U.S. flag

An official website of the United States government, Department of Justice.

Principles of Forensic DNA for Officers of the Court

Estimating STR Profile Frequencies - Statistical Software

Home  |  Glossary  |  Resources  |  Help  |  Contact Us  |  Course Map

logo image for CODIS Popstats. Illustration of united states with DNA double helix overtop.
National Institute of Justice (NIJ) (see reuse policy).

Forensic laboratories typically use PopStats (supplied by the Federal Bureau of Investigation as part of CODIS), excel or other software to perform the statistical DNA estimates. These software packages contain the necessary formulas to compute random match probabilities or likelihood ratios from published allele frequency data.

Back Forward