Supreme Court: Police may take your DNA

  • Article by: EMILY BAZELON , Slate
  • Updated: June 4, 2013 - 7:06 PM

The four justices in the minority on a recent U.S. Supreme Court ruling allowing a DNA database had the stronger case.


Illustration: DNA testing on people who've been arrested.

Photo: Mark Weber, Tribune Media Services

CameraStar Tribune photo galleries

Cameraview larger

DNA analysis is the major crime-solving advance of our time. It’s the science behind many exonerations, and many more guilty pleas. It’s far more accurate than fingerprinting or eyewitness identification. So the more DNA collection, the better, right?

Federal prosecutors and 28 states have answered yes by routinely collecting DNA samples from arrestees. On Monday, the Supreme Court approved Maryland’s DNA law, ushering in a new era of massive double-helix collection.

There are two oddities about the court’s 5-4 ruling. The first is that the majority pretended that this decision had little to do with solving crimes. The second is the lineup of justices.

The dissent is a smoking Antonin Scalia special — and he’s joined by Justices Elena Kagan, Ruth Bader Ginsburg and Sonia Sotomayor rather than the court’s conservatives. Anthony Kennedy picked off Stephen Breyer (along with Clarence Thomas, Samuel Alito and John Roberts) to eke out a majority.

But it’s Scalia who wins the argument.

Here’s the background: All 50 states collect DNA from people who have been convicted of crimes; that’s not what’s at issue here. Instead, we’re talking about whether the states can widen their databases of genetic material to include people who have been arrested and not yet found guilty.

Kennedy presents this as merely a basic booking procedure. It’s like fingerprinting, he says, and “the legitimate government interest” is “the need for law enforcement officers in a safe and accurate way to process and identify the persons and possessions they must take into custody.” It’s a simple matter of allowing the police to make sure they know whom they’ve got.

Kennedy is unconcerned about the level of intrusion. Cheek swabs count as a search under the Fourth Amendment, which protects us all from unreasonable searches and seizures. But since swabbing is minimally intrusive, it’s no big deal. The majority also dismisses the privacy concerns that come with DNA collection: “The argument that the testing at issue in this case reveals any private medical information at all is open to dispute,” Kennedy says.

Has Kennedy never watched a TV crime show? That is basically Scalia’s opening question, in an opinion he felt strongly enough about to read from the bench.

“The Court’s assertion that DNA is being taken, not to solve crimes, but to identify those in the State’s custody, taxes the credulity of the credulous,” he writes.

Then he decimates Kennedy’s discussion of booking and bail with a few obvious and unchallenged facts: It took weeks to test the DNA of Alonzo King, the arrested man who challenged Maryland’s DNA collection law, and months for the samples to come back from testing. By then, booking, arraignment and bail were long over.

“Does the Court really believe that Maryland did not know whom it was arraigning?” Scalia asks. “The truth, known to Maryland and increasingly to the reader: this search had nothing to do with establishing King’s identity.”

Why did Kennedy write his opinion in a way that makes him sound like the last guy on Earth to discover “Law & Order”? Because the Supreme Court has never held that if the police have probable cause to make an arrest, they can also search a suspect for evidence of past or future crimes.

Think about it for a second: Should getting arrested because you’re the suspect in one burglary mean the police can go search your house, without a warrant, on the theory that you might have stolen additional property?

If the real purpose of taking DNA from someone who has been arrested is to match his profile against the national database of unsolved crimes, then the court would have to admit to making a big and unprecedented move — one that allows the government to ensnare more and more of us in a thickening web of our own data.

Law enforcement over liberty, by a wide margin.

Scalia doesn’t belabor the privacy costs, though he could. It’s disingenuous to compare DNA collection to fingerprinting, given the additional information it conveys about sex, age and details of physical appearance. Scalia, though, is largely offended as a believer in originalism — the theory that the founders’ understanding of the Constitution should be our understanding. Scalia is sure this is not what they had in mind.

“Today’s judgment will, to be sure, have the beneficial effect of solving more crimes; then again, so would the taking of DNA samples from anyone who flies on an airplane (surely the Transportation Security Administration needs to know the ‘identity’ of the flying public), applies for a driver’s license, or attends a public school,” Scalia writes. “But I doubt that the proud men who wrote the charter of our liberties would have been so eager to open their mouths for royal inspection.”

  • get related content delivered to your inbox

  • manage my email subscriptions


  • about opinion

  • The Opinion section is produced by the Editorial Department to foster discussion about key issues. The Editorial Board represents the institutional voice of the Star Tribune and operates independently of the newsroom.

  • Submit a letter or commentary
Connect with twitterConnect with facebookConnect with Google+Connect with PinterestConnect with PinterestConnect with RssfeedConnect with email newsletters