DNA Testing Companies and Law Enforcement

Where do the major DNA testing companies stand on law enforcement matching for forensic samples? Here’s what you need to know.


As use of genetic genealogy techniques by law enforcement investigators becomes increasingly common, DNA testing companies have created clear policies for how they feel about the use of their databases in these investigations. In short: Ancestry and 23andMe will fight tooth and nail to keep criminal investigators out of their DNA database. MyHeritage also appears to be in this camp. However, at Family Tree DNA, users are automatically opted-in to having their DNA samples (autosomal, mtDNA and YDNA) compared against samples uploaded by criminal investigators.

Let’s be clear: everyone wants to stop the bad guys. These companies who have openly denied access to law enforcement are doing it because they feel it is in the best interest of their customers, who paid for a genealogy service, not because they don’t want to help.

Here are more details you should know about each company and their interactions with law enforcement. (You may also want to read this article: Best DNA Tests to Take.)

DNA testing and law enforcement policies



23andMe has this to say to its customers: “We work very hard to protect your information from unauthorized access from law enforcement. However, under certain circumstances, your information may be subject to disclosure pursuant to a judicial or other government subpoena, warrant or order, or in coordination with regulatory authorities. If such a situation arises, we have to comply with valid governmental requests and we will notify the affected individual(s) unless the legal request prevents us from doing so.”

The webpage with the above statement links to their Transparency Report on law enforcement requests and to their Guide for Law Enforcement, which says the same thing to criminal investigators: “23andMe chooses to use all practical legal and administrative resources to resist requests from law enforcement, and we do not share customer data with any public databases, or with entities that may increase the risk of law enforcement access. In certain circumstances, however, 23andMe may be required by law to comply with a valid court order, subpoena, or search warrant for genetic or personal information.”


Ancestry shares its approach to privacy in this quick video:


A privacy-centered FAQ covers more specifics, including Ancestry’s policy on law enforcement requests: “For all requests, Ancestry requires valid legal process in writing before producing any personal information about our users. We publish an annual transparency report describing requests we received. When we receive a request, our team reviews it for compliance with legal requirements and our policies. If we believe a request is overly broad, we will seek to narrow it. We notify users prior to turning over any information in order to give them an opportunity to challenge the request unless it would be counterproductive or we are legally prevented from doing so.” (The site’s Guide for Law Enforcement repeats essentially the same thing.)

Family Tree DNA

Family Tree DNA test kit.jpg

Family Tree DNA has taken a different approach. As stated to customers, “On a case-by-case basis, FamilyTreeDNA grants law enforcement and, in some cases, third parties working with law enforcement permission to upload a genetic file in an effort to help identify the remains of a deceased individual or a perpetrator of a homicide, abduction, or sexual assault.”

“If you are opted in to Law Enforcement Matching, you will only show up in the matches list of a law enforcement user account if ALL of the following requirements are met:

  • You are a DNA relative of the DNA file uploaded to the law enforcement user account

  • Both you and the law enforcement user account have the same matching levels selected

If a law enforcement user account meets the above requirements, the information accessible to them will be identical to the information you’ve made accessible to your other matches….If you opt out of Law Enforcement Matching, these accounts will not be able to see you as a match, but you will continue to see them as a match.”

Family Tree DNA’s Law Enforcement Guide lays out specific rules governing the submission of forensic samples to their database, and under what circumstances they will release individual user information to investigators. Here’s how to opt out of law enforcement matching at Family Tree DNA.

If you opt out of Law Enforcement Matching, law enforcement registered accounts that are genetic relatives will not be able to see you as a match, but you will continue to see them as one.

MyHeritage DNA

MyHeritage DNA test kit.jpg

MyHeritage’s Terms and Conditions include the explicit statement that “using the DNA Services for law enforcement purposes, forensic examinations, criminal investigations, ‘cold case’ investigations, identification of unknown deceased people, location of relatives of deceased people using cadaver DNA, and/or all similar purposes, is strictly prohibited, unless a court order is obtained. It is our policy to resist law enforcement inquiries to protect the privacy of our customers.”


GEDmatch, that database that acts as a collector for DNA test results, was the first database to be used successfully by law enforcement. Currently the GEDmatch website states that these two types of DNA data are permitted to be uploaded: “DNA obtained and authorized by law enforcement to identify a perpetrator of a violent crime against another individual, where 'violent crime' is defined as murder, nonnegligent manslaughter, aggravated rape, robbery, or aggravated assault” and “DNA obtained and authorized by law enforcement to identify remains of a deceased individual.”

As of May 2019, everyone in the GEDmatch database was opted out of law enforcement involvement and you have to go back in and opt in if you want to be a part of it.

Genetic genealogy and law enforcement

Again, everyone wants to solve crimes. As a genetic genealogy community, we need to be talking more about how our wonderful group of caring individuals (‘cause let’s be honest, we are a pretty fantastic group) can protect individual privacy and help make our communities safer.

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