Death Investigation Assessment Review PDF
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Maria Martinez
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Summary
This document provides an overview of death investigation, covering topics such as cause and manner of death, trauma analysis, and the autopsy process. It details factors such as livor mortis, rigor mortis, and carbon monoxide poisoning. The document outlines different types of trauma and the autopsy process.
Full Transcript
**Death** +-----------------------------------+-----------------------------------+ | Cause and Manner of Death | The cause of death is the reason | | | for a death | | |...
**Death** +-----------------------------------+-----------------------------------+ | Cause and Manner of Death | The cause of death is the reason | | | for a death | | | | | | (BFT. GSW) and the manner of | | | death is how a person dies | | | (natural, accident, suicide, | | | homicide, undetermined) | +===================================+===================================+ | Algor, Rigor, Livor mortis | Livor mortis is the color of | | | death, rigor mortis is the | | | rigidity of death, and algor | | | mortis is the temperature of | | | death | +-----------------------------------+-----------------------------------+ | Carbon monoxide poisoning | When someone breathes in carbon | | | monoxide. | | | | | | The hemoglobin binds to the | | | carbon monoxide instead of the | | | oxygen, preventing oxygen from | | | transporting throughout the body. | +-----------------------------------+-----------------------------------+ | Factors affecting body cooling | The ambient temperature, | | rates | clothing, body weight, muscle | | | mass | +-----------------------------------+-----------------------------------+ | Deaths investigated by the | Forensic pathologists investigate | | forensic pathologist | natural deaths, accidents, | | | suicides, homicides and | | | undetermined deaths | +-----------------------------------+-----------------------------------+ ------------- **Trauma:** ------------- Blunt force trauma Caused by unsharpened objects, falling, contact collisions and can form abrasions, contusions and lacerations -------------------------------------- --------------------------------------------------------------------------------------------------------------- Contusion A bruise ,Trauma caused by broken blood vessels below the surface of the skin. Hematoma A swollen bruise Laceration A tear in the tissue caused by a sliding or crushing force Categories of BFT BFT can cause abrasions, contusions, and lacerations Abrasion A portion of the epidermis is removed as a result of the body rubbing against a rough surface Incised wound A wound that\'s longer than it is deep and is produced by a sharp-edged object Pattern abrasion An imprint on the body of the object used Therapeutic wound A wound produced for medical reasons, like surgery Chop wound A wound produced by axes, meat clovers, or machetes penetrating versus perforating wound Penetrating wounds puncture organs, while perforating wounds go through organs Stippling or tattooing The pattern formed by gunpowder; It shows how close or far the person was shot from ---------------------------------------- **The Autopsy Process: Open Response** ---------------------------------------- +-----------------------------------+-----------------------------------+ | Trace evidence / signs of | Some trace evidence is glass, | | struggle | hair, and fibers. | | | | | | Some signs of struggle are | | | defensive wounds. like bruises | | | and cuts. | +===================================+===================================+ | Body bag | A bag to carry a dead body. A new | | | one is used for each body to | | | ensure that only evidence from | | | that body is contained within the | | | bag. | +-----------------------------------+-----------------------------------+ | Autopsy table / Body block | The autopsy table is a slanted, | | | aluminum table with raised edges | | | that has several faucets and | | | drains. The body block is a | | | rubber or plastic \"brick\" | | | placed under the patient\'s back, | | | and causes the corpse\'s chest to | | | protrude forward while the arms | | | and neck fall back. | +-----------------------------------+-----------------------------------+ | Scalpel / Y-incision | A scalpel is a knife with a small | | | blade, used to cut bodies open, | | | usually used by a surgeon or | | | forensic pathologist. A | | | Y-incision is an incision that\'s | | | made from shoulder to shoulder | | | meeting at the breast bone and | | | extends down to the pubic bone; | | | On a woman, this incision is | | | curved around the bottom of the | | | breasts before meeting at the | | | breast bone. | +-----------------------------------+-----------------------------------+ | Bone saw | Used to cut through bones | +-----------------------------------+-----------------------------------+ | Chest plate | A protective piece that covers | | | the front of the chest | +-----------------------------------+-----------------------------------+ | Tissue samples | An analysis of tissue samples is | | | made to see | | | | | | if there is trauma or disease | +-----------------------------------+-----------------------------------+ | Organ examination | Each organ is weighed, examined, | | | and cross-sectioned, then | | | they\'re sampled for microscopic | | | examination | +-----------------------------------+-----------------------------------+ | Toxicology screen | Also known as a tox screen, a | | | device that looks for drugs and | | | poisons | +-----------------------------------+-----------------------------------+ | Skull and brain | The examiner puts a body block | | | behind the neck like a pillow, | | | raising the patient\'s head so | | | that it\'s easier to remove the | | | brain, then proceeds to make a | | | cut with a scalpel from behind | | | one ear, across the forehead, to | | | the other ear and around. The cut | | | is divided, and the scalp is | | | pulled away from the skull in two | | | flaps. The front flap goes over | | | the patient\'s face and the rear | | | flap over the back of the neck. | +-----------------------------------+-----------------------------------+ | Baseball stitch | The skull is then cut with an | | | electric saw to create a \"cap\" | | | that can be pried off, exposing | | | the brain. When the cap is off, | | | the dura remains attached to the | | | bottom of the skull cap. The | | | brain is exposed. The brain\'s | | | connection to the spinal cord and | | | tentorium are severed, and the | | | brain is easily lifted out of the | | | skull for examination. | +-----------------------------------+-----------------------------------+ | Morgue | A place in the autopsy room where | | | dead bodies are stored | +-----------------------------------+-----------------------------------+ | Autopsy Report | The autopsy is documented; The | | | steps taken, the date, time, | | | place, and who is in attendance | | | and photographs of injuries | +-----------------------------------+-----------------------------------+