From the ACLU:
In 2015, following a DUI arrest, Ian Mitcham consented to having a blood sample collected to test for blood-alcohol concentration. He was advised his sample would be destroyed after 90 days. Instead, law enforcement held onto it for three years. Then, without obtaining a warrant, a detective used this old blood sample for a completely different purpose — to extract and analyze Mr. Mitcham’s DNA while investigating another crime.
As we’re arguing before the Arizona Court of Appeals tomorrow, and set forth in a friend-of-the-court brief, this clearly violated Mr. Mitcham’s constitutional rights under the Fourth Amendment. Despite this, the State makes a terrifying argument to justify its actions: that it has the power to obtain DNA profiles from any biological sample in its lawful possession, without court oversight or approval.
Read more at ACLU.org.
h/t, Joe Cadillic