1st Edition

Atlas of Human Hair Microscopic Characteristics

    120 Pages
    by CRC Press

    120 Pages
    by CRC Press

    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.

    Introduction
    Scope and Function of the Atlas
    Terminology
    Individualization of Physical Evidence
    Numerical Scoring of Hairs
    Materials and Methods
    Human Hair Macroscopic Characteristics
    Hair Form
    Degree of Hair Curl
    Shaft Length
    Human Hair Microscopic Characteristics
    Color
    Pigment Density
    Pigment Granule Size
    Pigment Distribution
    Pigment Aggregate Shape
    Pigment Aggregate Size
    Medulla Continuity
    Medulla Opacity
    Cuticle Thickness
    Inner Cuticle Margin
    Outer Cuticle Scale Profile
    Cuticle Surface
    Pigment in Cuticle
    Cortical Texture
    Cortical Fusi
    Ovoid Bodies
    Root Growth Stage
    Distal Tip Characteristics
    Maximum Shaft Diameter
    Shaft Aberration
    Hair Treatments
    Hair Diseases and Disorders
    Miscellaneous Characteristics
    Insect, Arachnid, and Fungal Presence and Damage
    Cross-Section Characteristic Variates
    Shaft Cross-Section Shape
    Cross-Section Cuticle Thickness
    Cross-Section Pigment Density
    Cross-Section Pigment Granule Size
    Cross-Section Pigment Distribution
    Cross-Section Cortical Texture
    Human Hair Microscopic Characteristics: Photographs and Drawings of Variate Archetypes and Examples
    Color
    Pigment Density
    Pigment Granule Size
    Pigment Distribution
    Pigment Aggregate Shape
    Pigment Aggregate Size
    Medulla Continuity
    Medulla Opacity
    Cuticle Thickness
    Inner Cuticle Margin
    Outer Cuticle Scale Profile
    Cuticle Surface
    Pigment in Cuticle
    Cortical Texture
    Cortical Fusi
    Ovoid Bodies
    Root Growth Stage
    Distal Tip Characteristics
    Shaft Aberration
    Hair Treatments
    Hair Diseases and Disorders
    Miscellaneous Characteristics
    Insect/Arachnid/Fungal Presence and Damage
    Cross-Section Shape
    Cross-Section Pigment Distribution
    Human Hair Types
    The Human Hair Type
    Regional Human Hair Characteristic Variates
    References
    Appendix I: Glossary of Hair Terminology
    Appendix II: Bibliography of Forensic Hair Examination

    Biography

    Robert R. Ogle, Jr. is a forensic scientist retired from active consulting. He remains active in research and is an author and publisher in the field of forensic science. Michelle J. Fox is a forensic scientist at Forensic Analytical in Hayward, CA. She has presented expert testimony in the areas of firearms evidence, gunshot residue analysis, and forensic hair examination.

    "The Atlas fills a long-overdue need to put information in front of hair analyst."
    --John D. Shane, McCrone Research Institute, The Microscope