Atlas of Human Hair: Microscopic

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.

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

What is included with this book?

The New copy of this book will include any supplemental materials advertised. Please check the title of the book to determine if it should include any access cards, study guides, lab manuals, CDs, etc.

The Used, Rental and eBook copies of this book are not guaranteed to include any supplemental materials. Typically, only the book itself is included. This is true even if the title states it includes any access cards, study guides, lab manuals, CDs, etc.

FREE SHIPPING

Amazon no longer offers textbook rentals. We do!

Atlas of Human Hair: Microscopic Characteristics

Summary

Table of Contents

Supplemental Materials