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Sobriety checkpoints are extremely stressful, even if you are sober. Anxiety alone can cause you to stutter through conversations with police officers and stumble through roadside tests. If the officer decides to give you a breathalyzer, some people panic, whether or not they’ve had a drink in the past few hours. You might think: “What if the breathalyzer blows positive even if I had nothing to drink?”

 

That may sound like a silly fear to some people, but it’s not completely unwarranted. Over the years, there have been numerous cases in which breathalyzers have registered a false positive and …