DIY: Testing fiber specimens by burning
Introduction Burning is one of the oldest methods used for determining fiber class. In this test, the questioned specimen fiber is ignited over the burner. Do forensic scientists then determine the behavior of the specific fiber, such as how it burn? Does it catch fire immediately? What odor does it produce while burning? Does it […]
DIY: Testing fiber specimens by dye stripping
Introduction A stripping (Bleaching) dye test is commonly used in forensic labs for removing dyes from the colored fiber specimen. The presence of dyes interferes with fabric testing, so they must be stripped before dyeing tests. This test also helps us in identifying the characteristics of questioned fiber specimen.Ā Each fiber reacts differently with stripping […]