Identifying and comparing textile fibers is often important in establishing links between suspect and victim or suspect and scene of crime. Techniques used to examine and compare these fibers include microscopy, microspectrophotometry, thin layer chromatography and infrared spectroscopy. Application of these techniques is dependent on the nature of the sample, and therefore the forensic scientist needs to be knowledgeable about fiber production. The three main techniques of microfiber production are conventional spinning, conjugate spinning, and island-in-sea configuration. The article presents details of these processes and of the three main uses for microfibers: as artificial silks, artificial suedes, and high-density material in a variety of garments from underwear and hosiery to coats and all-weather gear. The article describes two cases in which microfibers were transferred and assesses the evidential value. Figures, references