The FBI has published its thirteen core loci for the Combined DNA Index System (CODIS) database. STR Fact Sheets are available for all thirteen loci (click on locus name for the STR Fact Sheet).

For more information, see: Butler, J.M. (2006) Genetics and genomics of core STR loci used in human identity testing. J. Forensic Sci. 51(2): 253-265.


Note that as of January 1, 2017, the FBI will require an additional 7 STR loci for uploading DNA profiles to the National DNA Index System (NDIS). These additional STR loci are D1S1656, D2S441, D2S1338, D10S1248, D12S391, D19S433, and D22S1045. For further information, see https://www.fbi.gov/about-us/lab/biometric-analysis/codis/planned-process-and-timeline-for-implementation-of-additional-codis-core-loci and Hares, D.R. (2015) Selection and implementation of expanded CODIS core loci in the United States. Forensic Sci. Int. Genet. 17:33-34.

Click on locus name for the appropriate STR Fact Sheet.

U.S. population data collected by NIST - NIST 1036 dataset for 29 autosomal STR loci published in Hill, C.R., Duewer, D.L., Kline, M.C., Coble, M.D., Butler, J.M. (2013) U.S. population data for 29 autosomal STR loci. Forensic Sci. Int. Genet. 7: e82-e83

Original FBI Genotype Profiles for six Population Groups at the 13 CODIS Short Tandem Repeat Core Loci and Other PCR-Based Loci (Click on "Link to raw data" at the bottom of the page); for errata see https://ucr.fbi.gov/lab/biometric-analysis/codis/amended-fbi-str-final-6-16-15.pdf

2015 FBI Population Data for the Expanded CODIS Core STR Loci: https://ucr.fbi.gov/lab/biometric-analysis/codis/expanded-fbi-str-2015-final-6-16-15.pdf



Last Updated: 08/26/2015