We've discussed on this blog how genealogy databases like GEDmatch warehouse the DNA results of huge numbers of people who have taken part in genetic testing for genealogy purposes.
If you take a genealogy test, you could be exposing your family, from your kids to your distant relatives, to the possibility of having their genetics exposed to third parties, including law enforcement.
Do people have any real privacy rights when it comes to their DNA? Who should have the right to own or control information about your DNA?
If you remember the Emmy Award-winning documentary series "Making a Murderer," you know there is good reason to suppose that the defendants, Steven Avery and Brendan Dassey, were wrongfully convicted of the murder of Teresa Halbach. As the documentary showed, Attorney Dean Strang and I represented Avery at trial.
"Rapid DNA" machines are a new phenomenon in criminal justice. Able to process a DNA sample in just 90 minutes, they're often called "the magic box." The machines are small enough to be used by police departments. Until now, DNA testing has been performed exclusively by forensic scientists in neutral, accredited labs.
A Junction City, Wisconsin, man has been free on bail since a Dane County judge overturned his conviction 11 months ago. Richard Beranek, now 59, was convicted in 1990 on charges of rape, battery and burglary, even though six witnesses testified that he was in North Dakota when the crime took place. He was sentenced to 243 years in prison and served 29 years.
According to the National Registry of Exonerations, at least 139 people were exonerated of crimes in the U.S. last year. Some 2,100 have been exonerated since 1989, when DNA evidence was first used to exonerate someone. Today, people are being found innocent using a variety of methods that don't always involve DNA, but the principle remains the same: Sometimes, the criminal justice system convicts innocent people.
When a crime scene sample has evidence of more than one individual crime labs attempt to assign the results to particular individuals. When there are DNA alleles from only two people the process is usually straightforward -- there is a "major contributor" and "minor contributor" identified. The problem becomes more complicated if there is evidence of DNA from three or more persons in the mixture. Until recently, many labs reported results as "inconclusive" because separating the mixture of DNA was too subjective. Then several software companies developed algorithms that could assign the DNA profiles to particular individuals by using statistical probabilities. This method of "probablistic genotyping" has been controversial among scientists in the field and forced courts to confront much new evidence.
On July 27, USA TODAY NETWORK-Wisconsin sent an open records request to the Wisconsin Department of Justice. It was seeking reports on the operations of the state crime lab and whether there continue to be backlogs in processing evidence. Hours after the request was filed, Attorney General Brad Schimel announced that he would authorize overtime and create 11 part-time positions to help law enforcement collect DNA samples and other evidence.
There is no debating that forensic science plays an important role in the criminal justice system. One assumes there also would be little debate over the position that, when forensic science is used to convict people of crimes in the United States, that science should be precise and believable.