WorksheetsUnit 2Day 2 FS Test Review: Blood, Ballistics, Arson, GenKnow
Total questions: 32
Worksheet time: 16mins
What type of blood spatter is typically created from a gunshot?
medium velocity
high velocity
cast-off
void
What pattern of blood spatter is this?
arterial gushes
splash
smear
pool
What would cause medium velocity blood spatter?
Baseball bat
Human hand
Hand grenade
Gunshot
What type of spatter creates the largest blood droplets?
Low velocity impact
High velocity impact
Medium velocity impact
What type of blood-spatter creates the smallest blood drops?
Low velocity impact
Medium velocity impact
High velocity impact
How does the velocity of impact change the blood stain pattern?
Higher velocity, larger diameter
higher velocity, smaller diameter
lower velocity, smaller diameter
Medium velocity, small diameter
What are the small droplets that form from a larger drop of blood called?
Spatter
Spines
Splatter
Spines
Satellites
Satellites
A
B
C
D
A
B
C
D
E
A
B
C
D
E
Unique impressions left on a bullet, caused by _____
ballistivs; trajectory
lands and grooves; barrell
striations; rifling
bullet; caliber
The number 1 on the diagram is pointing to ____?
cartridge/casing
bullet
propellant
primer
The number 2 on the diagram is pointing to ____?
cartridge/casing
bullet
propellant
primer
The number 3 on the diagram is pointing to ____?
cartridge/casing
bullet
propellant
primer
The number 4 on the diagram is pointing to ____?
cartridge/casing
bullet
propellant
rim
The number 5 on the diagram is pointing to ____?
cartridge/casing
bullet
propellant
primer
What sustains a fire?
oxygen
fuel
heat
chain reaction
all of these
What are the three things that are needed to start and maintain any fire?
heat, fuel and dry ice
heat, fuel and oxygen
fuel, helium and cold
oxygen, heat and baking soda
A cross transfer of evidence between a suspect and victim
Chain of Custody
District Attorney
Locard Exchange principle
Define the "Locard's Principle."
the scientific examination of evidence in a criminal investigation
states that criminals always take a trace of something with them or leave a trace of something behind at the scene of the crime
a type of evidence
the person who runs the Locard School
What is the number one motive for arson?
insurance fraud
cover up another crime
unattended cooking
mental illness/pyromania
What is a VENTILATION LIMITED FIRE?
A fire that has limited oxygen available due to being in a closed space.
A fire that has limited fuel due to being in a closed space
A fire that has limited heat due to being in a closed space.
A fire that is started in a ventilation system of an air conditioner.
Arson evidence is typically packaged in ____ to preserve accelerants that evaporate.
wooden boxes with taped lids
paper envelopes with sealed edges
plastic bags with zipper tops
metal paint cans
What pattern is useful in finding a point of origin in a fire?
A "W" pattern
A "V" pattern
An "O" pattern
A "Z" pattern
An accelerant is required to start and maintain a fire.
TRUE
FALSE
What is the difference between 1st and 2nd degree arson in the state of Florida?
There is no difference
death of an animal happens with 1st degree but not with 2nd degree
with 1st degree, fire is set to a building that is currently or typically occupied with humans
death of a human occurs with 1st degree but not with 2nd degree
What is the number one cause of FATAL fires?
eating in bed
portable heaters
portable heaters
smoking in bed
If an investigator was able to see a pour pattern on the floor, this would be clear evidence that
an accelerant was used and this was an accidental fire
an accelerant was used and this was arson
no accelerant was used and this arson
no accelerant was used and this was an accident
.
Chain of custody is when
officers sign in and out of a crime scene
evidence is transferred and documented according to specific protocols
you are hand-cuffed with chains
What is the database CODIS used for?
fingerprint database
ballistics database
Bitemark Database
DNA database
What is the database NIBIN used for?
fingerprint database
ballistics database
Bitemark Database
DNA database
What is the database IAFIS used for?
fingerprint database
ballistics database
Bitemark Database
DNA database
