Terms
transfer of evidence directly from one surface to another
primary transfer
This method divides the crime scene area up into logical areas that can be searched by team members
zone
cigarette smoke at a crime scene
transient
essential facts that show a crime has taken place
Corpus Delicti
You get ____ chance to search the crime scene
1
pattern evidence and trace evidence can be transferred between the victim and suspect, with other objects, and the crime scene.
Transfer theory
crime scene is searched swirling toward the center or away from the center. May step on evidence as they walk through crime scene.
spiral method
type of evidence that can be used to prove or disprove a suspect's alibi
pattern evidence
characteristic way in which a particular criminal will commit a crime
"MO" modus operandi
When you draw a crime scene measurements should be taken from _________
2 fixed points (2 walls, etc)
the principle that transfer evidence is create whenever 2 surfaces come into contact with one another
Locard's Theory of Exchange
This method _______ is a modified version of the _________ method. once an area has been searched the area is searched perpendicular to the original lines of search.
grid, line
license is what type of evidence
Associative Evidence
why is it important to keep the chain of custody?
it is a record of everything that happened to the evidenced from the moment it is discovered until it arrives in court or is destroyed after the case. Keeps evidence from being lost or destroyed
5 techniques for crime scene documentation are
notes, photographs, videos, diagram, audio recording
anything that may be recognized, documented, collected and analyzed in order to determine the facts of what happened during a crime
physical evidence
This method doesn't follow a geometric pattern; rather it is a systematic logical way of looking at each piece of evidence and determining where to look from there
link method
fingerprints found on a water bottle is this type of evidence
Transfer evidence
_________ evidence shares the same characteristics with other members of that group
Class
Why should whoever is collecting evidence wear gloves and change between different evidence pieces?
So the evidence is not cross-contaminated
individualization
The most important thing when searching the crime scene is to not __________________
destroy or tamper with evidence
location of a bullet casing in relation to a victim's body is this type of evidence
Conditional (produced by an event or action)
_______ evidence are unique to a person
Individual
The five steps in analyzing physical evidence are:
Recognition, Identification, Comparison, Individualization, and reconstruction