The Supreme Court Sees the Future: 90-Minute DNA Matches, and Less Crime

Is being told to open up for an oral swab more intrusive than taking fingerprints?

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Alex Grimm/Reuters

"I think this is perhaps the most important criminal procedure case that this Court has heard in decades." Justice Samuel Alito said from the bench Wednesday. "This is what is at stake: Lots of murders, lots of rapes that can be -- that can be solved using this new technology that involves a very minimal intrusion on personal privacy. But why isn't this [police DNA sampling] the fingerprinting of the twenty-first century?"

Alito is the Supreme Court's leading criminal-procedure hawk. But equally important, Alito is the Court's leading futurist. Far more than any of his colleagues, he sees the Court's role as peering into the future implications of changes in technology, whether on video games and the First Amendment, the Internet and privacy, or global-positioning systems and police surveillance. Usually he doesn't like what he sees on the horizon; indeed, he is the closest thing the Court has to Suzanne Collins, dystopian author of the Hunger Games trilogy. But DNA sampling, and nationwide databases, apparently hold the rare promise of a brighter tomorrow.

Alito stands out because lawyers and judges don't much like the future; usually we are far more comfortable peering back into the past for guidance and precedent. Chief Justice John G. Roberts sounded very lawyerly indeed Tuesday when he complained about being asked to look even two years ahead. "How can I base a decision today on what you tell me is going to happen in two years?" he asked Katherine Winfree, who was arguing for the state of Maryland. She had forecast that a promised new system will soon allow DNA analysis within 90 minutes of a police sample. "Don't I have to base a decision on what we have today?" Roberts asked.

At issue in Maryland v. King is Maryland's statute permitting police to take a DNA swab from the mouth of any suspect arrested on charges of committing or attempting burglary or a crime of violence. (The samples aren't sent to a database until the suspect is arraigned; if no charges are filed, or the suspect is acquitted, the sample is destroyed.) In April 2009, Alonzo King was arrested by local police in Wicomico County, Maryland, on charges of assault. The state police lab generated a DNA profile from King's DNA swab, and a few months later that profile matched one generated after an unsolved rape six years before.

King was later convicted of the rape. He appealed his conviction, and the Maryland Court of Appeals reversed it, holding that the DNA sample had violated his Fourth Amendment right to be free of "unreasonable searches and seizures."

The stakes in the case are high. Twenty-seven other states, and the federal government, maintain similar DNA databases including swabs from arrestees. At the opening of her argument, Winfree had told the Court that in Maryland alone, the DNA sampling program since 2009 has led to "225 matches, 75 prosecutions, and 42 convictions."

Justice Antonin Scalia interrupted to suggest that "I'll bet you if you conducted a lot of unreasonable searches and seizures, you'd get more convictions too."

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Garrett Epps is a contributing writer for The Atlantic. He teaches constitutional law and creative writing for law students at the University of Baltimore. His latest book is American Justice 2014: Nine Clashing Visions on the Supreme Court.

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