Crime Scene Basics
The person associated with someone suspected of committing a crime
What is an accomplice?
The most abundant cells in our blood that carry oxygen & contain hemoglobin
What are red blood cells?
Blood stains created from the application of force to the area where the blood originated
What is Spatter?
The three specific classes for all fingerprints based upon their visual pattern.
What are Arches, loops and whorls?
This is stored in our DNA, specifically within our chromosomes.
What is genetic information?
Hair is composed of this protein, which is also a primary component of finger and toe nails
What is Keratin?
Statement of where a suspect was at the time of a crime
What is an alibi?
The yellowish liquid portion of blood that contains electrolytes, nutrients and vitamins, hormones, proteins, and antibodies.
What is plasma?
Small drops of blood that break off from the parent spatter when the blood droplet hits a surface
What are satellite spatters?
The most common class of fingerprints
What are loops?
This is what DNA stands for
What is Deoxyribonucleic Acid?
The three principal parts that hair is composed of.
This type of evidence can be analyzed to give clues to the location of a crime, movement of victim, and type of weapon.
What is Blood Spatter?
The clotting factors that are carried in plasma, they clot together to seal a wound and prevent loss of blood.
What are Platelets?
The droplet from where a satellite spatter originates
What is a parent drop?
These patterns are named for their positions related to the radius and ulna bone.
What are radial and ulnar loops?
Nitrogen Bases that form the middle of a DNA molecule
Chemical compounds that reflect certain wavelengths of visible light to create hair color.
What are pigments?
Shoeprints, tool marks, tire tracks, bite marks, and marks on a fired bullet are several examples of this kind of evidence.
What is Impression Evidence?
Proteins that exist on the surface of all of your red blood cells
What are Agglutinogens?
Tests used to detect blood at crime scenes based upon the properties of hemoglobin in the blood
What are Blood Reagant Tests?
The most rare class of fingerprint.
What are arches?
An electronic database of DNA profiles that can identify suspects.
Central core of hair that may be absent in some people.
What is the medulla?
In order to test hair evidence for nuclear DNA, this must be present.
What is The Root!
This blood type is the Universal Donor, because it can give to any blood type
What is Type O?
What are passive bloodstains?
When a print has more than two deltas, it is most likely this kind of print.
What is an Accidental Whorl?
Thymine pairs with this nucleotide.
What is Adenine?
The most important component in determining from which individual a human hair may have come
What is the cortex?
This principle states that "with contact between two items, there will be an exchange," first recognized by Edmund Locard.
What is Locard's Exchange Principle?
The process of clotting thrombocytes to seal a wound and prevent loss of blood
Patterns that occur when a force is applied to the source of the blood
What are projected bloodstains.
Another word for fingerprints.
What is a Dactylogram?
Adenine pairs with Thymine, just like these two nucleotides pair together.
What is Cytosine and Guanine?
This part of the hair structure contains pigment
What is the cortex?