5 to 12 µg/L), bromide (0.2 to 0.
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electrophoresis (SDS-PAGE) include
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Table 3.3 Anatomical Variation in t
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Various oxidative and bacteriologic
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acid content can change with time i
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are of sebaceous origin. 82 Approxi
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Table 3.7 Changes in Surface Lipid
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gland’s activity. The more active
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content. 108 Palmitic acid was foun
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Figure 3.4a A chromatogram of a fin
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various lipid classes found in a la
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of DNA using RFLP. 130 No adverse e
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was later found to be caused by the
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17. Seutter, E., Goedhart-De Groot,
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52. Downing, D. T., Strauss, J. S.,
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85. Summerly, R., Yardley, H. J., R
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120. Duff, J. M. and Menzel, E. R.,
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149. Kloosterman, A., Application o
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Coumarin 540 Dye Staining Method An
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visualization of latent fingerprint
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White powder Dolomite, starch powde
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Fluorescein solution (in methanol/w
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Notes: Dissolve the MoS 2 in the di
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4. Avoid inhaling any iodine fumes
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CN CN CN A - A - CH2 C COOR CH2 C C
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Large vacuum chambers for processin
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Gentian Violet Solution — Non-Phe
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Table 4.1 Approximate Absorption an
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and recorded by autoradiography. Ni
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Ninhydrin solutions may be applied
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of development of ninhydrin-treated
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and certain nonreactive surface mat
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Procedure Xylene 50 mL Petroleum et
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ehavior of Ruhemann’s purple-meta
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4. Rinse the specimen in tap water.
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een treated with ninhydrin. In addi
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Working solution Stock solution 6 m
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Note: Combine and stir until citric
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Zauner 181 noted that on a rare occ
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3. Expose the tape surface to a hig
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lifting media were used, followed b
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under certain circumstances. The Br
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Physical Methods Visual Examination
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DRY Super Glue Fuming Powder Dustin
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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
Page 224 and 225: purposes of understanding their pho
Page 226 and 227: Ar-laser image monitor lens light c
Page 228 and 229: laser Figure 6.6 Block diagram of p
Page 230 and 231: step 1 step 2 step 3 fingerprint co
Page 232 and 233: nanocrystals. Photoluminescent semi
Page 234 and 235: Figure 6.11 Photoluminescence of fi
Page 236 and 237: H H H H N N CH2CH2 CH2CH2 H N N H N
Page 238 and 239: sample, rather than preferential ad
Page 240 and 241: O R C OH + R' NH2 R C Figure 6.16 G
Page 242 and 243: The amidation reaction depicted in
Page 248 and 249: R 1 - COOH + HO - N R 1 O C N H Fig
Page 250 and 251: 29. Sooklal, K., Hanus, L.H., Ploeh
Page 252 and 253: Procedure Water and Acid Pretreatme
Page 254 and 255: The Silver Physical Development Pro
Page 256 and 257: (in the emulsion) the silver and si
Page 258 and 259: ions (found only on paper that has
Page 260 and 261: as that of print residue on porous
Page 262 and 263: + + + + + + + Cit 3- Cit 3- Cit 3-
Page 264 and 265: Saunders. 22 Both workers recognize
Page 266 and 267: Figure 7.2 Scanning electron micros
Page 268 and 269: paper and these convert to ferric o
Page 270 and 271: Water and Acid Pretreatments The wa
Page 272 and 273: Figure 7.4 Comparison of a ninhydri
Page 276 and 277: (0.2%) to not form silver oxide whe
Page 278 and 279: X-Ray and Scanning Electron Microsc
Page 280 and 281: is much to be done to optimize the
Page 282 and 283: 3. Margot, P. and Lennard, C., Fing
Page 284 and 285: 35. Morris, J.R. and Wells, J.M., A
Page 286 and 287: Introduction More than a century ha
Page 288 and 289: False Reject Rate (FRR) Civilian Ap
Page 290 and 291: Fingerprint Quality Acquisition Est
Page 292 and 293: finger gets mapped onto the two-dim
Page 294 and 295: (a) (b) (c) Figure 8.3 Fingerprint
Page 296 and 297: In forensics, a special kind of ink
Page 298 and 299: L A B (a) Finger Friction Surface R
Page 300 and 301: Fingerprint Representation A finger
Page 302 and 303: (a) (b) (c) (d) Figure 8.8 A finger
Page 304 and 305: Figure 8.10 Relative configuration
Page 306 and 307: A minutiae feature extractor finds
Page 308 and 309: depicting a ridge in the fingerprin
Page 310 and 311: 1. Singular points. The Poincare in
Page 312 and 313: Table 8.2 shows the results of the
Page 314 and 315: (a) (b) Figure 8.13 Two different i
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Page 318 and 319: (a) (b) Figure 8.16 Fingerprinting
Page 320 and 321: 0.5 -0.5 -1 200 1 0.8 0.6 0.4 0.2 1
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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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