Forensic Science Review Questions (Ch.
4)
[__________] is the method used to support a likely sequence of events at a crime scene by the
observation and evaluation of physical evidence and statements made by individuals involved
with the incident. - ANSCrime Scene Reconstruction
Reconstructing the circumstances of a crime scene is a team effort that may include the help of
law enforcement personnel, medical examiners, and [__________]. - ANScriminalists
Violent contact between individuals at a crime scene frequently produce bleeding and results in
the formation of [__________]. - ANSblood stain patterns
The proper interpretation of bloodstain patterns necessitates carefully planned [__________]
using surface materials comparable to those found at the crime scene. - ANScontrol experiment
Bloodstain patterns may convey to the analyst the location and movements of [__________] or
[__________] during the commission of a crime. - ANSvictims/suspects
T/F : Harder and less porous surfaces result in less spatter, whereas rough surfaces result in
stains with more spatter and serrated edges. - ANSTrue
Generally, bloodstain diameter (increases, decreases) with height. - ANSincreases
The [__________] and [__________] of blood striking an object my be discerned by the stain's
shape. - ANSdirection of travel/angle of impact
A drop of blood that strikes a surface at an angle of impact of approximately 90 degrees will be
close to (elliptical, circular) in shape. - ANScircular
The angle of impact of an individual bloodstain can be estimated using the ratio of [__________]
divided by [__________]. - ANSwidth of bloodstain/length of bloodstain
[__________} is the most common type of blood spatter found at a crime scene and is produced
when an object forcefully contacts a source of blood, - ANSImpact spatter
T/F : Forward spatter consists of the blood projected backward from the source, the back spatter
is projected outward and away from the source. - ANSFalse