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Fingerprint Development Techniques Fingerprint Development Techniques Fingerprint Development Techniques Theory and Application Stephen M. Bleay Home Office Centre for Applied Science and Technology, Sandridge, UK Ruth S. Croxton School of Chemistry, University of Lincoln, UK and Marcel de Puit Ministerie van Veiligheid en Justitie, Nederlands Forensisch Instituut, Digitale Technologie en Biometrie, The Hague, The Netherlands This edition first published 2018 © 2018 John Wiley & Sons Ltd All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions. The right of Stephen M. Bleay, Ruth S. Croxton and Marcel de Puit to be identified as the authors of this work has been asserted in accordance with law. Registered Offices John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK Editorial Office The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK For details of our global editorial offices, customer services, and more information about Wiley products visit us at www.wiley.com. Wiley also publishes its books in a variety of electronic formats and by print‐on‐demand. Some content that appears in standard print versions of this book may not be available in other formats. Limit of Liability/Disclaimer of Warranty While the publisher and authors have used their best efforts in preparing this work, they make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives, written sales materials or promotional statements for this work. The fact that an organization, website, or product is referred to in this work as a citation and/or potential source of further information does not mean that the publisher and authors endorse the information or services the organization, website, or product may provide or recommendations it may make. This work is sold with the understanding that the publisher is not engaged in rendering professional services. The advice and strategies contained herein may not be suitable for your situation. You should consult with a specialist where appropriate. Further, readers should be aware that websites listed in this work may have changed or disappeared between when this work was written and when it is read. Neither the publisher nor authors shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. Library of Congress Cataloging‐in‐Publication data applied for Hardback ISBN ‐ 9781119992615 Cover design by Wiley Cover images: (Background) © chokkicx/Gettyimages; (Fingerprint images) Courtesy of Stephen M. Bleay Set in 10.5/12.5pt Times by SPi Global, Pondicherry, India 10 9 8 7 6 5 4 3 2 1 Contents Series Preface xi Acknowledgements xiii 1 Introduction 1 Stephen M. Bleay and Marcel de Puit References 10 2 Formation of fingermarks 11 Stephen M. Bleay and Marcel de Puit 2.1 Introduction 11 2.2 Initial contact 12 2.3 Interaction outcomes 13 2.4 The finger 17 2.5 The surface 24 2.6 Removal of the finger from the surface 30 2.7 Summary of the initial contact 32 References 33 3 Composition and properties of fingermarks 35 Ruth S. Croxton, Stephen M. Bleay and Marcel de Puit 3.1 Chemical composition of fingermarks 35 3.2 Biological properties of fingermarks 55 3.3 Physical properties of fingermarks 57 References 62 4 Ageing of fingermarks 69 Stephen M. Bleay and Marcel de Puit 4.1 The ‘triangle of interaction’ 69 4.2 The fingermark 70 4.3 The surface 70 4.4 The environment 78 4.5 Interactions 81 4.6 Time 94 References 96 vi CONTENTS 5 Initial examination and the selection of fingermark enhancement processes 99 Stephen M. Bleay 5.1 Introduction 99 5.2 Processing options 100 5.3 Process selection 103 5.4 The processing environment 105 References 109 6 Optical detection and enhancement techniques 111 Stephen M. Bleay 6.1 Introduction 111 6.2 Current operational use 116 6.3 Visual examination 117 6.4 Fluorescence examination 125 6.5 Ultraviolet reflection 138 6.6 Infrared reflection 141 6.7 Colour filtration and monochromatic illumination 144 6.8 Multispectral imaging 149 References 151 Further reading 153 7 Vapour phase techniques 155 Stephen M. Bleay and Marcel de Puit 7.1 Introduction 155 7.2 Current operational use 156 7.3 Superglue/cyanoacrylate fuming 158 7.4 Vacuum metal deposition 172 7.5 Iodine fuming 181 7.6 Radioactive sulphur dioxide 185 7.7 Other fuming techniques 189 References 193 Further reading 196 8 Solid phase selective deposition techniques 199 Stephen M. Bleay 8.1 Introduction 199 8.2 Current operational use 200 8.3 Powders 201 8.4 ESDA 213 8.5 Nanoparticle powders 216 References 219 9 Amino acid reagents 221 Stephen M. Bleay 9.1 Introduction 221 9.2 Current operational use 223 CONTENTS vii 9.3 Ninhydrin 224 9.4 1,8‐Diazafluoren‐9‐one 231 9.5 1,2‐Indandione 237 9.6 Ninhydrin analogues 242 9.7 Fluorescamine 246 9.8 o‐Phthalaldehyde 250 9.9 Genipin 252 9.10 Lawsone 256 9.11 Alloxan 259 9.12 4‐Chloro‐7‐nitrobenzofuran chloride 260 9.13 Dansyl chloride 262 9.14 Dimethylaminocinnemaldehyde and dimethylaminobenzaldehyde 263 References 268 Further reading 272 10 Reagents for other eccrine constituents 275 Stephen M. Bleay 10.1 Introduction 275 10.2 Current operational use 276 10.3 4‐Dimethylaminocinnamaldehyde 277 10.4 Silver nitrate 279 References 281 Further reading 282 11 Lipid reagents 283 Stephen M. Bleay 11.1 Introduction 283 11.2 Current operational use 285 11.3 Solvent Black 3 (Sudan Black) 286 11.4 Basic Violet 3 (Gentian Violet, Crystal Violet) 290 11.5 Oil Red O (Solvent Red 27) 295 11.6 Iodine solution 297 11.7 Ruthenium tetroxide 299 11.8 Osmium tetroxide 301 11.9 Europium chelate 302 11.10 Natural Yellow 3 (curcumin) 305 11.11 Nile Red and Nile Blue A 308 11.12 Basic Violet 2 311 11.13 Rubeanic acid–copper acetate 313 11.14 Phosphomolybdic acid 315 References 317 Further reading 320 12 Liquid phase selective deposition techniques 321 Stephen M. Bleay 12.1 Introduction 321 12.2 Current operational use 323 viii CONTENTS 12.3 Small particle reagent 326 12.4 Powder suspensions 330 12.5 Physical developer 336 12.6 Multi‐metal deposition 345 References 352 Further reading 355 13 Enhancement processes for marks in blood 357 Stephen M. Bleay 13.1 Introduction 357 13.2 Current operational use 361 13.3 Protein stains 363 13.4 Peroxidase reagents 369 References 380 Further reading 381 14 Electrical and electrochemical processes 383 Stephen M. Bleay 14.1 Introduction 383 14.2 Current operational use 385 14.3 Etching 386 14.4 Corrosion visualisation 388 14.5 Electrodeposition 392 References 397 Further reading 399 15 Miscellaneous processes: lifting and specialist imaging 401 Stephen M. Bleay 15.1 Introduction 401 15.2 Current operational use 403 15.3 Lifting 404 15.4 Scanning electron microscopy 407 15.5 X‐ray fluorescence (and X‐ray imaging) 410 15.6 Secondary ion mass spectroscopy (SIMS) 413 15.7 Matrix‐assisted laser desorption/ionisation mass spectrometry (MALDI‐MS) 414 15.8 Attenuated total reflection Fourier transform infrared spectroscopy (ATR‐FTIR) 415 References 417 Further reading 419 16 Evaluation and comparison of fingermark enhancement processes 421 Stephen M. Bleay 16.1 Introduction 421 16.2 Technology Readiness Level 3: Proof of concept 423 16.3 Technology Readiness Level 4: Process optimisation 425 16.4 Technology Readiness Level 5: Laboratory trials 427 CONTENTS ix 16.5 Technology Readiness Level 6: Pseudo‐operational trials 437 16.6 Technology Readiness Level 7: Operational trials 439 16.7 Technology Readiness Level 8: Standard operating procedures 439 16.8 Technology Readiness Level 9: Ongoing monitoring 440 References 440 17 Sequential processing and impact on other forensic evidence 443 Stephen M. Bleay and Marcel de Puit 17.1 Sequential processing of fingermarks 443 17.2 Test methodologies for developing processing sequences 449 17.3 Integrated sequential forensic processing 453 References 466 18 Interpreting the results of fingermark enhancement 469 Stephen M. Bleay 18.1 Introduction 469 18.2 Location of the mark 471 18.3 Type of substrate 473 18.4 Constituents of the mark 478 18.5 Enhancement process 480 18.6 The environment 482 18.7 Image processing 483 18.8 Image capture 484 References 487 Index 489 Series Preface Developments in forensic science Practising forensic scientists are constantly striving to deliver their very best in the service of national and international justice. As many types of forensic evidence come under increased scrutiny, the onus is on the forensic science community in partnership with academic researchers, law enforcement and the judiciary to work together to address these challenges. We must have confidence in the scientific vali- dation of the methods used to develop forensic evidence and in how that evidence is correctly and scientifically interpreted within a case context so that it can be admit- ted within our criminal justice systems with confidence. As we develop new knowledge and address the research and practical application of science within the forensic science fields, the consolidation, scientific validation and dissemination of new technological innovations and methods relevant to foren- sic science practice also become essential.
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