Atlas of Human Hair: Microscopic Characteristics

by Ogle, Jr.; Robert R.

• ISBN13: 9780849381348
• ISBN10: 0849381347
• Edition: 1st
• Format: Nonspecific Binding
• Copyright: 1998-12-03
• Publisher: CRC Press

Summary

It fills a void in the resources available to researchers and practitioners in forensic hair examination by providing photographic archetypes for the microscopic characteristics of human hair and the variates of the characteristics seen in forensic examinations, including curl; color; pigment distribution and density; cortical fusi; and ovoid bodies. These illustrations provide a uniform basis for describing the characteristics and their variations for forensic professionals in differing geographical areas. The documentation of hair characteristics using the scoring system outlined in this atlas allows researchers to develop data regarding the frequency of characteristics within the hairs of one or more individuals and the assessment of whether certain hair characteristics are co-dependent.

Table of Contents

Preface	iii	(2)
Acknowledgments	v	(2)
The Authors	vii
1 Introduction to the Atlas of Human Hair Microscopic Characteristics	1	(10)
1.1 Scope and Function of the Atlas	1	(1)
1.2 Terminology	2	(2)
1.3 Individualization of Physical Evidence	4	(1)
1.4 Numerical Scoring of Hairs	5	(2)
1.5 Materials and Methods	7	(4)
2 Human Hair Macroscopic Characteristics	11	(4)
2.1 Hair Form	11	(1)
2.2 Degree of Hair Curl	12	(1)
2.3 Shaft Length	13	(2)
3 Human Hair Microscopic Characteristics	15	(18)
3.1 Color	15	(4)
3.2 Pigment Density	19	(1)
3.3 Pigment Granule Size	20	(1)
3.4 Pigment Distribution	20	(1)
3.5 Pigment Aggregate Shape	21	(1)
3.6 Pigment Aggregate Size	21	(1)
3.7 Medulla Continuity	22	(1)
3.8 Medulla Opacity	23	(1)
3.9 Cuticle Thickness	23	(1)
3.10 Inner Cuticle Margin	23	(1)
3.11 Outer Cuticle Scale Profile	24	(1)
3.12 Cuticle Surface	24	(1)
3.13 Pigment In Cuticle	25	(1)
3.14 Cortical Texture	25	(1)
3.15 Cortical Fusi	25	(1)
3.16 Ovoid Bodies	26	(1)
3.17 Root Growth Stage	27	(1)
3.18 Distal Tip Characteristics	27	(1)
3.19 Maximum Shaft Diameter	28	(1)
3.20 Shaft Aberration	28	(1)
3.21 Hair Treatments	29	(1)
3.22 Hair Diseases and Disorders	30	(1)
3.23 Miscellaneous Characteristics	30	(1)
3.24 Insect, Arachnid, and Fungal Presence and Damage	31	(2)
4 Human Hair Cross-Section Characteristic Variates	33	(4)
4.1 Shaft Cross-Section Shape	33	(1)
4.2 Cross-Section Cuticle Thickness	34	(1)
4.3 Cross-Section Pigment Density	34	(1)
4.4 Cross-Section Pigment Granule Size	35	(1)
4.5 Cross-Section Pigment Distribution	35	(1)
4.6 Cross-Section Cortical Texture	35	(2)
5 Human Hair Microscopic Characteristics: Photographs and Drawings of Variate Archetypes and Examples	37	(12)
5.1 Color	37	(3)
5.2 Pigment Density	40	(1)
5.3 Pigment Granule Size	40	(1)
5.4 Pigment Distribution	40	(1)
5.5 Pigment Aggregate Shape	41	(1)
5.6 Pigment Aggregate Size	41	(1)
5.7 Medulla Continuity	41	(1)
5.8 Medulla Opacity	42	(1)
5.9 Cuticle Thickness	42	(1)
5.10 Inner Cuticle Margin	42	(1)
5.11 Outer Cuticle Scale Profile	43	(1)
5.12 Cuticle Surface	43	(1)
5.13 Pigment in Cuticle	43	(1)
5.14 Cortical Texture	43	(1)
5.15 Cortical Fusi	43	(1)
5.16 Ovoid Bodies	44	(1)
5.17 Root Growth Stage	44	(1)
5.18 Distal Tip Characteristics	44	(1)
5.19 Shaft Aberration	45	(1)
5.20 Hair Treatments	45	(1)
5.21 Hair Diseases and Disorders	45	(2)
5.22 Miscellaneous Characteristics	47	(1)
5.23 Insect, Arachnid, and Fungal Presence and Damage	48	(1)
5.24 Cross-Sectional Shape	48	(1)
5.25 Cross-Sectional Pigment Distribution	48	(1)
6 Human Hair Types	49	(6)
6.1 The Human Hair Type	49	(1)
6.2 Regional Human Hair Characteristic Variates	50	(2)
6.3 Regional Public Hair Characteristics	52	(3)
References	55	(2)
Glossary	57	(8)
Bibliography	65	(16)
Index	81