GEDmatch


GEDmatch is an online service to compare autosomal DNA data files from different testing companies. The website gained significant media coverage in April 2018 after it was used by law enforcement to identify a suspect in the Golden State Killer case in California. Other law enforcement agencies started using GEDmatch for violent crimes, making it "the de facto DNA and genealogy database for all of law enforcement," according to The Atlantics Sarah Zhang. In May 2019, GEDmatch then tightened its rules on privacy by requiring users to "opt in" to sharing their data with Law Enforcement. In December 2019 GEDmatch was acquired by Verogen, Inc, a sequencing company dedicated to forensic science. A new version of the existing site currently in development will focus on solving crimes using the more than 1.2 million DNA profiles hosted on GEDMatch's platform.

History

GEDmatch was founded in 2010 by Curtis Rogers, a retired businessman, and John Olson, a transportation engineer, in Lake Worth, Florida, with its main purpose to help "amateur and professional researchers and genealogists," including adoptees searching for birth parents.
GEDmatch users could upload their autosomal DNA test data from commercial DNA companies, with or without a GEDCOM file, to identify potential relatives who had also uploaded their profiles. Names of participants could be hidden by the use of aliases, but each account had to have an email address attached to it. Tools available on the GEDmatch site included sorting results by the closest matches to a user's autosomal DNA, whether one's matches match each other, genetic distance calculator, estimated number of generations to a common ancestor, whether one's parents are related, and ethnicity calculator. These tools do not disclose raw genetic data to other users.
Tier 1 premium membership included triangulation matching segment search and a custom comparison system. By May 2018, the GEDmatch database had 929,000 genetic profiles, with 7,300 users who paid $10 a month for Tier 1 premium membership which was used to pay for the $200,000 a year server costs. In 2018 the website was still being run by Rogers and Olsen with five volunteers; it had no full-time staff. Rogers said in 2018 that the site had already helped 10,000 adoptees find their biological parents.
Access for law enforcement to the user data was given without informed consent; negative user reactions led to the implementation of an opt-in with active recommendation for users to join.
In September 2019, the U.S Department of Justice released interim guidelines governing when federal investigators or federally funded investigations could use genetic genealogy to track down suspects in serious crimes—the first-ever policy covering how these databases should be used in law enforcement attempts to balance public safety and privacy concerns. The policy said “forensic genetic genealogy” should generally be used only for violent crimes such as murder and rape, as well as to identify human remains. Investigators should first exhaust traditional crime solving methods, including searching their own criminal DNA databases.
Under the new policy, investigators could not quietly upload a fake profile to a genealogy website, as some have done in hopes of finding a suspect's distant relatives, without first identifying themselves. And the site itself must have informed its users that law enforcement agencies may search their data.
The policy also barred federal investigators from using a suspect's DNA profile to look for genes related to disease risks or psychological traits. Another provision attempted to limit situations in which federal investigators secretly take a DNA sample from a suspect's relative—from a discarded cup or tissue, for example—to help home in on a suspect. The policy said the person must give their informed consent unless federal investigators have obtained a search warrant. These guidelines applied to federal investigators and federally funded investigations but did not apply to state or local law enforcement agencies - the vast majority of investigations.
In November 2019 a Florida judge approved a police request for a warrant to search the database of Gedmatch.
As of December 9, 2019, GEDmatch was acquired by Verogen, Inc, a sequencing company solely dedicated to forensic science. For the 1.2 million DNA profiles a new version of the existing site will focus on solving crimes. How much GEDmatch continues to serve genetic genealogical research is heavily discussed since then. BuzzFeed News reported that Verogen hopes to monetise the site by charging for access to the database and tools for DNA analysis. Founder Curtis Rogers in a website statement announces "basic tools will remain free", he will remain involved in all aspects of the business and Verogen will commit to the vision of a consumer genealogy site, take care of infrastructure and security/privacy. At the same time Rogers claims "genealogy has made our communities safer by putting violent criminals behind bars."

Usage by law enforcement

In December 2018 police forces in the United States said that, with the help of GEDmatch and genetic genealogy, they had been able to find suspects in a total of 28 cold murder and rape cases that year. Also in December 2018, Family Tree DNA allowed law enforcement agencies, including the FBI, to upload DNA profiles from crime scenes to help solve cold crimes. So from that time, GEDmatch was not the only site that could be used by law enforcement officials to solve crimes using genetic genealogy.
White people are overrepresented on GEDmatch, and are believed to be underrepresented in CODIS, the FBI's collection of DNA samples pulled from crime scenes, arrestees and criminal suspects. Thus, GEDmatch may be especially effective in facilitating the arrests of white suspects who might otherwise have eluded law enforcement. On May 18, 2019, GEDmatch revised its privacy statement to users as to the collection and use of genetic information, including the circumstances in which it may cooperate with law enforcement on use of its database. As of December 2019, GEDmatch has been credited for helping facilitate nearly 70 cold case arrests, and for helping in 11 Jane and John Doe identifications across the United States.

General cases solved or suspects identified using GEDmatch

In cooperation with American law enforcement organizations, Parabon NanoLabs started uploading DNA evidence from crime scenes to GEDmatch in an attempt to identify perpetrators. In November 2018 Parabon were reported to be working on 200 such cases. In May 2019 they said they were solving cold cases at the rate of about one a week.

DNA Doe Project

Two genealogical researchers, Dr. Colleen M. Fitzpatrick and Margaret Press, started the DNA Doe Project in 2017 to identify unknown bodies using GEDmatch. They use volunteers to construct the sometimes very large family trees resulting from genetic data, in order to identify missing persons. Their successes include the following:
In 2018 the Florida Department of Law Enforcement set up a Genetic Genealogy Program to use GEDmatch to solve cold cases. They reported in 2019 they had solved four cases.

Data policy

In April 2018, GEDmatch's privacy statement said it "exists to provide DNA and genealogy tools for comparison and research purposes." The statement said that this, "by its very nature, requires the sharing of information. Because of that, users participating in this site should expect that their information will be shared with other users."
After the arrest of the suspect in the Golden State Killer Case, co-founder Curtis Rogers, said he spent weeks trying to figure out the ethics of the situation and legal options to pursue. He concluded that they did not have the resources to require police to obtain court orders to use the website. Rogers said, "It has always been GEDmatch's policy to inform users that the database could be used for other uses, as set forth in the Site Policy," and that "While the database was created for genealogical research, it is important that GEDmatch participants understand the possible uses of their DNA, including identification of relatives that have committed crimes or were victims of crimes." In late May 2018, GEDmatch updated its policy to say law enforcement could use the database to identify perpetrators of a "violent crime", meaning "homicide or sexual assault", or to identify the remains of a deceased individual. The number of people uploading their DNA increased from 1,500 per day to 5,000 per day after the DeAngelo case went public. By November 2018 there were 1.2 million GEDmatch website users.
In May 2019 GEDmatch was used to help with the arrest of a teenager who was charged with violent assault. This was the first and so far last time GEDmatch had been used by Law Enforcement for a case that did not involve homicide, rape or kidnapping.
Civil libertarians have said the use of websites such as GEDmatch by law enforcement raises legal and privacy concerns. Professor Rori Rohlfs at San Francisco State University noted that, whereas California police had to get a judge's permission to search the CODIS police criminal database for a murder suspect's brother, they had no limitations when uploading a murder suspect's autosomal DNA to GEDmatch to identify relatives. In 2019 Charles E. Sydnor III, a Maryland delegate, sought a bill to prohibit law enforcement from using DNA databases for crime solving, but the bill was not passed. A state representative in Utah introduced a similar bill that would ban genetic genealogy searches by police.

Opt-in policy

In May 2019, GEDmatch began requiring people who had uploaded their DNA to its site to opt in to allow law enforcement agencies to access their information. This change in privacy policy was expected to limit law enforcement agencies ability to identify suspects using genetic genealogy. By May 2020, about 260,000 GEDmatch users had opted in.
Despite GEDmatch's opt-in policy, in Fall 2019 it was served with a warrant by law-enforcement in Florida, demanding access to all of its DNA profiles, including those of the vast majority of users who had not opted in to allow law enforcement access. GEDmatch complied with this warrant.