Forensic Science Fabrics

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%

Which of the following are ways to collect fiber evidence?

• vacuuming

• adhesive tape

• dusting

• forceps

• burning

Two methods that can analyze fibers without damaging them are:

• polarizing light microscopy and infrared spectroscopy.

• polarizing light spectroscopy and infrared microscopy.

• heat and light.

• None of these choices.

Who was famous for typing blood from stains on fabrics found at crime scenes?

• Edmond Locard

• Leone Lattes

• Albert Osborn

• Francis Galton

What is the primary purpose of analyzing fabric fibers in forensic science?

• To determine the color of the fabric

• To identify the manufacturer of the fabric

• To link a suspect to a crime scene

• To assess the durability of the fabric

Which of the following techniques is used to compare the microscopic characteristics of fabric fibers?

• Gas chromatography

• Mass spectrometry

• Polarizing light microscopy

• X-ray diffraction

What type of evidence are fabric fibers considered in forensic investigations?

• Class evidence

• Individual evidence

• Trace evidence

• Direct evidence

Which of the following is a natural fiber that might be analyzed in forensic science?

• Nylon

• Polyester

• Cotton

• Acrylic

In forensic science, what is the significance of fiber cross-section analysis?

• To determine the age of the fabric

• To identify the weave pattern

• To distinguish between different types of fibers

• To measure the thickness of the fabric

What is the role of infrared spectroscopy in fiber analysis?

• To determine the color of the fiber

• To identify the chemical composition of the fiber

• To measure the length of the fiber

• To assess the tensile strength of the fiber

Tags

NGSS.HS-PS4-3