1. What is a scallop? An edge characteristic that
appears like a series of
curves around the edge of
the stain.
2. T/F? If prevention fails to prevent an acci- False
dental exposure to a bloodborne pathogen,
the CDC recommends that the person seek
treatment within 3 days from the exposure.
3. Which of the following is/are TRUE about f. none of the above.
bloodborne pathogens?
a. HBV is the most severe form of hepatitis
b. In a liquid state, the HIV virus can survive
outsie the human body for us to 5 days.
c. Scraping dried bloodstains for collection
lessons the risk of airborne particles
d.A and C
e.B and C
f. none of the above
4. What term defines a process that involves blowback or drawback ef-
blood being deposited inside the barrel of a fect
weapon after discharge?
5. What of the following is/are TRUE about d. Both A and B
wipes and swipes based on OSAC terminol-
ogy?
a. Swipes indicate the relative motion based
on characteristics
b. Wipes are a type of altered stain
c. A victim is bleeding from the head and
their head gets pressed against and dragged
down a wall leaving a transfer. This is known
as a wipe
d. Both A and B
e. Both B and C
f. All of the above
, FIS 409 all quizzes
6. Assuming that a substance at the scene is Are the stains circular or el-
blood, what is the next question in the B&G liptical?
classification system?
7. BPA is based on a simple theory, which Fluid, External Forces
states that blood as a ________will react to
________ in a predictable fashion.
8. What are the linear characteristics within the Striations
center of a swipe called?
9. In the legacy system, stains resulting Medium Velocity
from blunt force trauma (between 1-4 mm)
were referred to as _______________ spat-
ter/stains
10. What is a complex pattern? A pattern that includes char-
acteristics of several/multi-
ple categories.
11. This person established three basic groups Dr. Josef Radziki (last name
of bloodstains, based on their mechanisms is most important here)
of creation, that was published in the IABPA
library. These included bloodstains from
1) extravasations,
2) various instruments
3) wiping or removal of blood
12. You visualize a bloodstain that was dis- skeletonized stain or skele-
turbed but has an outline of its periphery. tonization
This is known as a perimeter stain (OSAC)
but may be referred to as ________________.
13. Why does B&G not include altered stains in Do not define a singularly
their classification system? distinctive stain or pattern
Or Can occur across multi-
ple stain/pattern types
14. Drip Pattern
, FIS 409 all quizzes
What term describes the pattern created by
one liquid dripping into another liquid (one
of the liquids must be blood)?
15. When finding the gamma angle, from which The direction of travel/the
end of the bloodstain do you follow? tail.
16. Which of the following is/are TRUE regarding d. Both A and B
oscillation of blood droplets in flight?
a. Longer in-flight time decreases the
amount of oscillation
b. Surface tension acts to maintain a spheri-
cal shape
c. Larger volume droplets cease oscillation
before smaller volume droplets
d. Both A and B
e. Both B and C
f. All of the above
17. T/F? As you drop blood from increasing False
heights (assume everything else is con-
stant), the diameter of the resulting stain will
increase.
18. Which of the following is/are TRUE regarding d. Both A and C
liquid-to-liquid impacts?
a. The droplet collapses from the bottom up
b. Less blood is forced into the rim during
the middle phases
c. A rolling motion is added to the end phase
d. Both A and C
e. Both A and B
f. None of the above
19. What are the 4 phases of impact (in order)? Contact/Collapse, Dis-
placement, Dispersion, and
Retraction