WorksheetsFiber Evidence
Total questions: 15
Worksheet time: 15mins
Early collection of fibers in an investigation is critical. Within 24 hours, an estimated __% of fibers may have been lost from a crime scene.
85%
50%
95%
25%
When studying fibers, a forensic scientist will ask questions about
type of fiber
color of fiber
number of fibers found
all of the above
Which of the following is a nondestructive method of analyzing fibers?
microscopy
burning
chromatography
solvents
If many fibers were found at a crime scene, this would tell the investigators
there was a struggle or violence
there was a fire
there was a cheap textile used
Fibers found at a crime scene classify as what type of evidence?
biological
direct
class
individual
Which type of fiber is shown?
wool
silk
cotton
rayon
Fiber evidence can be transferred between individuals through which process?
Airborne transmission
Chemical reaction
Telepathy
Contact or physical interaction
Fiber evidence can be used to establish a link between a suspect and a crime scene through which principle?
Transfer principle
Reflection principle
Absorption principle
Gravity principle
Which technique is used to compare the color and diameter of fibers?
Chromatography
Tensile testing
Microscopy
Spectroscopy
What is the primary reason for collecting fiber evidence early in an investigation?
Fibers degrade quickly
Fibers can be easily contaminated
Fibers are often overlooked
Fibers can be lost due to environmental factors
Which of the following methods is used to determine the chemical composition of a fiber?
Microscopy
Infrared spectroscopy
Burning test
Density measurement
In forensic science, what does the term 'fiber morphology' refer to?
The color of the fiber
The shape and structure of the fiber
The chemical composition of the fiber
The origin of the fiber
Which of the following is a common source of natural fibers found at crime scenes?
Polyester
Nylon
Cotton
Acrylic
How can fiber evidence be used to support a hypothesis in a criminal investigation?
By identifying the manufacturer of the fiber
By linking a suspect to a crime scene
By determining the age of the fiber
By measuring the tensile strength of the fiber
What is the significance of fiber color in forensic analysis?
It helps determine the age of the fiber
It can link fibers to a specific textile
It indicates the fiber's tensile strength
It reveals the fiber's chemical composition
