crime scene Flashcards
types of information that can be obtained from forensics testing and examination of physical evidence
linkage of persons, scenes, or objects; investigative leads; information on the corpus delicti; information on the modus operandi; proving or disproving witness statements; identification of the suspect(s); identification of unknown substances; reconstruction of a crime
corpus delicti
a crime must be proved to have occurred before a person can be convicted
modus operandi
someone’s habits of working; mode of operation
crime scene management
- information management
- manpower management
- technology management
- logistics management
crime scene security measures
when first responders protect the crime scene
primary crime scene
site of the original criminal activity
secondary crime scene
subsequent crime scenes
macroscopic crime scene
the broad crime scene
microscopic crime scene
the smaller crime scenes in the broad crime scene
walk-through
preliminary scene survey
crime scene map
use of imaging technology and mapping technology to create a virtual layout
the W’s
who, what, when, where, and why
videography
video recording of the crime scene
crime scene sketch
documenting the crime scene in sketches
geometric patterns
- link
2 line or strip - grid
- zone
- wheel or ray
- spiral method
types of sketches
rough and finished sketch
techniques used to obtain measurements for the crime scene sketch
triangulation; baseline; and polar coordinates
crime scene reconstruction
process of determining or eliminating the events that could have occurred at the crime scene
process in reconstructing a crime scene
- data collection
- conjecture
- hypothesis formulation
- testing
- theory formulation
major tasks of documentation
- note taking
- videography
- photography
- sketching
coroner
government agent charged with responsibility for death investigations
medical examiners
a medically qualified public officer whose duty is to investigate deaths occurring under unusual or suspicious circumstances, to perform postmortems, and to initiate inquests
forensic pathologist
physicians specializing in the diagnose of diseas
cause of death
disease or injury that initiated the lethal chain of events that led to death
mechanism of death
biochemical or physiological abnormality produced by the cause of death that is incompatible with life