Trace Evidence: Hair. Forensic Science
|
|
- Benedict Haynes
- 5 years ago
- Views:
Transcription
1 Trace Evidence: Hair Forensic Science
2 Hair Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Face Chest Limbs (arms and legs) Pubic region 2
3 Structure (continued) Major constituents Keratin is a protein that makes up most of the hair shaft. Melanin is a pigment that gives hair its color. Redheads have pheomelanin instead of melanin. 3
4 Structure (continued) Cortex the main body (wooden portion) Medulla the central cell of the cortex that is not always present in every hair (lead) Cuticle a layer of scales covering the hair shaft (yellow paint) Pencil vs. Hair 4
5 Sample Photomicrographs Continuous Clear Medulla Continuous Opaque Medulla Wafer Medulla 6
6 Sample Photomicrographs Discontinuous Medulla Bubbly or Cellular Medulla Coarse Cellular Appearance 7
7 Characteristics Pigment Colors light, medium, dark; reddish-brown, brown, black, etc. Sizes fine, moderate, large Density light, moderate, heavy Distribution random, peripheral, even, central, one-sided Dyed Human Hair 9
8 Characteristics (continued) Various Pigment Distributions One-Sided Peripheral in Human Hair Random in Animal Hair Central in Red Human Hair 10
9 Characteristics (continued) Ovoid bodies spherical to oval solid structures found mostly in cattle and dog hairs, but present in some human hairs Ovoid Bodies in human hair Ovoid Bodies in dog hair 11
10 Characteristics (continued) Cortical fusi elongated, spindle-shaped air spaces in the cortex Special characteristics, cuticle damage, artificial treatment Cortical Fusi 12
11 Roots 3 stages of growth determined by the root (proximal end) Anagen root an active growth stage, often found with a ribbon-like tip and a follicular tag (a soft tissue from the follicle) Catagen root the intermediate stage of growth Telogen root a resting stage, has a bulblike shape. Often found with very little pigment and an abundance of cortical fusi. 13
12 Roots (continued) Anagen Catagen Telogen 14
13 Roots (continued) Hairs that are forcibly removed often end up with a follicular tag (a soft tissue from the follicle) attached to the roots. The follicular material may be suitable for nuclear DNA analysis. telogen root without follicular tag telogen root with follicular tag 15
14 Roots (continued) Postmortem Root Band (aka "Dead man's root ) a dark band that may appear near the root of the hair originating from a decomposing body 16
15 Distal Ends Scissor-cut Abraded Razor-cut Rounded Burnt hair Broken 17
16 Human & Animal Hair 3 Main differences Pigment Medulla Scale Structure Human Hair remains constant in its color and pigmentation throughout the length of the shaft thin, taking up no more than 1/3 of the hair shaft diameter; amorphous has overlapping imbricate (or flattened) scales with narrow margins Animal Hair often exhibits rather rapid and radical color changes very wide; its structure is very regular and welldefined (with certain patterns) some have coronal (crown-shaped) scales or spinous (petal-shaped) scales 18
17 Human & Animal Hair (continued) Human Animal Medulla 19
18 Human & Animal Hair (continued) Rabbit hair Uniserial Ladder Medulla Multiserial Ladder Medulla 20
19 Scales Imbricate Scales Human Imbricate Scales Coronal Scales Diagram Bat Hair 21
20 More Examples Spinous Scales Diagram Mink hair Cellular Medulla In opossum hair Isodiametric Scales In Deer hair 22
21 Racial Origin Caucasian moderate shaft diameter with very little variation light to moderate pigment density with fairly even distribution oval-shaped cross-section 23
22 Racial Origin (continued) Caucasian Head Hair cross-section Caucasian Head hairs 24
23 Racial Origin (continued) Mongoloid coarse shaft diameter streaky pigments with heavy density thick cuticle round cross-section 25
24 Racial Origin (continued) Mongoloid Head Hairs 26
25 Racial Origin (continued) Negroid fine to moderate shaft diameter considerable variation throughout the hair shaft with prominent twists and curls heavy pigment density with aggregate pigment clumpings flat cross-section 27
26 Racial Origin (continued) Negroid head hairs 28
27 Variations (continued) One person's head hair One person of multiple race 30
28 Diseases Certain diseases or deficiencies may result in changes in the appearance of hair. Trichorrhexis nodosa - conspicuous nodes due to immunodeficiency or small bowel disorder Pili annulati ringed or banded hairs Parasites - egg sack of head lice 40
29 Hair Comparisons Comparison microscope 2 compound microscopes connected together with an optical bridge Enables side-by-side comparisons Typical magnification from 100X to 250X 41
30 Hair Comparisons Information NOT provided by a hair examination Age Gender Unless nuclear DNA analysis is performed on its follicular tag Information provided by a hair examination Is it human or animal hair? What is the possible race of the donor? What area of the body did it come from? Could it have originated from the donor of the known standards? Hair can also be used to distinguish between identical twins (who cannot be distinguished based on their DNA). because of the environmental effects on hair such as weather exposure, diet, artificial treatment, etc. 42
31 Hair Comparisons (continued) 3 basic conclusions that can be reached in hair comparisons: 1) Similar microscopical characteristics the questioned hairs could have originated from the source of the known hair standards 2) Dissimilar microscopical characteristics the questioned hairs did not originate from the source represented by the known hair standards 3) Both similar and slightly different microscopical characteristics inconclusive 43
32 Significance of Hair Evidence The frequency of contact between a victim and a suspect, as well as the crime scene, is a big factor in interpreting the significance of hair evidence. Examples The pubic hair of a recent ex-boyfriend found at the scene of a sexual assault A husband who is suspected of murdering his wife at home A missing child's hair in the backseat of a former nanny's car A missing child's hair in the backseat of a cleaning lady's car A stepfather's head hair found on a little girl's underwear A stepfather's pubic hair found in the crotch area of a little girl's underwear 44
Trace Evidence: Hair. Forensic Science
Trace Evidence: Hair Forensic Science Hair Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Face Chest Limbs (arms and legs) Pubic region
More informationTrace Evidence: Hair. Forensic Science
Trace Evidence: Hair Forensic Science Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Eyebrows and Eyelashes Beard and Mustache Underarm
More informationTrace Evidence: Hair. Forensic Science
Trace Evidence: Hair Forensic Science Human & Animal Hair 3 Main differences Pigment Medulla Scale Structure Human Hair remains constant in its color and pigmentation throughout the length of the shaft
More informationTrace Evidence: Hair. Forensic Science
Trace Evidence: Hair Forensic Science Copyright and Terms of Service Copyright Texas Education Agency, 2011. These materials are copyrighted and trademarked as the property of the Texas Education Agency
More informationTrace Evidence: Hair. Forensic Science
Trace Evidence: Hair Forensic Science Copyright and Terms of Service Copyright Texas Education Agency, 2011. These materials are copyrighted and trademarked as the property of the Texas Education Agency
More informationMedical Forensics Notes
Medical Forensics Notes The Biology of Hair Hair is composed of the protein keratin, which is also the primary component of finger and toe nails. The Biology of Hair Hair is produced from a structure called
More informationHair can be defined as a slender, thread like outgrowth from a follicle in the skin of mammals. Composed mainly of keratin, it has three
1 2 3 Hair can be defined as a slender, thread like outgrowth from a follicle in the skin of mammals. Composed mainly of keratin, it has three morphological regions the cuticle, medulla, and cortex. 4
More informationMicroscopic Examination of Trace Evidence
Microscopic Examination of Trace Evidence When a forensic scientist receives hair and/or fiber evidence from a crime scene they must determine the following things: Is it a hair or is it a fiber? If a
More informationCopyright 2013 Crosscutting Concepts, LLC. All Rights Reserved.
Trace Evidence Trace evidence results from the transfer of material from one place to another. Examples include: fibers glass fragments paint hair Trace Evidence Locard s principle: Every contact leaves
More informationObjectives. You will understand that: Hair
Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external
More informationObjectives. You will understand that: Hair
Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external
More informationMorphology and Structure of Hair
Hairs & Fibers Morphology and Structure of Hair Morphology of Hair An appendage of the skin that grows out of an organ known as the hair follicle. Extends from its root or bulb embedded in the follicle,
More informationForensic Value of Hair
Forensic Value of Hair Hair is class evidence morphorlogy (how it looks), index (how thick the medula is), color Mitochondrial DNA from shaft. All mitochondria comes from egg only, not sperm. So ONLY maternal
More informationHair as Evidence Hair is helpful as evidence for 4 reasons 1) Wide range of classifications 2) Persistent (gets stuck in clothing) 3) Resists
Hair Human hair is one of the most frequently found pieces of evidence at the scene of a violent crime. It can provide a link between the criminal and the crime Hair as Evidence Hair is helpful as evidence
More informationHair. Oleg_Mit/Shutterstock.com
Hair Oleg_Mit/Shutterstock.com 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the
More informationObjectives. You will understand that: Hair
Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external
More informationFORENSIC SCIENCE. Trace Evidence
FORENSIC SCIENCE Trace Evidence 1 Introduction Trace Evidence--any small pieces of material, man-made or naturally occurring. Trace evidence (in the absence of DNA) is considered class evidence. As early
More information4L1 *fr4t17? JKi3ic,4. The Function and. Structure of Hair
excited at the moment something s happening like people do. t sits there and wafts to be --Herbert Leon MacDoneli, The Evidence NeverLies inner medulla, the cortex, and the outer cuticle. A hair has three
More informationHair. Chapter 5: For three days after death, hair and fingernails continue to grow but phone calls taper off.
Chapter 5: Hair For three days after death, hair and fingernails continue to grow but phone calls taper off. Johnny Carson Comedian and television host http://kids.niehs.nih.gov/illusion/illus ions.htm
More informationUnit 3 Hair as Evidence
Unit 3 Hair as Evidence A. Hair as evidence a. Human hair is one of the most frequently pieces of evidence at the scene of a violent crime. Unfortunately, hair is not the best type of physical evidence
More informationHair Microscopy The comparison microscope is integral to trace evidence examinations. Two matching hairs identified with the comparison microscope
Hairs, which are composed primarily of the protein keratin, can be defined as slender outgrowths of the skin of mammals. Each species of animal possesses hair with characteristic length, color, shape,
More informationfound identity rule out corroborate
Hair as Evidence Human hair is one of the most frequently found pieces of evidence at the scene of a violent crime. Unfortunately, hair is not the best type of physical evidence for establishing identity.
More informationStudy Guide-Forensic Science Chapter 5- Hair Name:
1. Is hair class or individual evidence? Class 2. Does hair only absorb substances from inside the body? _No, Inside and out_ 3. From hair, one can determine the following: _Human or animal Race Origin
More information1 of 8 11/3/14 2:01 PM
Home About Us Laboratory Services Forensic Science Communications Back Issues July 2000 Hairs, Fibers, Crime, and Evidence, Part 1, by Deedrick... Part 1: Hair Evidence July 2000 - Volume 2 - Number 3
More informationForensics 1: Unit 3: Trace Evidence: Hair
Forensics 1: Unit 3: Trace Evidence: Hair -Encountered as physical evidence in a wide variety of crimes. -Not yet possible to individualize a human hair to a single head or body. -When properly collected
More informationTRAINING LAB HAIR AS EVIDENCE: PART 1 HUMAN HAIR NAME
TRAINING LAB HAIR AS EVIDENCE: PART 1 HUMAN HAIR NAME Background: You loose about 50 to 100 hairs a day from the approximately 100,000 total hairs present on your head. Don t worry, however, because there
More informationBiology of Hair. Hair is composed of the protein keratin, which is also the primary component of finger and toe nails.
Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein
More information-hairs grows out of a follicle (has cells with DNA for analysis) - hair extends from here (in the follicle) has cells with DNA
Name _ period Unit 4: Hair and Fibers Anatomy and Use in Forensic Science Objectives You will understand that: Hair is. Hair can be used to back up. Hair absorbs and adsorbs substances both from within
More informationForensic Science. Presentation developed by T. Trimpe
Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein
More informationChapter 3 The Study of Hair By the end of this chapter you will be able to:
Chapter 3 The Study of Hair By the end of this chapter you will be able to: identify the various parts of a hair describe variations in the structure of the medulla, cortex, and cuticle distinguish between
More informationTRAINING LAB HAIR AS EVIDENCE: PART 2 ANIMAL HAIR NAME
TRAINING LAB HAIR AS EVIDENCE: PART 2 ANIMAL HAIR NAME Background: Animal hair can be just as important in helping to solve a crime as human hair. Example: a criminal breaks in to a house and steals some
More informationPLEASE DO NOW #4 PLEASE DO NOW #5
PLEASE DO NOW #4 How many hairs does the average person have on his/her head? a) All b) Red hair c) Blond hair d) Brown hair ~100,000 ~90,000 ~140,000 Between 90,000 to 140,000 PLEASE DO NOW #5 Why do
More informationTrace evidence is a term for small, often microscopic material. This evidence can be a significant part of an investigation. It includes an endless
Trace Evidence Trace evidence is a term for small, often microscopic material. This evidence can be a significant part of an investigation. It includes an endless variety of materials but the trace evidence
More informationForensic Science
http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Forensic Science 1 Central Focus Students will understand how forensic scientists use observational, physical, chemical, and biological
More informationHAIRS. Morphology of Hair dermis 5/5/2017. Chapter 8 HAIR, FIBERS, AND PAINT. cortex medulla Sebaceous gland
Chapter 8 HAIR, FIBERS, AND PAINT HAIRS 1 2 Introduction Hair is encountered as physical evidence in a wide variety of crimes. Although it is not yet possible to individualize a human hair to any single
More informationLocard s Exchange Principle
Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Tomm 2006 http://sciencespot.net/ Locard s Exchange Principle "Every Contact Leaves
More informationForensic Science. Presentation developed by T. Trimpe 2006
Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein
More informationBiology of Hair. Hair is composed of the protein, which is also the primary component of finger and toe.
Prof. J. Dodd Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Biology of Hair Hair is composed of the protein, which is also the primary component of finger and
More informationLocard s Exchange Principle
Glue the paper on page 19 under the notes FAF Right http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Tomm 2006 http://sciencespot.net/ Locard s Exchange
More informationHair. Name Period. Fill in the blanks and answer the following questions based on the powerpoint and your textbook.
Hair Name Period Hair is important as trace evidence in criminal investigations. Chapter 3 in your textbook explains why we study hair, and how we study it. Your job is to become an expert on both! Fill
More informationTechnical Procedure for Hair Analysis. 1.0 Purpose This technical procedure shall be followed for the examination of hair evidence.
Technical Procedure for Hair Analysis 1.0 Purpose This technical procedure shall be followed for the examination of hair evidence. 2.0 Scope This procedure applies to all hair cases in the Trace Evidence
More informationACTIVITY 3-1 TRACE EVIDENCE: HAIR
ACTIVITY 3-1 TRACE EVIDENCE: HAIR Objectives: By the end of this activity, you will be able to: 1. Describe the external structure of hair. 2. Distinguish between different hair samples based on color,
More informationTRICHOLOGY. Copyright 2013 SAP
TRICHOLOGY Copyright 2013 SAP TRICHOLOGY The scientific study of hair, its diseases, and care Hair is part of integument. Healthy hair requires a healthy diet. Proper nutrients are required for healthy
More informationThe MiniOne TM Reagent Kit: Crime Scene Invesitigation
The MiniOne TM Reagent Kit: Crime Scene Invesitigation Cat#: M3005 2 Crime Scene Investigation Reagent Kit Components Other Required Materials Laboratory Safety Table of Contents Page 3 3 3 Experiment
More information#7. Animal hair can be distinguished from human hair because animal hair
High School Forensics Test Division C Mentor 2016 Team#_ Score: _ Names of Participants:_ Multiple Choice and True/False: Hair Analysis True/False A is true; B is false. #1. The shaft of the hair is considered
More informationNEUTRON ACTIVATION ANALYSIS OF HAIR
Chapter Overview Hair has been used in forensic analysis since the late 19th century. Hair regulates body temperature, reduces friction, protects the body from light, and is also a sense organ. It is made
More informationVariation between laboratory procedures for the microscopic examination of human hair
Boston University OpenBU Theses & Dissertations http://open.bu.edu Boston University Theses & Dissertations 2013 Variation between laboratory procedures for the microscopic examination of human hair Murphy,
More informationMicroscopic Evidence HAIR EVIDENCE FIBER ANALYSIS PATHOLOGY INTRO
Microscopic Evidence HAIR EVIDENCE FIBER ANALYSIS PATHOLOGY INTRO Microscopic Hair Analysis The first step in microscopic hair evaluation is to determine whether it is animal or human. Hair (and nails)
More informationThe Study of Hair CHAPTER NEUTRON ACTIVATION ANALYSIS OF HAIR CHAPTER
CHAPTER 1 2 CHAPTER The Study of Hair 4 5 6 7 8 9 10 11 12 1 14 15 16 17 NEUTRON ACTIVATION ANALYSIS OF HAIR In 1958, the body of 16-year-old Gaetane Bouchard was discovered in a gravel pit near her home
More informationSAMPLE COPY SAMPLE COPY SAMPLE COPY
The Integumentary and Skeletal Systems EXPERIMENT 3.1: A CLOSER LOOK AT THE SKIN Supplies: Microscope Prepared slide: human skin (not the one with follicles or hairs) Purpose: To examine the dermis and
More informationCrime Busters. Safety. What To Bring. What To Bring. Prep the Team. The Story Arc
Safety Crime Busters How to Be Successful at This Event Presented By Scott A Holdren Regional Director State Event Supervisor National Event Supervisor Students must wear Closed-toed shoes ANSI Z87 indirect
More informationCoat Colour. Lakeland Terrier
A Discussion of Coat Colour Genetics in the Lakeland Terrier Chapter 2 Dog Hair By Ron Punter Page Representation of section of an active hair follicle Topcoat hair The surface Epidermis is confluent with
More informationHAIR SCIENCE AND BIOLOGY
HAIR SCIENCE AND BIOLOGY Your hair is composed of keratin, a strong fibrous protein, and is built from cells similar to those of your skin. The average number of hairs on the human scalp is 120,000, although
More information1198 Ó 2009 American Academy of Forensic Sciences
J Forensic Sci, September 2009, Vol. 54, No. 5 doi: 10.1111/j.1556-4029.2009.01139.x Available online at: www.blackwell-synergy.com Letter to the Editor Scientific Working Group on Materials Analysis Position
More informationChapter 11 Properties of the Hair and Scalp
Chapter 11 Properties of the Hair and Scalp MULTIPLE CHOICE 1. What term refers to the scientific study of hair and its diseases and care? a. Trichology b. Cosmetology c. Selenology d. Cartology ANS: A
More informationANALYSIS OF FINGERPRINTS, LIPSTICK 2 ND HAIR
ANALYSIS OF FINGERPRINTS, LIPSTICK 2 ND HAIR LAB FORENSICS.3 From Sourcebook, National Science Foundation, 1997 INTRODUCTION PART A. OBTAINING A FINGERPRINT Black ink stamp pad Tissue paper 4 x 4 cm Card
More informationFORENSIC TRICHOLOGY AND ITS IMPORTANCE IN CRIME CASES.
FORENSIC TRICHOLOGY AND ITS IMPORTANCE IN CRIME CASES. V. Vinayak 1 *,Chitralekha 2, S.Kaur 3,. A. Kadyan 4 and A.Rai 5 1 Senior Scientific Officer(Biology) 2 Scientific Assistant(Biology) 3 Senior Scientific
More informationProgram/Ciass. _...:.::Jr_;C=o=s:.:..:m:..:..:e=t:..::o.:.::lo~gyiU.- J)B~"--3.:... Period.
Academic/Career & Technical Related/Demonstration Lesson Plan lnstructor -=N=a=n..::..::c=..vRe=e=d::...ov'-----------Date Program/Ciass. _...:.::Jr_;C=o=s:.:..:m:..:..:e=t:..::o.:.::logyiU.- J)B"--3.:...
More informationChapter 10 Properties and Disorders of the Hair and Scalp
Chapter 10 Properties and Disorders of the Hair and Scalp MULTIPLE CHOICE 1. Trichology is the scientific study of, its disorders, and its care. a. the muscular system c. hair b. the skeleton d. skin Trichology
More informationObjective: You will be able to describe the structure of hair.
Objective: Yu will be able t describe the structure f hair. 1 Frensic Science: Fundamentals & Investigatins, Chapter 3 Apprximately 100 head hairs are shed by an individual each day. These hairs are shed
More informationT R E A T Y O U R H A I R W I T H L O V E HAIR LOVE. Defineing The New you W W W. G E N E S I S H A I R C A R E. O R G
T R E A T Y O U R H A I R W I T H L O V E HAIR LOVE Defineing The New you W W W. G E N E S I S H A I R C A R E. O R G Greeting, I appreciate you reading and discovering the Love Your Hair Report. My name
More informationAuthors Jeanette Jolley and John Powrie
Authors Jeanette Jolley and John Powrie Credits Associate Editor Josh Roby Assistant Editor Leslie Huber, M.A. Editorial Director Dona Herweck Rice Editor-in-Chief Sharon Coan, M.S.Ed. Editorial Manager
More informationIntegument. Sweat glands. Oil glands. Hair Nails. Sudoriferous glands. Sebaceous glands
The Hypodermis Aka. Subcutaneous or superficial fascia Composed of Adipose Not really a part of the integument, but it is important in stabilizing the position of the skin in relation to underlying tissue
More informationHair loss, alopecia areata, cicatricial alopecia. By Kai Chi Chan P-year Medical Student SGUL-UNIC at Sheba Hospital
Hair loss, alopecia areata, cicatricial alopecia By Kai Chi Chan P-year Medical Student SGUL-UNIC at Sheba Hospital No need to pull your hair out about it! Summary: Hair Structure Hair growth cycle Male
More informationSession 2. Services, products and pricing (Part 1) Hair and growth characteristics. Trainer requirements to teach this session.
Services, products and pricing (Part 1) Hair and growth characteristics Trainer requirements to teach this session For this session you will need the following: Activity.2.1 Activity.2.1 (answer guide)
More informationHair Analysis. By the end of this unit you will be able to:
1 All rights Reserved Cengage/NGL/Suth-Western 2016 Hair Analysis By the end f this unit yu will be able t: 1 Identify the varius parts f a hair. 2 Describe variatins in the structure f the medulla, crtex,
More informationMicroanatomical observations of hair in domestic animals: A comparative study
2018; 6(5): 1925-1929 E-ISSN: 2320-7078 P-ISSN: 2349-6800 JEZS 2018; 6(5): 1925-1929 2018 JEZS Received: 18-07-2018 Accepted: 19-08-2018 S Senthilkumar PG Scholar, Dept. of Veterinary Anatomy, Madras veterinary
More information1
www.trichosciencepro.com 1 TrichoSciencePro Professional hair and scalp diagnostic software PRESENTATION The latest program version of TrichoSciencePro version 1.3SE was released in 2015 and has numerous
More informationl! i.lffjj laboratory Investigation 5)
Name Class--------------- Date l! i.lffjj laboratory Investigation 5) Splitting Hairs Problem Can you identify which hair samples are human? Background There was a break-in at a local animal clinic. People
More informationThe structures of the hair root. The three layers of the hair shaft. The factors that should be considered in a hair analysis.
E-Hair College Welcome to E-HAIR learning system. 1. Read Chapter 7 in Salon Fundamental textbook. 2. Complete Ch. 7 questions in study guide. 3. Read these additional notes. 4. For review go to practice
More informationSession 3. Hair. Trainer requirements to teach this session. Trainer notes. For this session you will need the following:
Hair Trainer requirements to teach this session For this session you will need the following: Handout.3.1 (4 pages) Handout.3.2 (2 pages) Handout.3.3 (2 pages) Slide.3.3 Learner Check for Session 3 Trainer
More informationHair. Chapter. Objectives. After reading this chapter, you will understand that:
Chapter 5 Objectives After reading this chapter, you will understand that: is class evidence. can be used to back up circumstantial evidence. absorbs and adsorbs substances both from within the body and
More informationHair Restoration Gel
Hair Restoration Gel CLINICAL STUDY Cosmetic hair tonics have been peddled for the better part of the last century, mostly in the form of inert tonics and pigmented creams that promised to restore hair
More informationForensic Science: Fundamentals & Investigations, 2e Chapter 3. All rights Reserved Cengage/NGL/South-Western 2016
1 Frensic Science: Fundamentals & Investigatins, 2e Cengage/NGL/Suth-Western 2016 Hair Analysis By the end f this chapter yu will be able t: 3.1 Identify the varius parts f a hair. 3.2 Describe variatins
More informationActivity 27 WHOSE HAIR IS IT?
Activity 27 WHOSE HAIR IS IT? STUDY QUESTION: THE ACTIVITY: CURRICULUM FIT: AGRICULTURE CONCEPTS: What differences are there between human and animal hair? How do forensic science laboratories use this
More informationChapter 21 Haircoloring
Chapter 21 Haircoloring MULTIPLE CHOICE 1. Clients who have their hair colored usually visit the salon every weeks. a. two to four b. three to six c. four to eight d. three to twelve ANS: D PTS: 1 REF:
More information: An organ - two or more tissues functioning
2 INTEGUMENTARY SYSTEM - CHAPTER 5 : An organ - two or more tissues functioning sq. m, 9-11 lbs, 7% of body weight mm thick Two layers & A.Epidermis protective layer w/o B.Dermis tissue fibrous & passes
More informationFibres Retention Time on Different Type of Recipient Garments
Fibres Retention Time on Different Type of Recipient Garments Sri Pawita Albakri Amir Hamzah, Muzaiyana Safie, Pua Hiang, Atiah Ayunni Abdul Ghani, Noor Hazfalinda Hamzah Forensic Science Programme, School
More informationYou can usually divide the hair into three different parts: the cuticle, or the cover cells, which is the outer hard layer of the hair.
Super Wash anatomy Hair consists mostly of a protein called a-keratin. Keratin or horn substance, is a sulfur-containing protein and belongs to a group of fibrous proteins that form the basis of hair and
More informationTemporary Epilation Week 1 T1 2016
Temporary Epilation Week 1 T1 2016 Histology of hair, Hair growth cycle Methods of hair removal Hot wax Hair and the skin Hair: an appendage of skin Slender, threadlike outgrowth of skin and scalp Hormonal
More information1 of 5 11/3/14 2:03 PM
Home About Us Laboratory Services Forensic Science Communications Back Issues July 2000 Hairs, Fibers, Crime, and Evidence, Part 2, by Deedrick... Hairs, Fibers, Crime, and Evidence Part 2: Fiber Evidence
More informationIndex. curly hair 5,10,11,13,15,17,62, 74, 119. See also frizzy hair cuticle 4-6,31,32,37-8,47,95,
Glossary allergy an adverse skin reaction to a chemical(s) or other substance(s). alopecia a scalp disorder leading to baldness. arrector pili the name of the hair muscle. back-combed hair is combed down
More informationHasson & Wong Lateral Slit Technique in Hair Transplantation Natural hair transplant results, minimized scarring
Hasson & Wong Lateral Slit Technique in Hair Transplantation Natural hair transplant results, minimized scarring The evolution of follicular unit hair transplants, which involves transplanting hair in
More informationAccessory Structures of the Skin *
OpenStax-CNX module: m46062 1 Accessory Structures of the Skin * OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons Attribution License 4.0 By the end of this section,
More informationNatural appearance and increased
Orientation of Multi-Hair Follicles in Nonbald Men: Perpendicular Versus Parallel KUNIYOSHI YAGYU, MD, KOKI HAYASHI, MD, AND STEVEN C. CHANG, MD y BACKGROUND There has been much debate about the orientation
More informationBy Dr. LEON AUGUSTUS HAUSMAN
HAIR COLORATION IN ANIMALS 215 HAIR COLORATION IN ANIMALS By Dr. LEON AUGUSTUS HAUSMAN CORNELL UNIVERSITY N some recent papersl the writer has endeavored to point out that an accurate knowledge of the
More informationHow To Measure In Vivo UVA and UVB Blocking Sunscreens and Cosmetics on Human Skin
How To Measure In Vivo UVA and UVB Blocking Sunscreens and Cosmetics on Human Skin Jeffrey L. Taylor, Ph.D. Jillian F. Dlugos HUMAN HEALTH ENVIRONMENTAL HEALTH 2015 PerkinElmer Skin Related Spectral Regions
More informationFig 1A-1a Pre Germ Stage. Fig 1A-1b Germ Stage. Fig 1A-1c Hair Peg Stage
1 HAIR ANATOMY AND HISTOLOGY Ronald Shapiro Md, Paul Rose MD, Michael Morgan MD, Hair Transplantation 4 th Edition, Revised and Expanded, Unger & Shapiro,2004, Chapter 1A: 25-33 EMBRYOLOGY Hair follicles
More informationFIBRES, METAL BUTTONS, WELDING FUME PARTICLES, AND PAINT CHIP AS INCRIMINATING EVIDENCE IN SOLVING TWO HOMICIDES COMMITTED BY THE SAME PERSON
FIBRES, METAL BUTTONS, WELDING FUME PARTICLES, AND PAINT CHIP AS INCRIMINATING EVIDENCE IN SOLVING TWO HOMICIDES COMMITTED BY THE SAME PERSON Raili Sulkava, Lawrence Gunaratnam, Pirkko Rovas, Jari Pukkila
More informationTHE GROWING HAIR ROOTS OF THE HUMAN SCALP AND MORPHOLOGIC CHANGES THEREIN FOLLOWING AMETHOPTERIN THERAPY*
THE GROWING HAIR ROOTS OF THE HUMAN SCALP AND MORPHOLOGIC CHANGES THEREIN FOLLOWING AMETHOPTERIN THERAPY* EUGENE J. VAN SCOTT, M.D., RICHARD P. REINERTSON, M.D. AND ROBERT STEINIIULLER The hair roots of
More informationPlease visit your examination provider s website for the most current bulletin prior to testing. IMPORTANT INSTRUCTIONS
NATIONAL BARBER 1 (NO CHEMICAL SERVICES) THEORY EXAMINATION CANDIDATE INFORMATION BULLETIN Please visit your examination provider s website for the most current bulletin prior to testing. The National
More informationjunction, from their deep location we can tell they are responsible of transmission of deep pressure. 2 P a g e
7 2 1 P a g e Sensory receptors: Sensory receptors are divided into 2 types. I. Sensory receptors which are surrounded by a capsule are called encapsulated sensory receptors, Examples: 1- Meissner s corpuscles,
More informationmidterm124 January 24, 2014
1/24 Mid-term Review You have 10 minutes to walk around and check your answers to the mid-term review and then ask me any questions (the answers will also be posted on my Frontier website) Then get a whiteboard,
More informationEducator Manual NOT FOR DISTRIBUTION
Educator Manual Section 1 - Hair Structure Amino Acids Protein chains Side Bonds Section 2 - Chemical Need to Know s (What NP Isn't) Formaldehyde Glyoxylic Acid Ammonia Section 3 - New Plastic F.A.Q s
More informationRedacted for Privacy
AN ABSTRACT OF THE THESIS OF Misty A. Weitzel for the degree of Masters of Arts in Interdisciplinary Studies in Anthropology, Anthropology, and Geography presented on (June 9, 1998). Title: A New Method
More informationTrichoSciencePro PRESENTATION
1 TrichoSciencePro Professional hair and scalp diagnostic software PRESENTATION The first new program version of TrichoSciencePro version 1.1SE was released in 2012 and has numerous important updates and
More informationInvestigator Guide to Studying Hair
Investigator Guide to Studying Hair Hair is a great subject for anyone to study; there is so much of it around. You can find it on people s heads; coming off from your pets when you stroke them; in your
More informationHuman Hair Histogenesis for the Mitochondrial DNA Forensic Scientist
Charles A. Linch, 1 B.S.; David A. Whiting, 2 M.D.; and Mitchell M. Holland, 3 Ph.D. Human Hair Histogenesis for the Mitochondrial DNA Forensic Scientist REFERENCE: Linch CA, Whiting DA, Holland MM. Human
More informationMARCA Bingo Instructions
Bingo Instructions Host Instructions: Decide when to start and select your goal(s) Designate a judge to announce events Cross off events from the list below when announced Goals: First to get any line
More informationHAIR LOSS. Types of Hair Loss
HAIR LOSS Hair loss is a common condition that affects most people (depending on the severity) at some point in their lives. Humans have between 100,000 and 150,000 strands hairs on their head. The number
More information