Rhino notching is a form of identification. The rhino is tranquillized and during the veterinary procedure a DNA sample is taken and provided to the RHODIS database for identification. A microchip is inserted into their horn and their ears are notched so that they are readily identifiable to park rangers and caregivers. This is also a vital step in securing the rhinos and deterring poaching. RhODIS® (Rhino DNA Index System) is a project that was initiated by the Veterinary Genetics Laboratory of the University of Pretoria in order to help with the plight of the rhinos. The Veterinary Genetics Laboratory is collecting DNA samples of rhinos across the country to create a database using the unique DNA profile of individual rhinos. The goal is for all rhinos to be on the system. This will deter poachers and assist in forensic prosecutions.