Final

Question 1

Medium energy impact spatter is usually associated with a ____ type crime.

Answer 1

beating

Question 2

There is no ____ ____ between low, medium, and high energy blood spatter.

Answer 2

size overlap

Question 3

High energy blood spatter is the result of an energy or force ___ than 100 feet per second.

Answer 3

more

Question 4

Bloodstain evidence is a reproducible phenomenon, which has been shown through repeated research in the discipline.

Answer 4

true

Question 5

The pointed or tapered end of a parent bloodstain will point in the direction it came from.

Answer 5

true

Question 6

The analyst can often determine which hand the blows were struck with in a beating scene by looking at the cast off patterns.

Answer 6

true

Question 7

An individual blood drop in free fall is in a _____ shape during most of the fall.

Answer 7

spherical

Question 8

Back spatter, in a normal environment, will travel approximately ___ feet at maximum in a horizontal plane.

Answer 8

four

Question 9

Misting blood is always associated with a gunshot occurrence.

Answer 9

false

Question 10

Two examples of low energy bloodstains would be ____ ____ and ____ ____ ____.

Answer 10

blood drips; passive blood flows

Question 11

To locate the point/area of convergence you need to?

Answer 11

draw a line through the long axis of each well-formed stain

Question 12

In order to identify a point/area of origin for a group of bloodstains you would?

Answer 12

1. identify well-formed stains
2. measure the distance from these stains to a common intersection
3. determine impact angle of each stain
4. use tan to find height
   height is the point of origin

Question 13

area of origin

Answer 13

3D (height)

Question 14

area of convergence

Answer 14

2D

Question 15

the best surface for producing well-formed bloodstains include?

Answer 15

smooth surfaces

Question 16

What is the minimum number of well-formed bloodstains that are recommended to identify a point/area of origin?

Answer 16

four

Question 17

The mouse trap experiment is intended to simulate?

Answer 17

a beating

Question 18

The best bloodstains to use for reconstruction in the mouse trap experiment are table top/horizontal surface.

Answer 18

true

Question 19

The first impact to a person’s head will not likely produce cast-off.

Answer 19

true

Question 20

In cast-off trails you can identify the minimum number of blows.

Answer 20

true

Question 21

One important constant is that blood droplets retain a generally _____ shape while in flight. This is the direct result of a phenomenon known as surface tension.

Answer 21

spherical

Question 22

The written history of bloodstain pattern analysis dates back to the 1800’s.

Answer 22

true

Question 23

Parabolic arcs are affected by:

Answer 23

volume, gravity, air resistance

Question 24

Which factors directly affect misting blood spatter’s horizontal flight path?

Answer 24

gravity, energy, air resistance

Question 25

In order to make some determination as to what happened to produce static bloodstains the analyst will study which of the following?

Answer 25

dispersion pattern, shape, size, number (all of the above)

Question 26

In some instances it is possible to include or exclude a weapon as possibly making a cast-off trail by:

Answer 26

size of bloodstains and width of blood trail

Question 27

Who was thought by many to be the modern day father of bloodstain analysis?

Answer 27

Herbert MacDonnel

Question 28

Who worked on the Sam Sheppard case?

Answer 28

Paul Kirk

Question 29

A blood flow created by gravity alone, with no circulatory action involved is?

Answer 29

passive blood flow

Question 30

A stain created when an object moves through a pre-existing bloodstain on another surface is a?

Answer 30

wipe