Reverse search warrant
A reverse search warrant is a type of search warrant used in the United States, in which law enforcement obtains a court order for information from technology companies to identify a group of people who may be suspects in a crime. They differ from traditional search warrants, which typically apply to specific individuals.[1][2] Geo-fence warrants, which seek data on mobile phone users who were in a specific location at a given time, and keyword warrants, which request information on users who searched specific phrases, are two types of reverse search warrants.[2]
History
Reverse location warrants were first used in 2016, and have become increasingly widely used by United States law enforcement.[1] Google reported that it had received 982 reverse location warrants in 2018, 8,396 in 2019, and 11,554 in 2020.[2] A 2021 transparency report showed that 25% of data requests from law enforcement to Google were geo-fence data requests.[3] Google is the most common recipient of reverse location warrants and the main provider of such data,[4][5] although companies including Apple, Snapchat, Lyft, and Uber have also received such warrants.[1][3]
Types
Geo-fence warrant
Geo-fence warrants, also called reverse location warrants, seek to compel data from search engine companies and other technology companies that collect mobile location data, to determine which users may have been in a specific location at a given time.[2]
Keyword warrant
Keyword search warrants seek to compel search engine companies to release data on users who have searched specific phrases—for example, an address that was later the location of a crime.[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]
Genealogy database warrants
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.[7][8] These warrants attempt to connect DNA samples from crime scenes with data belonging to commercial DNA testing companies. 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.[7]
Legality
Some lawyers and privacy experts have argued reverse search warrants are unconstitutional under the
Groups including the New York Civil Liberties Union and the Surveillance Technology Oversight Project joined state senator Zellnor Myrie and assembly member Dan Quart in 2020 to begin work on legislation in New York that would prohibit both geo-fence and keyword warrants.[3] Groups including the Electronic Frontier Foundation have opposed geofence warrants in amicus briefs filed in motions to quash such orders to disclose geofence data.[9]
See also
References
- ^ a b c d e "Geofence Warrants and the Fourth Amendment". Harvard Law Review. 134 (7). May 10, 2021.
- ^ a b c d e Bhuiyan, Johana (September 16, 2021). "The new warrant: how US police mine Google for your location and search history". the Guardian. Retrieved October 17, 2021.
- ^ ISSN 1059-1028. Retrieved October 17, 2021.
- ^ "Geofence Warrants and the Fourth Amendment". Harvard Law Review. 134 (7). May 10, 2021.
- JSTOR 48617799– via JSTOR.
- ^ O'Sullivan, Andrea (October 12, 2021). "The Government's Secret 'Google Search' Warrant Trap". Reason. Retrieved October 17, 2021.
- ^ a b Aldhous, Peter (February 3, 2020). "A Court Tried To Force Ancestry.com To Open Up Its DNA Database To Police. The Company Said No". BuzzFeed News. Retrieved October 17, 2021.
- ISSN 2366-7044.
- ^ a b Lynch, Jennifer; Sobel, Nathaniel (August 31, 2021). "New Federal Court Rulings Find Geofence Warrants Unconstitutional". Electronic Frontier Foundation. Retrieved October 18, 2021.