Q: Does State Patrol have training material that states heat bumps on the back of someone's tongue indicate drug use?
If so is this recently recognized by the scientific community as factual information?
A: To my knowledge, the answer is "no." The National Highway Traffic Safety Administration (NHTSA) is a federal agency providing support and funding to local law enforcement agencies, as well as funding and collecting scientific research. NHTSA's two similar programs for law enforcement, ARIDE and DRE, do not mention or support this, as revealed in my searches of their materials. If someone is making such a claim, I would challenge them to cite an authoritative source to support their claim, should they have one. Then review it. For now, since I can find zero support for the claim, I would view it as a false claim. An expert witness could be helpful to the defense in a trial or other court action.
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