which Australian police can search against. The NAFIS contains fingerprint or palm print records for more than 3.3 million people, with a total of 5.6 million sets of prints. In the 2011-12 financial year users conducted 428,831 searches on prints from individuals. During this period, there was 367,751 searches conducted on finger and palm prints from latent fingerprints, which are collected at crime scenes. National Criminal Investigation DNA Database The National Criminal Investigation DNA Database (NCIDD) provides Australian police with the ability to match DNA profiles across state and territory borders. The NCIDD contains DNA profiles from samples collected by Australian police. These profiles are derived from samples collected at crime scenes, or from convicted offenders, suspects, items belonging to missing persons and unknown deceased persons. The NCIDD enables police agencies to compare DNA profiles from a crime scene with convicted offenders throughout Australia. Additionally, the database allows police to match profiles from two or more unsolved crime scenes, linking seemingly unrelated police investigations. By 30 June 2012, the NCIDD had linked 69,606 individuals to crime scenes, and had made 12,216 crime scene to crime scene links. At 31 December 2012, there were 713,200 profiles recorded on the NCIDD. As well as their ongoing day to day value to Australian police, the international value of these systems was proven following the Bali bombings in 2002 and the Australian response to the Thailand tsunami of 2004. Child Protection National Child Offender System The National Child Offender System (NCOS) provides operational police with tools to achieve nationally consistent registration and management of child offenders. The NCOS consists of the Australian National Child Offender Register (ANCOR) and the Managed Person System (MPS). The ANCOR supports online crime prevention and allows authorised police officers to register, case manage and share information about registered persons. It assists police to uphold child protection legislation in their state or territory. The MPS holds information on offenders who are charged but not convicted, or after an offender's reporting obligations have been completed. Child Exploitation Tracking System The Child Exploitation Tracking System (CETS) is a joint initiative between CrimTrac, police agencies and Microsoft. The primary objective of the CETS is to improve police efforts to identify children exposed to significant risk of sexual abuse, and reduce police exposure to child exploitation material. The CETS automatically matches seized child exploitation material with previously identified material. This makes it easier for