A forensic scientist’s worst nightmare — getting samples (or sample results) mixed up.
Don’t say it can’t happen, just hope it only happens as rarely as it is discovered/reported. It very well might be much more common.
Original article posted here.
Tooele County prosecutors on Wednesday dismissed automobile homicide charges against a Tooele man after discovering a mix-up at a state laboratory.
Charges against Steven D. Jakeman, 43, were filed after the Utah Bureau of Forensic Toxicology reported the results of his blood test incorrectly, leading prosecutors to believe he had been drunk when a dump truck he was driving collided with a UPS truck Dec. 1.
The UPS driver, 54-year-old Alan Christopherson, of West Jordan, was killed in the crash at the intersection of State Roads 36 and 138.
Utah Highway Patrol officers took a blood sample at the scene and sent it to the Bureau of Forensic Toxicology for analysis, said prosecutor Gary K. Searle.
The results came back with a blood-alcohol content of 0.19, nearly 2½ times the legal limit. On Dec. 31, Jakeman was arrested and later charged with automobile homicide.
But Jakeman said he wasn’t drunk, and witnesses and UHP officers also raised doubts, Searle said. A hospital report confirmed that he showed no signs of drunkenness. He was released six days after his arrest.
The blood sample was re-tested at a private lab, and it came back showing no alcohol. The sample was then tested again at the toxicology lab with the same result.
It turned out that an analyst misread a numerical code identifying the sample and labeled it incorrectly, likely right after the blood sample was received, bureau director Gambrelli
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Layco said. While the blood was analyzed correctly, the lab passed along the results of a different case.
The analyst responsible has been assigned to a different rotation, and the lab will change its procedures so analysts will check the labeling three more times, Layco said. It was the first such incident for the lab, she said.
The automobile homicide charges were dismissed, though Jakeman may be charged with failure to yield, a class C misdemeanor, Searle said.
Defense attorney Danny Quintana, said his client feels vindicated, but the mix-up was “a human error.”
“Our prayers go out to the family of the individual that died,” he said.