UIC drug test lab report doesn't fully address alleged flawed results in marijuana DUI cases: Illinois Forensic Science Commission
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The Illinois Forensic Science Commission is taking action following a drug testing controversy that came to light through an investigation by the ABC7 I-Team at the University of Illinois-Chicago.

Several DUI cases in Illinois involving marijuana hinged on blood and urine tests that are now under scrutiny for potential inaccuracies.

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On Tuesday, the commission delivered a forceful response and issued recommendations regarding a report prepared by an attorney and released in May by the university. The commission criticized the UIC report as inadequate in addressing the allegations of flawed testing methods used in legal prosecutions.

Furthermore, the commission expressed that the UIC report reflects a significant misunderstanding of forensic toxicology principles. They stated that this report should not be considered a reliable resource for criminal justice professionals assessing the reliability or precision of forensic testing.

In response to the controversy, UIC engaged the law firm Taft Stettinius & Hollister LLP to conduct an independent investigation into the claims of inaccuracies in THC measurement testing.

The main concern revolves around test results that failed to distinguish between Delta-9 THC and other frequently encountered THC isomers like Delta-8, as well as issues in measuring THC levels in urine. The laboratory has already informed law enforcement and prosecutors in Illinois about potential inaccuracies with certain results.

Criminal defense attorneys, who represents clients charged with cannabis DUI, told the I-Team that the UIC report is just a corporate whitewash.

That report said errors were made but may not have impacted all tests. The report concludes UIC’s Analytical Forensic Testing Laboratory methods should have “been modified” to distinguish between two related forms of THC. However, it goes on to say, “Nevertheless, the reliability of those test results may be confirmed on a case-by-case basis.”

Following reporting from the ABC7 I-Team, the DuPage County state’s attorney announced the dismissal of more than a dozen cases involving the faulty tests. Other county prosecutors and police departments in the metro Chicago area are now reviewing cases, including in Cook County.

The head of the state commission said it has been actively working on examining issues related to the UIC lab, the Analytic Forensic Testing Laboratory, or AFTL.

“Step one that the Commission decided to take in response to what happened at AFL, because that report is out there, and that is in the public, and the Commission felt it was very important that they respond to that information that is out there. After they do that response, then they will move forward with their next steps,” the commission’s head said.

Among the things the commission is recommending is UIC initiate a comprehensive audit of AFTL’s forensic toxicology lab operations to be conducted “posthaste,” a report of the findings be made public, and that the audit is made by an independent agency with forensic science expertise.

The lab ceased human testing in February 2024. UIC did not immediately respond to a request for comment.

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