http://science.sciencemag.org/content/360/6393/1078.full
expanding law enforcement investigations to encompass genealogical databases may help to remedy the racial and ethnic disparities that plague traditional forensic searches. In accordance with state laws, official forensic databases are typically limited to individuals arrested or convicted of certain crimes. Racial and ethnic disparities throughout the criminal justice system are therefore reproduced in the racial and ethnic makeup of these forensic databases. Genealogical databases, by contrast, are biased toward different demographics. The 23andMe database, for instance, consists disproportionately of individuals of European descent. Including genealogical databases in forensic searches might thus begin to redress, in at least one respect, disparities in the criminal justice system.