Cops making 'great strides' in coming to grips with DNA backlog By Sisonke Mlamla Share Cape Town - The police management have confirmed that they have made “great strides” to overcome the backlog in DNA testing while the system to track and trace forensic exhibits was now fully up and running. Police spokesperson Vish Naidoo said that followed a reported "disappearance" of millions of forensic exhibits at the National Forensic DNA Database due to the Property Control and Exhibit Management (PCEM) system being shut down by the service provider in June 2020. Naidoo said in fact those exhibits were stored in the Forensic Service Laboratory Administration System and could only be accessed manually.