The Crime Scene
Evidence that proves an alleged fact.
What is direct evidence?
The criminal act of deliberately setting a fire.
What is arson?
A document whose source or authenticity is uncertain.
What is a questioned document?
The fluid portion of the blood.
What is plasma?
The DNA base pairing rules.
What is A-T and C-G?
In a pattern that fits the environment.
How is a crime scene searched?
This is the most serious level of arson crime.
What is 1st degree arson?
This is the most common ridge pattern.
What is the loop?
A test that tells investigators if a substance is blood.
What is a presumptive test?
This is the digital DNA database.
DNA is an example of this type of evidence.
What is individual evidence? (circumstantial also acceptable)
In an airtight metal container.
How is fire scene evidence packaged?
A practice that can supposedly reveal information about an author's personality.
What is graphology?
Someone with B antigens and Rh factor present on their red blood cells.
What is a person with a B+ blood type?
These people are the only exception to DNA being individual evidence.
What are identical twins?
This member of the investigation team is most likely the first on the scene.
To determine the cause of the fire.
What is the goal of a fire scene investigator?
A known sample of handwriting.
What is an exemplar?
The part of the blood drop that points in the direction that the blood was traveling.
What is the tail?
This must be done before running the gel in gel electrophoresis.
What is extracting the DNA and separating it into fragments?
This type of packaging is used for very small, dry pieces of evidence.
What is a paper bindle?
These three components are necessary to start and sustain fire.
What are fuel, oxygen, and heat?
This type of fingerprint is an invisible print left behind by the oils on the skin.
What is a latent print?
The angle of impact if a blood spatter is a perfect circle.
What is 90°?
When using gel electrophoresis for a paternity test, this should always be the first step in your analysis of the DNA bands.