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Anth 2220- Human Anthropology @ The University of Utah

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by: Helene Lam

Anth 2220- Human Anthropology @ The University of Utah Anth 2220

Marketplace > University of Utah > anthropology, evolution, sphr > Anth 2220 > Anth 2220 Human Anthropology The University of Utah
Helene Lam
The U
GPA 3.8

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About this Document

These are the notes for the material that was covered in the second week of class where the Weber Metro CSI came and did a presentation on Crime Scene Investigations.
Introduction to Forensic Anthropology and the Forensic Sciences
Derinna Kopp
Class Notes
Human Anthropology, Anthropology, Anthropology 2220, Human, forensics, Crime Scenes, second week, University of Utah, U of U, Humanities, Applied Science, Gen Ed, notes
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"Amazing. Wouldn't have passed this test without these notes. Hoping this notetaker will be around for the final!"
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This 4 page Class Notes was uploaded by Helene Lam on Saturday January 23, 2016. The Class Notes belongs to Anth 2220 at University of Utah taught by Derinna Kopp in Winter 2016. Since its upload, it has received 148 views. For similar materials see Introduction to Forensic Anthropology and the Forensic Sciences in anthropology, evolution, sphr at University of Utah.

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-Velma Runte MD


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Date Created: 01/23/16
Helene Lam January 20, 2016 Human Anthropology Notes – Weber Metro CSI Presentation  Forensic Science: is the application of science to those criminal and civil laws that are enforced by police agencies in a criminal justice system. o The scientific method is in use, must be replicated by other agencies.  Science + Criminal Justice = Forensics  Locard’s Principle: When two or more items come in contact with an object or other person, a cross-transfer or exchange of information will occur. o For a crime scene investigation, this transfer becomes evidence. o Locard strongly believed that every criminal took a piece of evidence with them. The scene of a crime Victim Place Suspect Search o Purpose: To obtain evidence. You must be systematic and thorough. o What is evidence? Any and all objects that can establish that a crime has been committed or can link a crime and its victim or it perpetrator o Can be ANYTHING. Types of Crime Scenes o Death, Burglary, Traffic Accidents, Trespass, Clandestine Labs (drugs), Arson, Weapons, Assault, Graffiti, Etc. Scene Processing o Every scene is handled the same way, just weed out unnecessary things. *mental checklist. Scene Safety Perimeter o Responsibility falls upon the first responder. o Protects the evidence. o Prevents officers and others from aimlessly wondering and trampling evidence. o The officer and others will be responsible for their own movements. 1 Helene Lam January 20, 2016 o Protective measures are decided on a case by case basis. When in doubt, go big. It is easier to make a big section smaller, but not easy to make a small section bigger. Three Perimeter Zones o Cold, Warm and Hot. o Cold is okay for anyone to be there, however ANYONE WHO PASSES THE COLD ZONE will have their information taken down and must appear in court to explain why they where there and why they passed the cold zone. o #1 Destroyer of crime scenes are fire-fighters. #2 are police officers. Secure and Isolate the Crime Scene o 2 perimeters provide for 3 areas of access. o This keeps police out of the actual scene and others at a safe distance. Sketches o Creates a mental picture of the scene for those not present. o Depicts the overall layout of the scene. o Make a simple line drawing of the crime scene on whatever paper you have. o Have an arrow that points to North somewhere on the sketch. Document through Photographs o Pictures are worth a thousand words. o Takes the jury inside the scene. o Helps you remember where you pick stuff up. o Can be very general to very specific. o Shows the relationship of the scene with the surroundings. o 3 types of photos: Far, Medium and Close. Fingerprint Analysis o The two underlying premises of fingerprint identification are uniqueness and persistence (permanence) o No 2 people have the exact same fingerprint. o A person’s fingerprint remains relatively the same throughout their lives. o 3 levels of details for fingerprints:  1 Level- Pattern type  Arch, Loop, Whirl. nd  2 Level- Minutia or Ridge Characteristics  Galton Details, Bifurcations  3 Level- Ridge Characteristics  Pore shape and Ridge flow o In the womb, if a fetus has the ball of their finger in the middle, they will have a left/right loop. If it sits low, they will have an arch and if it is high, they will have a whirl. o Bifurcation: When one line on a fingerprint becomes two. 2 Helene Lam January 20, 2016 Crime Scene Reconstruction o Blood Spatter and Pattern analysis o Wipes, Swipes, Cast off, Arterial Spurting, High Velocity, Angle of Impact, and Blood Drops Shooting Reconstruction o For a head, you need TWO POINTS of impact. ALS (Blue Light) o Alternative light source o Used to locate the following: fingerprints after processing, hair and fibers, bruising, bodily fluids (not blood though) Chemical Processing o Lab techniques  Powder  Superglue Fuming – for non porous items  Basic Yellow  Ninhydrin – For pourous items *turns fingerprint purple by reacting with the amino acids in our skin. Usually on a suicide note.  DFO  Physical Developer o Field Techniques  Powder  Luminol, Blue Star  Confirmatory test for blood  Castle Meyer test  Hennastix Clandestine Labs: o Clandestine means secret o Covert of secret operations with a combination of apparatus’ and chemicals used to make controlled substances o Drug labs such as heroin, meth, marijuana, etc. o Chemicals are extremely dangerous when mixed together. o Special team needed to dispose of it in full body suits with oxygen tanks. Can lead to cancer if inhaled. Death Investigations o State of Utah: Medical Examiner (NOT A CORONER!) o Cause: Injury or disease that begins the train of events that ultimately leads to death. o Death: Mechanism and manner of death. o Mechanism: The biochemical or physiologic abnormally resulting in the death. 3 Helene Lam January 20, 2016 o Example: Gunshot wound to the head. The cause is the gunshot; the mechanism is the specific injuries to the brain. o Manner of death: Homicide, Suicide, Accident, Natural and Undetermined. o Rigor Mortis: Muscles become stiff up to 24-36 hours. o Livor Mortis (lividity): Discoloration of the body after death as blood settles.  Purple is NORMAL. Red means monoxide poisoning. o Decomposition: Skin turns green in the abdomen; body begins to swell due to bacterial gas formation. Occurs within 24-36 hours. Nose and mouth break down quickly. 4


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