PPT-The Hairs and The Bares

By Sierra Magnotta Anna Copp and Caitlin Chaffee In a land far away Where the grass was green and dewy Was a small secluded town By the name of McPhooey In the town of McPhooey. aided . Edge-based. Smoothed Finite . E. lement Method. with Tetrahedral Elements. for Large Deformation Analysis. of Nearly Incompressible Materials. Yuki ONISHI. Tokyo Institute of Technology (Japan). Trace Evidence: Hair. Forensic Science. Unit 5.1: Hair. Table of Contents. Structure. Medulla Variations. Pigment Analysis. Roots. Racial Origin. Body Hair. Human vs. Animal Hair. Animal Hair Identification. Can only compare head hair to head hair. or . pubic hair to another pubic hair. Control hairs from suspect:. 50 full length head hairs. minimum of 24 pubic hairs. HAIR . is useful as forensic evidence because its protein polymers are…. Skin Pigment. The color of your skin is due to an interaction between:. (1) epidermal pigmentation. (2) dermal circulation. Epidermal Pigmentation. Two pigments present in the epidermis:. (1) Carotene – orange-yellow pigment found in the stratum . b. Distinguish and categorize physical and trace evidence (e.g. … hair). SFS2. Students will use various scientific techniques to analyze physical and trace evidence.. . b. Analyze the morphology and types of hair.. Rebecca Miller, MPH, BSN, CSPI, CHES. Northern New England Poison Center. miller@mmc.org. www.nnepc.org. Brown-tail moth history. Accidently introduced into Somerville, Massachusetts from Europe in 1897. . . BY:. MOHAMMED ALSAIDAN. APPROACH. Approach . History. Duration. Pattern. Thinning. . vs. shedding (hair root? Breaking?). FH. Hair care products . Systemic disease, e.g. thyroid . Heavy . mestruation. Photos: IntroductionHuman 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 crimeFrom hair one can determineIf the Areata. Telogen. effluvium. Hair. is simple in structure, but has important functions in social functioning. .. Hair follicle . is  . a solid cylinder of cells, grows obliquely down into the dermis.. found. pieces of evidence at the scene of a violent crime. Unfortunately, hair is not the best type of physical evidence for establishing . identity. . It is not possible to show with any certainty that two hairs came from the same person or animal. However, hair can be used to . Eisenhower High School. Animal Versus Human Hairs. . Human hairs are generally consistent in color and pigmentation throughout the length of the hair shaft, whereas animal hairs may exhibit radical color changes in a short distance, called banding. . Chapter 10. Trace Evidence. A category of physical evidence which includes any small pieces of material, man-made or naturally occurring. Most common examples:. Hair. Fiber. Forensic Use of Hair. Although it is not yet possible to individualize a human hair to any single head or body through its morphology, it still has great value as physical evidence.. . Mr. saimoun ken manhai. Dermis is made of fibrous connective tissue that contains arterioles for supplying nutrients ( oxygen , glucose, water and ions)to its structures and to the epidermis ..