Chapter 3 Crime Scene Investigation Flashcards
Initial Responding Officer IRO
-First to arrive on scene
-bring order and control to the situation
-identify potential, victims suspects and witnesses
-aid any injured individuals
-ensure the scene is safe to process
Primary Detective
-Responsible for the overall case investigation
-speak with witnesses and track down leads
-consult with csi on items of evidence to be recovered
-interview/interrogate suspects
Crime Scene Investigator
document the scene as observed notes, photographs sketches
identify relevant items of evidence
properly, recover, process and preserve evidence
Crime Scene Reconstructionist
Called to perform a specific analysis in which they are an expert in that field
Scene Documentation
Note Taking
Photography
Sketching
Overall Photographs
depict the scene as a whole
help the jury members to understand the layout
areas of entry/exit routes a suspect may have taken
Midrange photographs
give more detail about the items of evidence indentity
will establish what the item is and where
Close-up photographs
give more detail about the items of evidence identified
close-up photographs
give the most detail about the item of evidence, the damage, or the injury that is being documented
-comparative analysis
Header
Case Number
Offense
Location
Data and Time
Sketch Creator
Legend
Evidence a item/number/letter
Evidence measurements
Evidence description
non-evidence item descriptions
Scales
“Not to scale’
Scene dimensions
north arrow
Rectangular Coordination
two perpendicular landmarks
Triangular coordination
two reference points are used to take measurements
Preliminary search
initial walk through with iro
searching for the presence of evidence
note taking occurs at this time
