Searching for fibres


In forensic fibre examination, the tape lifting technique is widely accepted to sample crime related fibres. Its ease of application on a crime scene, the transfer of adhesive tape onto a clear plastic sheet prevents contamination after sampling and allows for easy examination in the laboratory. Take the garment and lay it flat on the surface. Take some sticky tape, different stickiness and tackiness varieties exist for different surfaces. Take the tape and press onto the surface. This may have happened once, or more than once. When complete place the tape on a sheet of clear acetate. The acetate should then be examined either using the naked eye or a low powered microscope. When any fibres of interest have been identified they should be extracted using solvent and tweezers and mounted on a microscope slide for further examination.