FORS-2106EL Lecture Notes - Lecture 10: Barricade Tape, Starch, Glycogen
27 Jun 2018
School
Department
Course
Professor
Forensic Biology - Day 10 2017.10.26
Midterm
50-60 multiple choice
1 essay question, 10 marks
1 hour long
online on D2L under quizzes
Crime Scene Investigation
-Crime Scene
-The location/place where an illegal act was committed
-Any place where evidence relating to the crime is found
-An area where we will potentially find physical evidence of a crime
-This extends to the body/remains, therefore once the body is transported to the
morgue, the morgue now becomes the crime scene as well
-Physical EvidenceNo
-Any and all objects that can establish that a crime has been committed or can
provide a link between a crime and its victim or a crime and its perpetrators
-The idea is to establish a link between 2 things, or not be able to link 2 things
together
-Since we are trying to eliminate the suspects from the linkage, since this helps to
hold no bias
-DNA evidence is like any other evidence that is dependant on the context of the
situation
-There are times when you will find evidence linking a suspect to the crime, but you
must ask yourself if there is an alternate explanation as to why the linkage may be
other then them simply being guilty of the crime
-Evidence Dynamics
-Recognition of evidence is key
-You must be able to pick out the pieces of evidence that are important and will
give you information on the crime, since you can’t just seize everything
-Must be selective as to what evidence to seize
-You must be careful to notice if the act of moving something will affect or change
it before moving/seize it
-Much of this is done by police at the scene
-Recognize, preserve, and collect
-Scene Rules and Protocol
-Secure and Isolate the Crime Scene
-1st officer on the scene
-Medical assistance is the priority
-If there is a body that is on the scene, unless you can visibly easily see the
body is no way alive
-Arresting perpetrator/suspect at the scene
find more resources at oneclass.com
find more resources at oneclass.com
-Other duties:
-Exclude all unauthorized personnel from the scene
-Erect barricades (crime scene tape)
-Who to Exclude
-The press
-Higher level officers not associated with the case
-Anyone who wants to enter the scene must be sign the log first, and may be
asked to
-Neighbours
-The curious
-Why? Ans. Scene Integrity
-They can bring things into a scene that were not there before, or alter things from
the scene
-The Scene Log
-Each person entering the scene:
-Name
-Date and Time entering/exiting the scene
-Name of person who enters this information
-Recording the Scene
-Recovery is destructive
-Must record the scene and evidence in that scene as found
-Must photograph everything exactly the way it was found, and record what you
are altering
-Evidence at the scene can include almost anything
-Photographs of the Scene
-Overall approach to the scene
-For rooms 360 degree all walls, floors, ceiling if necessary
-Any area of importance and adjacent areas
-Entrance and exits to the scene
-Photograph of Evidence
-Position of the body and location relative to the scene
-Path of contamination
-You will start examining the scene from the area of least concentration of
evidence to highest concentration of evidence, and this will also ensure that you
contaminate the scene as least as possible
-Close-ups of injuries, weapons, fingerprints, any other evidence
-Photos with and without a scale
-ABFO-#2 scale
-Video: use same rules, in selective narration
-No audio usually
-Sketch of Scene
-Usually done by the investigator/forensic identification officer or specialized
personnel
-Rough version done at scene
-Show locations of all recovered items and other important features
-Distances to be measured using two fixed points (ex. walls of a room)
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
1 hour long online on d2l under quizzes. The location/place where an illegal act was committed. Any place where evidence relating to the crime is found. An area where we will potentially nd physical evidence of a crime. This extends to the body/remains, therefore once the body is transported to the morgue, the morgue now becomes the crime scene as well. Any and all objects that can establish that a crime has been committed or can provide a link between a crime and its victim or a crime and its perpetrators. The idea is to establish a link between 2 things, or not be able to link 2 things together. Since we are trying to eliminate the suspects from the linkage, since this helps to hold no bias. Dna evidence is like any other evidence that is dependant on the context of the situation.
