[2] Keyword warrants are comparatively rare but have been used to request data from companies including Google, Microsoft, and Yahoo since at least 2017.
[6] Companies that collect DNA data have received warrants from law enforcement seeking to access their databases.
GEDMatch and Family Tree DNA have cooperated with such requests, while larger companies like Ancestry.com and 23andMe have stated they would fight such attempts by law enforcement.
Even if a perpetrator of a crime has not submitted their data to such companies, DNA samples belonging to relatives, even quite distant ones, have been used to identify suspects and criminals.
The Fourth Amendment specifies that warrants may only be issued "upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.