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Originally written by Russell A. Gregory out of his three decades of experience and expertise, the fourth edition of this popular book has been ably revised by Shri K. Kumar. It completely covers equipment and techniques used in the analysis of handwriting, typewriting, printed matter, fingerprints and firearms. It also contains a section on expert evidence.
With a view to giving the reader a deeper insight into the subjects of identification, the revising author has enlarged the book and added fresh material relating to the recent developments in science and their application. Details of novel techniques that are quick, sensitive and more accurate, and are in keeping with the modern techniques being adopted by the present day criminals have also been given. All this makes the book more useful and an asset in sorting out cases of conflicting opinions given by different experts.
A must for legal practitioners, police officers, law enforcement agencies, courts and others concerned with this field.
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PREFACE TO THE FOURTH EDITION V PREFACE TO THE THIRD EDITION IX PREFACE TO THE FIRST EDITION X
Illustrations 3
Co-ordination of the writing muscles 8 Movement 8 Relative size of letters and words 9 Relative positioning of letter, words etc. 11 Slant and relative slant of letters, words, etc. 11 Alignment 12 Shape of letters 13 Method of production of letters 13 Line quality 14 Pen presentation and shading 14 Pen pressure 15 Arrangement of words, sentence and paragraphs 16 Rhythmic production of writing 16 Speed of writing 16 Embellishment 16 Arrangement of Handwriting 16 Skill 17 Individual Idiosyncrasies 17
Introduction 18 Preliminary question for determination 18 What the documents laboratory can do 20 Problems which cannot be solved in a Documents laboratory 20 Standard for comparison 23 Procedure for obtaining suitable standards for comparison 24 Standard materials for comparison with typewritten matter 26 Care of Documents 27 Instructions for Collection and Packing on Exhibits 28
Introduction 29 The Laboratory itself 29 Working Bench 29 Lighting Arrangement 29 Natural light 30 Electromagnetic Radiations 30 Ultra-voilet Rays 31 Uses of Ultra-violet rays in other fields of investigation 34 Colour of the object to be photographed 35 Typical and convenient equipment 36 Infra-red rays 37 Emission 38 Optical Equipments 39 Microscope 40 Measuring instruments 41 Photographic equipment 43 Document photography 43 Chromoscope 44 Electron Microscope 45 Thin layer chromatography 46 Video spectral comparator 47
Pens 49 Pencil 50 Tests for distinction 51 Chemical or destructive tests 52 Inks 53 Fountain-pen ink 54 Fibre-tip pens 56 Problems in examination 56 Methods of examination 56 Paper 57 Manufacture of paper 58 Classification of paper material 59 Tests for papers 59
Introduction 61 Classification of makes and models of typewriters in India 62 Identification of typewriter 63 General consideration 63 Individual characteristics 65 Has the whole document been typed on the same typewriter 66 Has the whole document been typed at the same time 66 Thin layer chromatography 67 Identification of the operator 68 Times since typed 69
Introduction 70 Classification of anonymous letters 71 Typical cases and investigations 72
Introduction 76 Unusual writing conditions 76 Intentional 77 Disguised writing 77 Important features of disguised writings 79 Writings by unaccustomed hand 80 Habitual writings 84 Examination for finger-print impressions 85
Introduction 86 Classification of forgeries 86 Traced forgery characteristics 89 Examination and court demonstration 89
Introduction 91 Graphoscopy 91 General characteristics 92 Individual characteristics 94 Graphometry 95 Technique of Graphometric Analysis 96 General Rule of measurement 96
Introduction 101 Printing Press 101 Mechanical type setting 102 Printing technology 102 Type characters 102 Approximate size of type in General use 102 Composing 103 Monotype 103 Forgery in Lottery Tickets 103 Alteration of the lottery ticket number to match the winning number 103 Forged printing 104 Forgery in currency notes 105 Distinction between a genuine and forged note 105 Spurious books 106
Introduction 108 Stabilization 108 Deciperment 109
Introduction 111 Alteration 111 Additions 111 Erasures 112 Invisible writings and their Decipherment 113 Cryptography 114
Mode of Proof of Handwriting 116 Value to be attached to lay witnesses 118 Probative value of Handwriting Expert's Opinion 118 Comparison of Handwriting/Signature by the Court 120 Knowledge of Script by the Expert 122 Conflict of opinion between two experts 122 Typewriter Identification 124 Effect of non-submission of expert's opinion 125 Forgery in, Currency Note 125
Introduction 129 Historical Background 129 Importance of Finger Impressions 131 Basis of Identification Through Finger Print 132 No. of points necessary to establish identity 132 The ridge characteristics of fingers do not undergo any change during an individual's lifetime 136 Fingerprints have such ridge patterns that permit them to be systematically classified 137
Patterns 138 Definitions 138 Congenital Abnormality 148 Dermabrasion 149 Occupational marks 150
Introduction 151 Characteristics formed by single ridge 151 Characteristics formed by two or more ridges 152
Introduction 154 Henry Classification System 154 Primary Classification System 154 The Secondary Classification System 156 The Sub-secondary Classification System 156 Whorl Tracings 157 Ridge counting 158 New Method of Ridge Counting and Ridge Tracing 159 Lettered Group Method 160 Major Divisional System 161 Single Digit System 162
Introduction 166 Development of Finger Impressions 166 Equipment for development at the scene of crime 171 Lifting of finger-print 171 Lifting tape 172 Silicon Rubber 172 Benzidine solution 172
Introduction 174 Method of taking Finger Impressions in Special Cases 175 Principle and Technique 177 Fingerprinting a decomposed dead body 177
Introduction 180 The Matrix Process (Albert Wehde) 180 The Fingerprint Stamp (Herald Cummins) 181 Process Block 181 Transmogrification, Scarification and Dermabrasions 181 Method of Examination 182 Intrinsic Examination 182 Extrinsic Study 183 Identity by Microscopic Ridge Details 185 Edgescopy 186 Palm (Hand) and Sole and Toe (Foot) Print 186 Sole Prints 189
Notable cases and case laws 191 Admissibility of Fingerprint evidence without the physical presence of expert 192 Expert's opinion on a partial print 193 Presentation of Fingerprint Evidence 193 Probative value of Fingerprint opinion 194 Thumb impression is a science of exactitude 195 Can a Magistrate direct a person to give thumb impression? 196 Footprint 197 Footprint/shoeprint comparisons 198
Examination in Chief 199 Examination-in-Chief (Questions & Answers) 200 Cross Examination 202
Historical outfit 208 Gradual development of firearms 209 The Wheel-Lock 210 The Flint-Lock 210 Percussion Lock 211 Breech Loading 211
Smooth bore weapons 213 Bore 213 Calibre 213 Exceptions 214 Shot-Guns 214 Single barrelled 214 Double barrelled Guns 215 Choke 216 Muskets 217 Mixed Guns 217 Paradox Guns 217 Rifled Arms 218 Effect of rifling 218 Types of Rifled small arms 218 Rifles 218 Pistols 219 Revolver 220 Sub-machine Guns 221 Light machine Guns 222 Air Guns and Air rifles 222 Assault Rifles 222
Composition of Ammunition 224 Grading of Black Powder 225 Semi-Smokeless Powder 226 Priming Mixture 226 Percussion Caps 226 Projectiles 227 Bullet 228 Cannelure 229 Shot-Gun Projectiles 229 Shots/Pellets 230 Wads 232 Turn over 233 Lubricants 233 Cartridge Shell 233
Identification from fired cartridge cases - Firing pin and breech-face markings 236 Extractor mark 237 Ejector marks 237 Drag mark 238 Chamber marks 239 Unusual marks 239 Bullets 239 Bullet fired through smooth-bore weapons 241 Identification from fired shots and bullets 241 Court decisions on identification 242 Importance of photograph for presentation of evidence 245
Maximum Horizontal Range 248 Maximum Vertical Range 248 Effective Range 248 Dangerous Range 248 Safe Range 248 Range in the forensic sense 249 Contact Range 249 Point Blank/Near Contact Range 249 Near Contact Range 250 Chips range 251 Distance beyond chips range 251 Range of bullets fired by rifles 251 Effect of bullet at range between 600-1200 yards 253 Effect at range exceeding 1200 yards 253 Wound caused by Machine guns 253 Case Laws 253
Introduction 256 Contact shot 256 Near contact shot 256 Range within 1 to 3 yards 257 Range between 3-6 yards 257 Range between 6 to 10 yards 257 Range beyond 40 yards 258 Range estimation from percentage of pellets on a given target 258 Wounding power and Casualty criteria 259 Behaviour of wads 260
Range assessment 262 Penetrating capability 263 Direction of Fire 263 Identification problems 264
Section 300 265 Suicide 266 Accident 266 Illustrative cases 268
Rules of safety 268 How to Disarm 268 How to deal with an armed suspect 270
Section 174: Criminal Procedure Code, 1973 272 Section 175: Criminal Procedure Code, 1973 273 Section 176: Criminal Procedure Code, 1973 273 Value of inquest report 274 Conflict between Inquest-Report & Post-mortem Report 274 Post-mortem examination 275
Importance of the inspection of the scene of occurrence 277 Effect of non-production of expert evidence 278 What are Arms and Ammunition 278
Introduction 283 When expert evidence is to be admitted 284 Common witness vis-a-vis expert witness 285 Who are experts? 286 Competency of expert 287 Qualities of an expert 288 Judicial approach 289 Expert Evidence should be Demonstrative 290
Introduction 291 Court Procedure and the witness 291 Mode of Issue of Summons 291 Administration of Oath 292 Recall witness 293 Hints on Giving Evidence 294 Preparation of the testimony 294 Some Do's and Don'ts 295 SUBJECT INDEX 297
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