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National Criminal Investigation DNA Database

Our National Criminal Investigation DNA Database (NCIDD) provides Australian police and forensic scientists with a powerful national investigative tool, which crosses all state and territory boundaries.

Australian police use DNA evidence to inform or support investigations. The NCIDD helps Australian police solve crime by linking DNA profiles from a crime scene with convicted offenders, suspects, volunteers, missing persons or unknown deceased persons throughout Australia. The database also allows police to match profiles from two or more unsolved crime scenes, linking seemingly unrelated police investigations.

The NCIDD has recently been enhanced to enable kinship matching, familial searching and advanced direct matching.

The NCIDD Integrated Forensic Analysis (NCIDD-IFA) functionality provides our police partners and related agencies with enriched functionality for superior matching of DNA profiles across Australia's state and territory borders for law enforcement purposes including cold cases, disaster victim identification, missing persons and unidentified human remains.

DNA profiling is a forensic identification tool of considerable power. The chance of two unrelated individuals sharing the same DNA profile is in the order of one in a billion—making a match between a crime scene profile and a suspect crucially important.

DNA evidence has been used to implicate criminals in serious offences such as sexual assault, armed robbery and murder, as well as helping to solve many high volume crimes such as burglary. Just as importantly, DNA has also clearly established the innocence of many people who might otherwise be suspects for a crime.

The NCIDD is available 24 hours, seven days a week to all Australian police agencies. It has been operational nationally since April 2001, and since then more than 1.2 million DNA profiles have been uploaded. The NCIDD contains DNA profiles from samples collected by Australian police from crime scenes, convicted offenders, suspects, volunteers, items belonging to missing persons, and unknown deceased persons.

Our agency works with police agencies to ensure NCIDD operates in accordance with relevant Commonwealth, state and territory legislation governing collection and matching of DNA profiles.

Read the Minister of Home Affairs media release on the National Criminal Investigation DNA Database.

Last updated
2 November 2018