Advances in Fingerprint Technology.pdf

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paper and these convert to ferric oxide (Fe 2O 3 or rust) and silver oxide (brownblack Ag 2O), respectively, upon drying. To avoid this, alkaline paper is neutralized by treating it with acid. The acid, however, must not be a chlorinated acid (such as hydrochloric acid) because this introduces chloride ions, which react with silver to produce photosensitive silver chloride. Hardwick 20 introduced the use of maleic acid. The concentration currently used is 2.5% (w/v). The Forensic Science Services (FSS) in London, U.K. uses a dilute solution (1%) of nitric acid. 25,26 Others have used a 2.5% (w/v) malic acid solution, which is less costly than maleic acid. Household vinegar (5% acetic acid) works as well. 27 The paper is treated until all bubbling ceases. The net reaction that takes place is: CaCO 3 + 2H + → Ca 2+ + H 2O + CO 2 (gas) (7.14) Preparation and Use of the Silver Physical Developer Preparation During preparation of the reagents associated with the silver physical development process, protective attire such as gloves, labcoat, protective eyewear, and mask should be worn. All containers used during the process should be rinsed with distilled water prior to use. The Acid Pretreatment Reagent Acids containing chlorine (e.g., hydrochloric acid) should not be used. A maleic acid solution is recommended, although as indicated above, dilute nitric or acetic acid also work. The maleic acid solution is made by thoroughly mixing 25 g maleic acid into 1 l distilled water. This solution has an indefinite lifetime. The Silver Physical Developer Reagent The following formulation is for the UK-PD. 1-4,13,15 It involves preparing three stock solutions and a working solution from these. The three stock solutions are made as follows and in the order given: 1. Ferrous/ferric redox solution (with citric acid) stock solution: a. Measure 900 ml distilled water into a clean container. b. Thoroughly dissolve 30 g ferric nitrate (nonadyrate) into the distilled water. c. Thoroughly dissolve 80 g ferrous ammonium sulfate (hexahydrate) into the above solution.
d. Thoroughly dissolve 20 g citric acid (anhydrous) into the above solution. e. The final solution should contain no undissolved crystals. 2. Detergent solution a. Measure 1 l distilled water into a clean container. b. Thoroughly dissolve 4 g n-dodecylamine acetate into the distilled water. c. Thoroughly dissolve 4 g Synperonic-N into the above solution. 3. Silver nitrate solution a. Measure 100 ml distilled water into a clean container. b. Thoroughly dissolve 20 g silver nitrate into the distilled water. c. Once the silver nitrate has totally dissolved, store the solution in an amber glass bottle. These stock solutions have an indefinite lifetime. The detergent solution may have a slightly cloudy appearance while the other two solutions should be clear. The working solution is made as follows and in the order given: • Measure 900 ml redox solution into a clean container. • Add 40 ml detergent solution to the above solution and thoroughly mix for approximately 5 min. • Add 50 ml silver nitrate solution to the above solution and thoroughly mix for about 5 min. The lifetime of the working solution is between 1 and 2 weeks. If a white precipitate begins to form at the bottom of the container, a new solution should be made. The Hypochlorite Post-Treatment Reagent This reagent consists of a 1:1 (v/v) dilution of a household “chlorine” bleach with water (50% dilution). These bleaches contain between 5 and 6% sodium hypochlorite. Some use a 3:1 (v/v) water:bleach solution (25% dilution). This solution is stable indefinitely. Procedure In the procedure used by the U.S. Secret Service, one clean glass tray is used for all the treatments: water pre-wash, acid pre-wash, Ag-PD treatment, and hypochlorite post-wash. The solutions are disposed of properly (check local regulators) after each step. In some cases, the Ag-PD and maleic acid can be reused; however, this depends on the number of items processed and the nature of the contaminants on the items (e.g., reagents are not reused if they processed items with biohazardous contaminants).
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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
Page 218 and 219: 116. Kobus, H.J., Pigou, P.E., Dell
Page 220 and 221: 147. Dayan, S., Almog, J., Khodzhae
Page 222 and 223: 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
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Page 264 and 265: Saunders. 22 Both workers recognize
Page 266 and 267: Figure 7.2 Scanning electron micros
Page 270 and 271: Water and Acid Pretreatments The wa
Page 272 and 273: Figure 7.4 Comparison of a ninhydri
Page 274 and 275: Figure 7.7 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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(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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