Saturday, November 23, 2013
From the L.A. Times:
The new discoveries come just weeks after the lab acknowledged inaccurate blood-alcohol test results in 2,200 driving-under-the-influence cases. Prosecutors responded by sending letters to drivers charged with DUIs, including 900 who already had been convicted.
. . .
Houlihan said the latest problem was uncovered while conducting a five-year audit of the lab's work in the aftermath of the initial error. Auditors, he said, discovered that a second machine at the lab had a calibration error that could produce blood-alcohol readings that were off by .001 of a percentage point. The faulty reading occurred between December 2012 and May 2013.