Class Notes (837,698)
Canada (510,399)
FSC239Y5 (435)
Ragab, H (11)
Lecture

FSC239 Lecture 2.docx

4 Pages
88 Views
Unlock Document

Department
Forensic Science
Course
FSC239Y5
Professor
Ragab, H
Semester
Fall

Description
September 18 , 2012 FSC239Y5 Lecture #2 Crime Scene Investigation & Evidence King of Crime Scene = Dr. Henry Lee What is a Crime Scene?  The Scene is simply defined as the actual site location where the incident took place  Classified: o Primary: - Where crime actually occurred o Secondary: - In some way related to the crime but is not where the actual crime took place. o Macroscopic: Big picture containing many small scenes o Microscopic: Small picture o Indoors & Outdoors: Objectives of Crime Scene Investigation  To recognize, collect, preserve, interpret & reconstruct all the relevant physical evidence at a CS.  Evidence split into 2 areas: o Testimonial: - Any witnessed accounts of an incident. o Physical Evidence: - Any material items What will the evidence do?  Prove that a crime has been committed  Link suspect with a scene or victim  Establish any key elements of a crime  Provide investigative leads  Identify criminal repeated behaviour  Establish identity of victim & suspect  Verify verbal witness testimony  Exonerate the innocent  Identify unknown substances  Reconstruct crime scene CS Management (CS Investigation Models)  Protocol Officers & Detectives  Specially trained CS civilian teams  Major CS team  Forensics Laboratory CS Scientists  Collaborative team CS Processing Protocol  Taken as follows: o Recognition or identification of CS  Inner Perimeter:-Inside of CSI  Outer Perimeter:- Outside of CSI (No outside person is allowed in) o Survey examination of CS o Documentation of CS o Collection & presentation of evidence o Reconstruction of events First Responding Officer  Duties of FRO (Safety first) o Assist victim o Search for & arrest suspect September 18 , 2012 FSC239Y5 Lecture #2 o Identify witness o Secure CS o Report any changes or alterations made to CS Securing the CS  Establish scene barriers  Assign a scene security officer  Initiate a written CS security log (Contamination) CS Survey  Walk-through  Note transient or conditional evidence & consider weather conditions  Note points of entry or exit & paths  Record brief initial observations  Consider precautions & equipment needed CS Documentation  Taking notes (Date, Time, etc.)  Video recording  Photographs  Sketching the CS – (Can be most important part)  Digital Imaging CS Searches  Different styles to ensure no items of physical evidence missed or lost  CS Methods: o Line or Strip Method:  One hand on shoulder of next person o Grid Method:  Covering Entire area twice o Zone Method:  Searching in quadrants o Wheel or Ray Method:  Starting at a specific point where evidence was found, and moving out o Spiral Method:  Search out from piece of evidence Beyond the CS  The following are to be collected and send to the forensics laboratory: o Victim Clothing o Fingernail scrapings o Head hair & pubic hair o Blood o Vaginal & anal & oral swabs (in sex related crimes) o Recovered bullets from body o Hard swabs from shooting (gunshot residue analysis) What is Physical evidence?  Any material object, introduced in trial, intended to prove a fact related to incident  Refers to any item that comes from nonliving origin.  While biological evidence alwa
More Less

Related notes for FSC239Y5

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit