Some states like Florida are requiring law enforcement to get a judge to sign off on a warrant in order to access DNA stored in a genealogical website. In the recent past, the Golden State Killer and a suspected Florida serial killer, Robert Hayes, were both nabbed thanks to a DNA match on a family tree website.. However, without even realizing it, by submitting your DNA to an ancestry database, you're giving the police access to the genetic makeup, relationships and health profiles of every relative-past, present and future-in your family, whether or not they ever agreed to be part of such a database. Learn more about your ad choices. Visit megaphone.fm/adchoices