SCOTUS Says DNA Collection Permissible After Arrest
schwit1 writes in with news about a ruling on the legality of the police collecting your DNA after an arrest. "A sharply divided Supreme Court on Monday said police can routinely take DNA from people they arrest, equating a DNA cheek swab to other common jailhouse procedures like fingerprinting. 'Taking and analyzing a cheek swab of the arrestee DNA is, like fingerprinting and photographing, a legitimate police booking procedure that is reasonable under the Fourth Amendment,' Justice Anthony Kennedy wrote for the court's five-justice majority. But the four dissenting justices said that the court was allowing a major change in police powers. 'Make no mistake about it: because of today's decision, your DNA can be taken and entered into a national database if you are ever arrested, rightly or wrongly, and for whatever reason,' conservative Justice Antonin Scalia said in a sharp dissent which he read aloud in the courtroom. Details of ruling available here.
Then I was shocked to see Scalia was in the dissenting group.
Unless something's changed in the past year, forensics does not retain medically-sensitive genetic information. They pick up on random, fast-changing mutations called SNPs which are specifically chosen so that they don't reveal medical information. There was a kerfuffle when it was discovered that one of them might be linked to schizophrenia. The data retention policies are stupidly thuggish, like every other component of US law enforcement, but your medical insurance is not in danger.
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Digging through the Supreme Court Database, this happened exactly once before (Scalia, Kagan, Sotomayor, and Ginsberg all agreeing in dissent). It happened in Williams v. Illinois, which was interestingly also a DNA testing case. The question at the time was "Whether a state rule of evidence allowing an expert witness to testify about the results of DNA testing performed by non-testifying analysts, where the defendant has no opportunity to confront the actual analysts, violates the Confrontation Clause." The majority held that it did not violate the confrontation clause, with these four justices in dissent.