Evidence which contains body fluid stains, tissue or skin, toxic chemicals or other contaminants must be properly marked for the safety of all personnel who might have to handle it. The crime scene technician, the property technician, the crime lab technician or criminalist, the investigator and the court personnel must all be aware of the hazards of the various pieces of evidence with which they may come into contact. These labels are printed on red-orange 3M ® super-adhesive stock and feature a split backing, which makes peeling off the paper backing easy. Each label measures 2.5" x 4" and comes in a pack of 100.