Chapter 4 (Crime Scene Reconstruction)

Widely spaced bloody shoeprints with satellite spatter between the shoeprints were likely deposited by an individual who was

Running

The removal of an object or surface that was located between the origin of blood and the target surface during the bloodstain deposition leaves behind

A void

Rough surfaces usually result in stains with

Satellite spatter

A blood stain that impacts a surface at a low angle will have a ________ tail than one that impacts at a higher angle.

Longer

The approximate drying time of a pool of blood can be used to estimate timing of events at a crime scene and is dependent upon

The environmental condition of the scene

A trail pattern leading away from the victim at a stabbing scene was most likely created by

Blood dripping from the murder weapon

Which of the following is of paramount importance in the interpretation of bloodstain patterns?

the surface texture

The pointed end of a bloodstain always faces

its direction of travel

In the grid method of bloodstain documentation, a grid of squares of known dimensions is created over an entire pattern in order to

show the relative sizes of bloodstains in photographs

Which weapon would create cast-off patterns consisting of small droplets in a linear pattern?

Knife

transfer patterns are produced when the object makes contact with the surface and the object is removed without any movement.

simple

A blood droplet deposited at an angle of impact of about 90º (directly vertical to the surface) will:

be approximately circular in shape

In general, as both the force and velocity of impact increase, what happens to the diameter of the resulting blood droplets?

decreases

What is created when an object with blood on it touches one that does not have blood on it?

transfer pattern

The presence of a cast-off pattern shows that there were more than ________ blow(s) delivered:

one

The direction of a ________ may show movements of objects or bodies while the pattern was still forming or after the blood has dried.

flow pattern

The amount of spatter from a blood droplet falling on a hard, nonporous surface is ________ that of a drop of blood of equal size, falling from the same distance, onto a softer, porous surface.

less than

When an object blocks the deposition of blood spatter onto a target surface or object, the result is a:

void pattern

In the grid method of bloodstain documentation, a grid of squares of known dimensions is created over an entire pattern in order to

show the relative sizes of bloodstains in photographs