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What is CODIS?
CODIS, which stands for Combined DNA Index System, is managed by the CODIS Unit of the Federal Bureau of Investigation and supports the National DNA Index System (NDIS), the State DNA Index System (SDIS) and the Local DNA Index System (LDIS) databases. The CODIS Unit is responsible for developing, providing, and supporting the CODIS Program to federal, state, and local crime laboratories in the United States and selected international law enforcement crime laboratories to foster the exchange and comparison of forensic DNA evidence from violent crime investigations. To learn more about CODIS and the CODIS Unit, visit the CODIS section of the Federal Bureau of Investigation (FBI) website.

Questions regarding CODIS and its databases should be directed to the FBI by calling the CODIS Unit at (703) 632-8315 or the FBI Headquarters at (202) 324-3000.

Last Updated: April 28, 2017

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