A nondestructive technique using high intensity light sources is used by the CSI to detect these (Beaufort-Moore, 2009). This technique causes some fibres to fluoresce, allowing their presence to become more apparent. Fibres and textiles collected at a scene should be photographed in situ before being recovered (Robertson and Roux, 1999), although this is problematic where areas are being speculatively taped for the possibility of fibre transfer, but no visible traces are present that might be captured in a photograph. There are two types of methods commonly used by forensic investigators for the recovery of fibres and textiles from a crime scene: tape lifts and forceps. When utilising either technique there are two essential concepts investigators must maintain. The first is that it is important to leave the fibres intact and the second is to minimise disturbances to the area or object in which the exhibit is being collected. Therefore, both methods must be conducted in a manner that allows for preservation.