Module 2 Flashcards
recognition
scene survey, documentation, collection
identification
comparison testing
individualization
evaluation and interpretation
reconstruction
reporting and presenting
Team Members (NAME ALL 6)
First Police officer on scene: most impo.
Medic(if alive)
Investigators/ detective
Medical Examiner: if dead
Photographer: collect evidence/walk around w yellow tags
Lab experts: not at crime but breakdown evidence
Evidence (ALL 4)
Body: victim/suspect
Primary Crime scene: where the crime committed
secondary crime scene: ‘dumping sight’, where the body is
suspects and their properties
Corpus Deliciti means and how to prove
- MEANING: body of crime
PROVE:
-crime occurred (not staging)
-Person charged is the right person
Top reasons to commit a crime
money (owe), revenge (cheating), love triangle, emotion (love, hate, anger)
Y/N Do you have to prove a motive
NO
What Does first officer on scene do (5)
Assess crime scene(smells, sights, noise, observe
Detain witness (ask, get statements)
Arrest the perpetrator (not normally there)
Protect crime scene
Take notes (compile data, preserve evidence)
Basic Police Department Structure (4)
Patrol Division (pull over for tix, first at scene)
Investigate Divison (detectives: homicide, domestic)
Administrative Training (chief)
Tactical/ SWAT (DEA/FBI)
Medicolegal death investigator
rep from medical examiner or coroners office
- responsible for body
- confirm and pronounce death and identify
-photo and collect evidence at scene
-sketch body (trauma, rigor mortis)
- maintain jurisdiction
- ASSIST FAM
Police Investigator
Ideally 5 respond to scene
- Lead investigator responsible from crime scene(takes charge)
- One investigator responsible for the victim’s background, a second for witness interviews, two other canvas area
Case Detective Role
In charge of crime scene
- Document crime scene
-Interview original or reporting officer
- Examine crime scene w/ investigator
- Pass on necessary info to assisting detectives
Homicide Detective
-over everyone; relay info to command center
Assign role to detectives
Arrange for necessary resources
Keep logs of assignments
Crime Scene Investigation
Mentally prepare a reconstruction theory
Note any transient or conditional evidence that could change over time
Note weather conditions
Record initial observations (who, what, when, where, how)
Identify special needs within crime scene for personnel, precautions, notify superiors
Documentation of Crime Scene
Notes: date, time, location, weather, location of evidence, names involved
Photo: scene and surroundings, close up, various angles
Sketches: inclusion of dates, time, scale, reference points, measurements, legend
Video: allows narration to be included
Crime Scene Sketch
permanent record of items, conditions, and distance, size relationships, should include case indentifier
supplement photos
Link Method
based on linage theory of Locard; one type of evidence leads to another; experimental, logical/systematic; most common
Line or strip method
best in fields, look in their “lane” walking in a straight line
Grid method
-double line method (investigation work is done from left to right and then re-done from top to bottom)
-effective but time-consuming
zone method
- in houses/buildings
-teams assigned small zones for searching
Wheel/ ray method
Starting in the middle of an imaginary circle, each investigator moves in a direction straight out from the center
spiral
from the position of the core crime scene or on the perimeter and then moves in an outward direction.
-no physical barriers
Triangulation
measure between 2 posts
coordinate/ grid
divides crime into squares for mapping
suspended polar coordinates
used for evidence in a hole
baseline
set a N-S line and measure each piece of evidence from this line
GPS
notifies if need to look underground
DNA is packaged in
paper
Evidence Packaging
most fragile pack first
all individual , sealed, and labeled
arson:alum can
blood:crushpoof container
body fluids: air dry completely, put in paper
fingerprints: cards them put in paper or plastic
Druggist fold
of folding one end of a piece of paper over one-third, then folding the other end over that, and repeating the process
Chain of custody
written record of who has had evidence
- if not recorded evidence is unusable
statutory law
to regulate the system and bind people to follow a legal system
Common/ Case law
law that is derived from judicial decisions
Civil law
regulates the non-criminal rights (divorce)
criminal law
committing a crime
misdemeanor
minor crime (theft)
Felony
face jail time(robbery)
equity law
preventative (restraining order)
administrative law
military rule breaks
search warrant
legal document that allows a search of self/property
-MUST GIVE REASON
When do you not need a warrant
emergency
prevent loss of evidence
leading to a lawful arrest
consent
given probable cause(evidence to incriminate)
Plain view doctrine
allows an officer to seize evidence of a crime without a warrant when the evidence is clearly visible
Miranda vs Arizona
have to be given rights before interrogation (mirandized)
