News and Information about the Business of Cannabis

Michigan’s Cannabis Testing Is Under Formal Fire

Feb 3, 2026 | Feature, Great Lakes Region, Michigan

Michigan’s Cannabis Regulatory Agency filed a formal complaint against Prism Triangle at 850 Ladd Road in Walled Lake. The complaint lists two counts of not employing a lab manager, one count of not using state-approved testing methods and one count of not meeting state standards for sampling and testing marijuana and marijuana products.

The allegations are technical and serious. Regulators say lab staff manually altered chromatogram peak integration during calibration checks in ways that made instruments appear properly calibrated when they were not, producing unreliable pesticide results on product that reached retail shelves. The complaint also alleges the use of an unapproved aspergillus testing method on multiple packages, bypassing validated procedures the lab was required to follow.

The state is seeking penalties that can include fines, license restrictions, suspension, or revocation. This is not a warning letter or a quiet corrective action. It is a public enforcement action aimed at the integrity of the testing lane.

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