By Chloé White, Policy Director, ACLU of Vermont In the wake of marijuana legalization, many states are looking for new ways to keep impaired drivers off the road. Unfortunately, some proposals would lead to problematic and possibly unconstitutional police practices. One such idea is warrantless roadside saliva testing. During a roadside saliva test, a police officer takes a saliva sample from a driver’s mouth and inserts the sample into a machine that at least theoretically can detect whether any amount of certain controlled substances?—?legal or illegal?—?is in the driver’s system. Yuck factor aside, there are several problems with this. First, at best, these tests merely detect the presence of drugs in a person’s system. Unlike breathalyzers, they...
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Guest Opinion: The Trouble With Roadside Saliva Tests