Ch. 3 Flashcards
Regardless of the agency they work for, all investigators share several essential traits. They must be able to understand and apply the following concepts:
- Science
- Psychology
- Communication
- Law
- Ethics
- Economics
An investigative team consists of the following:
- Crime Scene Technician
- Crime Scene Photographer
- Dispatcher
- Patrol Officer
- Criminalist
- Forensic Scientist
- Confidential Informant
- Other Team Members
The goals and objectives of Criminal Investigation can be summed up in the simple acronym C.I.A.
Crime-Establish whether or not a crime has been committed
Identification-Identify suspects involved in the crime
Association-Associate suspects, victims,and the crime scene
What are the four stages of investigations:
- Crime Detection
- Preliminary Investigation
- Follow-up Investigation
- Case Preparation and Prosecution
In essence, _____ ______ involve the initial collection of all information and evidence that is readily available following the discovery of a suspected criminal offense.
Preliminary Investigations
The following is a sequence of investigative events and duties that investigators can adjust to meet the individual needs of their investigations and crime scenes upon arrival:
- Establish Division of Labor
- Obtain information from First Responders
- Interview Key Individuals
- Conduct a Reassessment of the Crime Scene
- Canvass the Crime Scene Vicinity
The order of interviews should begin with the _____ and proceed to ______ that have the most detailed first hand accounts of the crime and/or suspect.
Victim
Witnesses
Map out the Crime Scene. This map contains the geographic locations of three main areas of the crime scene: the core, the inner area, and the outer area also known as
- Crime Scene Core
- Peripheral Crime Scene
- Outer or Extended area
For crime scene photos to be admitted as evidence at trial, however, they must meet certain legal standards. First, the photos must be _____ ___ ________ to the case at hand; that is, they must be able to prove or disprove any disputed fact and legal issue in the case.
Relevant and Material
Fragile and perishable evidence such as ________ and other impressions should be photographed immediately before it is degraded or destroyed.
Fingerprints
These challenges, some of which have been successful are based on the assumption that without a ____ _____ _____ there is no way to prove beyond a reasonable doubt that a photo in question has not been photoshopped or modified in some other way.
True negative image
____ ____ _____ provide an overview of the crime scene, and are usually taken in outdoor locations.
Long-Range Photos
Showing the context of physical evidence within the crime scene is the function of ____ _____ ____.
Mid-range photo
___ ____ ____ are taken to show specific details of the evidence.
Close-range photos
When photos are taken containing scales or other items such as evidence markers, it is recommended to take ___ _____ ___ containing these items and _____ that depicts the evidence item alone.
One separate shot
Another