Chain of custody
A list of all people who came into possession of an item of evidence
Crime-scene Investigation
to recognize, document, photograph, and collect evidence
trace evidence
Materials found on the crime scene
Locard's Principle of change
states that when a person comes into contact with and object or another person, a cross transfer of physical evidence can occur.
Direct evidence
first hand observation such as eyewitness accounts or video evidence.
Circumstantial evidence
is an indirect evidence that can be used to imply a fact but that does not prove it.
Class evidence
narrows an identity to a group of persons or things
Individual evidence
Narrows an identity to a single person or thing
First responder
A responding law enforcement that holds the responsibility of all the safety of the individuals
Primary crime scene
the location that a crime first or mainly appears
Secondary crime scene
The movement to a new location after a crime occurs
Triangulation
a mathematical method of calculating the objects from the location of other objects
Paper bindle
A package for biological evidence to be contained
Datum point
A permanent or fixed point of reference such as a corner of a building or a tree
Crime-Scene reconstruction
A hypothesis of the sequence of events before the crime was committed through commission