Physical Evidence Flashcards
physical evidence
Any evidence that can establish a link between the victim and the perpetrator
The object of an identification is to
determine the physical or chemical identity with as near absolute certainty as existing analytical techniques will permit
The process of identification first requires
the adoption of testing procedures that give characteristic results for specific standard materials
Once these test results have been established
they may be permanently recorded and used repeatedly to prove the identity of suspect material
Second, identification requires that
the number and type of tests needed to identify a substance be sufficient to exclude all other substances
Key for fibers is
for the CSI to know how and when to collect them
The value of class physical evidence lies in
the ability to corroborate events with data in a manner to make in nearly free from any human bias or error
The purpose of recognizing physical evidence is to
enhance the collection and analysis of material remains
It is difficult to ascertain the importance a given piece of evidence as ultimately
the weight of the evidence will be determined by a jury
The strength of the comparison is
decided by the jury
purpose of examining physical evidence by a forensic scientist is
usually undertaken for identification or comparison purposes
The purpose of identification is the determination of the physical or chemical identity of a substance with
as near absolute certainty as existing analytical techniques will permit
AFIS
Automated Fingerprint Identification System
CODIS
Complex DNA Index System
Maryland V. King
arrested suspects supported by probable cause for serious offenses DNA sample is like fingerprinting and photographing
