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OC Crime Lab Admits More Errors in DUI Lab Testing

Posted on in DUI

Earlier this year, officials found mistakes in testing at the Orange County Crime Lab that put the results of hundreds of DUI alcohol tests in jeopardy. Now comes news that even more errors have been discovered at the same lab.

The announcement of the earlier errors was made after officials found mistakes in testing that likely produced incorrect lab test results. Those incorrect results are believed to have occurred over at least 5 months. Several persons, who submitted samples for alcohol testing, and whose test results were affected by the error, have already been contacted by the district attorney's office. Prosecutors have also contacted people who were convicted for driving under the influence or pleaded guilty to DUI, as a result of those botched DUI tests. Not surprisingly, these people are extremely upset about the fact that errors in testing, resulted in convictions for them.

The new error is believed to have been discovered during an audit of the lab's operations after the earlier errors were discovered. Under crime lab procedure, a blood test sample is tested twice using two different machines. The average reading is then taken. However, this error is believed to have occurred when the lab calibrated one of the machines, and failed to input the appropriate data in the software. That meant that the results were skewed by as much as .003 percentage points.

Officials say that this is a very tiny margin of error, and that is the reason why they were not able to identify the error until an audit was conducted. It is believed that approximately 200 cases will be affected a result of the error. At least 20 people had tests that incorrectly reported a reading of .08, instead of .07.

Tagged in: DUI DUI Testing Errors
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