GEDmatch is an open data personal genomics database and genealogy website founded in 2010 by Curtis Rogers and John Olson. Its main purpose is to help “amateur and professional researchers and genealogists,” including adoptees searching for birth parents. However, it recently has also become “the de facto DNA and genealogy database for all of law enforcement,” according to The Atlantic’s Sarah Zhang.
GEDmatch recently gained a lot of publicity after it was used by law enforcement officials to identify a suspect in the Golden State Killer case in California. Other law enforcement agencies started using GEDmatch for violent crimes, making it one of the most powerful tools available for identifying “cold case” criminals.
Sadly, the same site also has generated a lot of controversy involving the lack of privacy of personal DNA information, both for the people who uploaded their own DNA data and especially for the relatives of the uploaders whose DNA information also was included without their permission and usually without their knowledge. Such blatant disregard for personal privacy may be a violation of privacy laws in many countries.
The GEDmatch owners have now tightened the web site’s rules on privacy. The result is expected to make it much more difficult for law enforcement agencies to find suspects.