The collection of DNA evidence creates potential problems for the privacy and dignity of citizens. The collection of genetic material indentifying individuals gives the state important information that undeniably creates the potential for abuse. American history is rife with examples of personal information being collected and stored by the state and used for purposes of harassment and blackmail. The harsher punishments given out to Occupy Wall Street protestors who do not agree to have their irises scanned by the police reminds us that data collected by the state allegedly to identify criminals can also be used to identify (and harass) “political dissidents.” There is also the possibility that creating a class of “usual suspects” can lead to false prosecutions.
Admittedly, DNA evidence is different, and potentially more compatible with civil liberties, than other kinds of state surveillance, and civil libertarians would be unwise to reflexively reject any creation of DNA databases. First, while DNA evidence can sometimes lead to false positives (the identification of an innocent person as guilty), it is less likely to do so than other common forms of evidence. Second, DNA evidence can be a powerful tool for exonerating the innocent. DNA evidence has been crucial to many of the cases in which innocent people have been freed from lengthy prison sentences or death row, and it has also been critical in revealing the flaws in eyewitness identification.
So it’s possible for a state DNA database that takes steps to protect the privacy of individuals, makes potentially exonerating DNA evidence available to people convicted of crimes, and ensures the quality of the testing process to both reduce crime and increase protection of civil liberties. Whether the law signed by Cuomo does this is another matter. The New York bill sweeps too widely, and does not do enough to ensure the integrity of the collection and testing process.