Types of Evidence
This is a small but measurable amount of physical or biological material found at a crime scene.
What is trace evidence?
Hair has these two components to it where one has the DNA and the other is the part we see.
What is the root and shaft?
This is the reason why fiber transfer is significant in forensics.
What is the ability to link it to a crime scene?
What is circumstantial?
This is firsthand observation evidence such as eyewitness accounts, video cameras, confessions, etc, whereas its counterpart is indirect evidence and implies a fact, but does not directly prove it
What is direct and indirect evidence?
What is the cuticle, the cortex, and the medulla?
This is a common method to analyze fibers.
What is a microscopic examination?
This is the role that infrared spectroscopy plays in fiber analysis.
What is, determines the chemical composition of fibers?
What is to narrow down a suspect pool or to compare DNA from a crime scene.
This narrows the identity to a
group of persons or things whereas its counterpart narrows an identity to a single person or thing.
What is class and individual evidence?
Fibers made from plants, animals, and minerals are called this, and fibers like nylon and polyester are called this.
If a victim was kidnapped by car this is where forensic analysts would look for evidence.
What is the suspect's car?
These are characteristics analyzed in fiber forensics.
What are color, diameter, weave, texture, density, tensile strength, composition, etc
This is how DNA evidence helps in identifying unknown victims
These are the two categories of trace evidence.
What are abiotic and biotic?
This is how unique fibers can tie a suspect to a crime.
What is they are produced in a small amount for a limited time and they can have unusual colors
This is why it's important to collect fiber evidence quickly.
What is fibers can be easily lost or contaminated?
This property helps determine the fiber's origin.
This is how DNA evidence be used to exonerate someone.
What is through a DNA mismatch?
This says that when people come into contact with other people and surfaces a cross-transfer of evidence occurs
What is Locard's Exchange Principle?
These are the three ways hair and fibers can be picked up
This is a limiting factor of fiber analysis.
What is they are not unique to a single source.
These fibers are the most commonly analyzed in forensics.
What are textile fibers?
This can affect the reliability of DNA evidence.
What is sample degradation?