San Francisco - The Electronic Frontier Foundation (EFF) urged the Supreme Court Friday to block DNA collection from everyone arrested for a crime, arguing that law enforcement must get a warrant before forcing people to give samples of their genetic material.

EFF's amicus brief was filed Friday in Maryland v. King – a case challenging a law in the state of Maryland that requires DNA collection from all arrestees, whether they are ultimately convicted of a crime or not. Maryland officials claim that DNA is necessary for definitive identification, but they do not use the sample to "identify" the arrestee. Instead, they use the sample for other investigatory purposes – retaining and repeatedly accessing the wealth of personal information disclosed by an individual's genetic material despite lacking individualized suspicion connecting the arrestee to another crime. This violates the Fourth Amendment.