Advances in Fingerprint Technology.pdf

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jury but looked down at the floor instead. After a short deliberation, the defendant was found guilty. A poll of the jury brought out the fact that one of the major factors in their guilty verdict was that during his testimony, the defendant had not looked them in the eye. Pause Before Answering Questions Although the expert generally knows what the responses will be to questions on direct examination, the witness should allow a momentary pause before answering the question. This pause serves a twofold purpose: • It gives the opposing attorney an opportunity to object to the question. Objections provide the witness with an excellent opportunity to collect thoughts and to formulate answers. • If there is a momentary pause before an answer is given on direct examination, then, under cross-examination when there is also a pause before an answer, the pause is not as noticeable. If the response on direct examination is very quick, however, a momentary pause before the answer is given during cross-examination will be very noticeable. Sometimes inadvertently, or by design, the prosecutor or the defense attorney may interrupt the expert before he/she has finished answering the question. If this happens, the expert should tell the judge and should ask for permission to finish the response. Modification of Response At times it may be necessary to modify a response. It is not mandatory to answer yes or no to a question just because the attorney demands a yes or no answer. The expert need only turn to the judge and advise that the question cannot be answered with a yes or no and that he/she would like permission to more thoroughly explain the answer. The judge rarely denies a request of this type. If the expert does not know the answer to a question, of course, then this should be acknowledged. In lieu of replying, “I do not know,” the expert should give consideration to responding, “I have no personal knowledge.” For an expert to continually answer, “I do not know” may give the appearance that the expert is not a very knowledgeable witness. The following are examples of questions that are difficult to answer with a yes or no: Question: Have you ever made a mistake? A suggested response is “In any field of human endeavor, there can be oversights. However, of one thing I am very sure. I have never made a mistake in presenting evidence in court.”
Question: Are you telling this court that you have never told a lie? A suggested response is “Never while under oath.” Mannerisms of Speech Certain speech mannerisms can be very damaging. For example, the expert should not preface comments with, “I can truthfully say.” The implication is that the rest of the time the expert is not telling the truth. Double negatives or double positives (i.e., “No I did not” or “Yes I did”) are redundant and unnecessary. A simple yes or no suffices. Comparisons in Court If a request is made to conduct comparisons while in court, the expert should ask the judge for a recess and a room with adequate lighting where the examination can be conducted in private. The expert should ask for more time than will probably be needed. This ensures that the expert will have adequate time in case the difficulty of the comparisons has been underestimated. The expert can use the extra time to organize his/her thoughts before retaking the witness stand. Although the expert could have conducted the comparison in the courtroom in a matter of just a few minutes, it is wise to request the time. A quick courtroom comparison may encourage the jury to conclude that the witness is careless and less than thorough and that anyone can conduct latent print comparisons without difficulty. Fingerprint expertise is based on many years of training and experience. To maintain the integrity of the fingerprint profession, the expert should always counsel the court and jury that the science of fingerprints is a profession requiring exceptionally high levels of knowledge, skills, and abilities, which can only be attained through experience, education, training, and dedication. Discussion of Case The expert must be careful to discuss the case only with those persons who have a legal need to know. Those individuals include the expert’s supervisor and the prosecutor. Talking indiscriminately can be disastrous: the person the expert talks to within the courthouse could be a prospective juror. During a recess at the trial, the defense attorney may send his/her representatives out into the hallways to observe and listen. If a member of the press or anyone else should ask the expert any questions, the expert should politely but firmly refer them to the prosecutor. Any statements that are given may be restated to improper persons, or even misstated. It is a sound policy to stand aloof from everyone except the attorney who retains you to testify.
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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
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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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Page 366 and 367: Table 9.1 Kingston’s Relative Fre
Page 368 and 369: minutia counts in different-sized r
Page 370 and 371: If one is to use the compound forms
Page 372 and 373: Osterburg Model (1977-1980) Descrip
Page 374 and 375: of any occurrences that appear in t
Page 376 and 377: minutiae. Both the Kingston and Ost
Page 378 and 379: minutia orientation results in regi
Page 380 and 381: Orientation for minutiae was define
Page 382 and 383: the allowable combinations of minut
Page 384 and 385: selected for the study, based on th
Page 386 and 387: Table 9.4 Champod’s Upper Bound F
Page 388 and 389: that Champod and Margot proved to b
Page 390 and 391: fingerprint was isolated. This area
Page 392 and 393: that, for the experiments as design
Page 394 and 395: can be encouraged by the dedication
Page 396 and 397: 37. Amy, L., Valeur de la preuve en
Page 398 and 399: The Expert Fingerprint Witness ROBE
Page 400 and 401: Qualifications of the Fingerprint E
Page 402 and 403: 7. Results of comparisons conducted
Page 404 and 405: granted for a pretrial conference,
Page 406 and 407: any examination that I have conduct
Page 408 and 409: to fully understand the meaning of
Page 410 and 411: When seated in the witness stand, t
Page 414 and 415: Courtroom Courtesy When in court, i
Page 416 and 417: If the attorney does not have the p
Page 418 and 419: Glossary of Commonly Used Courtroom
Page 420 and 421: Indictment An accusation in writing
Page 422 and 423: APPENDIX Daubert Hearings EDWARD GE
Page 424 and 425: The U.S. Government set presented e
Page 426: Presided over by the Honorable J. C
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