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How Sober Cannabis Users are Wrongfully Convicted of Intoxicated Driving
Police in Michigan continue to use unreliable chemical and field sobriety tests when investigating drivers suspected of using cannabis. This can lead to sober cannabis users being wrongfully convicted of intoxicated driving. This is because the tools used for decades to investigate drunk driving cases simply do not translate well to the investigation of drivers believed to be under the influence of marijuana.
These conclusions are drawn from a 2020 research study conducted by the National Institute of Justice. This federally funded research study resulted in the production of a final written overview which was subsequently submitted to the U.S. Department of Justice. The title of the overview is Differences in Cannabis Impairment and its Measurement Due to Route of Administration. (Hereafter “NIJ Study”).