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Introduction to Forensics
Chapter 1
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Constructed the first high powered microscope What is Forensic Science Revolutionized ballistic science Identification system based on body measurements Explain Locard’s Exchange Principal Discovered the DNA double helix Developed anthropometry Categorized blood into 4 type
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Investigates discharged bullets, cartridge cases, and ammunition Incorporates chemistry, physics and geology to identify and compare physical evidence Examines body fluids and organs for the presence of drugs and poisons Investigates blood samples, body fluids, hair and fiber samples and DNA profiling Sends out specially trained personal to the crime scene to collect and preserve physical evidence Handwriting analysis, and analyzes paper, ink and burned or charred documents
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Medical doctor who specializes in forensic pathology The root cause of the sequence of events that lead to death The actual physiological change, or variation in the body’s inner workings which caused the death Injury or disease that finally killed the victim Deaths caused by someone else other than the victim Initial injury that led to a sequence of events which caused the death of the victim
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Friction injury removing superficial layers of skin The 4 types of determinations can be made on the body from a gunshot wound No soot, burning gunpowder follows the bullet to the victim causing burns Examination of human skeletal remains to determine the identity of unidentified bones Tearing injury due to friction or impact with a blunt object Entrance wound is surrounded by soot
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Chapter 2: Processing the Crime Scene
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During this process the technician will begin to develop a theory on the crime What are some things the technician will process the scene for ( 2 things) The 5 steps considered basic crime scene protocol Who is responsible for creating the crime scene boundaries, separating individuals at the scene What are the benefits to making a sketch of the crime scene (3) During what part of the basic protocol does the technician examine the scene to see if their theory matches
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Any evidence items that contain DNA Procedure in which the officer on scene and the technician exchange information What are 3 things you should do when you find trace evidence at a scene Search method in where you first walk horizontally across the scene and then cross over vertically Causes blood to glow Search method where the scene is divided into areas Any material; hair, fibers, glass, soil, paint, etc. found at the crime scene on a person or object
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True or False when taking a picture at a crime scene you shouldn’t use a ruler for scale List 5 things which should be included in a rough sketch of the crime scene What should be done after you take photos of the crime scene Detailed description of the scene as well as the physical evidence What are 6 things you find in a case file True or False; a rough sketch is used in court
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Check for Understanding 4
The 4 things you should take into consideration when determining evidence collection True or False: The investigator doesn’t need to sign or initial the evidence tape Describe the swab collection technique True or False: It’s ok to fold wet evidence onto it’s self List 5 tools used to collect evidence The 4 things which should be included when marking evidence
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Check for Understanding 5
Tracking document beginning with detailed scene notes Used for reporting scene activities and processing results What are the 5 things involved in establishing the chain of custody Documents the transfer of evidence from an investigator to another or to another location Used when analyzing evidence in the laboratory 3 Things you’ll find in the chain of custody documentation
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