Fiber Lifting Techniques

Before trace evidence can be identified, it must be collected. When a crime is committed, crime scene investigators typically use special lights to find trace evidence that is not obvious to the naked eye. After locating a fiber or other trace material, crime scene investigators photograph it and collect it using techniques such as ‘lifting’ it with special lifting tape or collecting the sample with forceps. They also document the location of the sample and begin a meticulous record of the individuals who handle or transport the evidence as it makes its way to the forensic laboratory, where trace evidence identification occurs. Protection of trace evidence from loss or contamination is essential to ensure that it can be used in a court of law if need be.