5.1 FLASHCARD - Fiber & Textile Analysis

Front

Early collection of fibers in an investigation is critical. Within 24 hours, an estimated:

Back

95% of all fibers may have fallen from a victim or been lost from a crime scene.

Front

Natural fibers come from _______________.

Back

plant and animal sources

Front

Which of the following would be classed as a synthetic fiber? Options: wool, polyester, cotton, silk

Back

polyester

Front

Which of the following would be classed as a completely natural fiber? Options: acrylic, hemp, nylon, rayon

Back

hemp

Front

True or False? Synthetic fibers are ALL made from petroleum and are cellulose-based fibers

Back

False

Front

Fibers are woven into textiles or fabrics.

Back

True

Front

A forensic lab technician conducts a burn test on a piece of fabric. The fabric begins to melt and form beads and smells of burning plastic. This fabric is likely made of natural fibers. True or False?

Back

False

Front

The weave pattern shown below is a plain/tabby weave

Back

False