Latent print processing guide / Stpehen P. Kasper, retired Detective, Town of Amherst Police Department, retired Senior Crime Laboratory Analyst, Florida Department of Law Enforcement.

Format:

Book

Author/Creator:

Kasper, Stephen P.

Language:

English

Subjects (All):

Fingerprints.

Fingerprints--Identification.

Criminals--Identification.

Criminals.

Physical Description:

xi, 189 pages : illustrations (some color) ; 23 cm

Place of Publication:

Amsterdam ; Boston : Elsevier/Academic Press, [2016]

Summary:

Latent prints are chance or accidental impressions left by friction-ridge skin on a surface, regardless of whether they are visible or invisible at the time of deposition. Recognition of evidence that may contain fingerprints and the processes that can develop these latent prints is crucial in preventing valuable evidence from being left undetected. Latent Print Processing Guide goes beyond the basic police training, covering latent prints in detail and providing first responders with adequate training and guidelines. To process latent prints, examiners use various techniques including electronic, chemical, cyanoacrylate, and physical method. Latent Print Processing Guide offers a broad understanding of latent print detection, development, and recovery, including insights on state of-the-art-technologies. Key Features, Includes history of latent print identification and some of the pioneers and their contributions. Defines the differences between chemical and physical processes and explains process sequence protocols and recovery methods for different types of evidence. Chapters include: process selection, application and recovery, special considerations for specific materials, protocol sequence and process formulas, including required materials, application method, expected results, safety measures and references. The text is written so that non-crime scene or non-crime laboratory personnel can gain valuable information from it. Book jacket.

Contents:

1 The Forensic Science of Fingerprints 1

Fingerprints 1

Brief History 1

Definitions 2

Types of Fingerprints 3

Why Fingerprints Are Used for Identification 4

How Fingerprints Are Produced 4

Detection and Development 4

Recovery and Preservation 5

Fingerprint Identification 5

APIS (Automated Fingerprint Identification System) 6

2 Developing Fingerprints 7

Chemical and Physical Processes 8

Skin Structure 8

Chemical Composition of Perspiration 8

Chemical Processing versus Physical Processing 10

Preprocessing Measures 10

Chemical Processing 13

Chemical Process Types 13

Reagents 13

Dye Stain 13

Detection and Development 13

Reagent Application 14

Reagent Development 17

Chemical Process Types 17

Personal Protective Equipment (PPE) 17

Mixing Supplies 17

Physical Processing 18

Development with Powders 18

Nonporous Process Protocol/Sequence 26

Cyanoacrylate Processing 26

Principle 26

Definitions 26

Contaminants 27

CA Process 27

Chemical Accelerants 28

Cyan O Wand/Fume-A-Wand™ 28

Dye Stains 29

Dye Stain Application 29

Forensic Light Source/Alternate Light Source (FLS/ALS) 30

Blood Print Processing 31

Blood Reagents 31

Protein Developers 31

Heme Developer 32

Amino Acid Developer 32

Selection of Blood Reagent 32

Miscellaneous 33

3 Special Considerations 35

Thermal Paper 35

Fingerprints on Human Skin 37

Tips on Processing Latex or Nitrile Gloves 37

Objects from Fires 38

Techniques for Soot Removal 38

Soot Removal from Blood Prints 38

Recovery of Fingerprints from Kleenex and Tissue Paper (or Similar Paper Materials Subject to Damage when Wet Processed) 38

Recovery of Latent Prints from Rough or Textured Surfaces 38

Recovery of Fingerprints from Desiccated Remains 39

Recovery of Fingerprints from Wet or Submerged Evidence 39

Touch DNA 40

Recovery of Fingerprints from Firearms 40

Study: Success of Latent Print Development Processes on Firearms, Cartridges, and Casings 41

Additional Processes and Techniques 41

Cy-Vac 41

Vacuum Metal Deposition 41

Hyperspectral Imaging 42

4 Process Sequence Protocols 43

Fundamentals 43

5 The Processes 49

Document #17 50

Standard for the Validation and Performance Review of Friction Ridge impression Development and Examination Techniques (Latent/Tenprint) 50

Acid Yellow 7 51

Amido Black 10B (Methanol Base) 54

Amido Black 10B (Water-Based Formula) 56

Ardrox 58

Ashley's Reagent 60

Basic Red 28 62

Basic Yellow 40 64

Blood Fixers 66

Coomassie Brilliant Blue R250 68

Crowle's Double Stain 70

Crystal Violet 72

Cyanoacrylate Fuming (CA) 75

DAB (Diaminobenzidine) 79

DFO (1,8-Diazafluoren-9-one) 82

Dye Stains 85

Fluorescein 86

Fluorescent Dye Pink 88

Forensic Light Sources 90

Heat/Flame Particulates 92

IND (1,2 indanedione) 94

Modifications to the 1,2 Indanedione Process 96

Iodine Fuming 97

LCV (Leucocrystal Violet) 101

Lifting Materials 104

Liquid Gun Blue 109

Luminol 111

MBD 113

M-Star 116

Ninhydrin (NIN) 118

Physical Developer 122

Potassium Thiocyanate 126

Powders and Particulates 128

RAM 132

Rhodamine 6G Aqueous Formula 135

Rhodamine 6G Methanol Formula 137

Ruthenium Tetroxide-RTX 139

Safranin-O 142

Silicone Rubber Casting 144

Silver Nitrate 147

Small Particle Reagent 150

Sticky-Side Powder 153

Sudan Black 155

Tape-Glo™ 157

Thermal Paper Destaining Solution 159

TMB (Tetramethylbenzidine) 161

Wetwop™ 164

Zinc Chloride 166.

Notes:

Includes bibliographical references and index.

ISBN:

9780128035078

0128035072

OCLC:

926742864