Accuracy of breathalyzers thrown into question amid Michigan State Police investigation

Michigan State Police are investigating three contract employees who ensure the accuracy of breathalyzers used during traffic stops after authorities discovered “performance-related issues” and possible fraud.

State police notified law enforcement officers across the state to stop using more than 200 breathalyzers from longtime vendor Intoximeters.

The investigation focuses on three Intoximeters contract employees, who were responsible for certifying and calibrating Datamaster DMT breathalyzers to ensure they are accurate.