Beyond breathalyzers, San Diego police can now field test drivers for drugs

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The driver told San Diego police he had passed out in a mall parking lot and woke up to find his car crashed into a pole.

The officer who responded to the scene earlier this month noted that the driver displayed signs of impairment — dilated eyes, swaying back and forth, an elevated pulse, Sgt. Greg Minter said.

While the driver failed a field sobriety test, his breathalyzer test came back clean — no alcohol detected.

The driver admitted that he had smoked methamphetamine earlier in the day, the sergeant said. He agreed to be tested for drugs, a mouth swab right there in the field. The result: positive for methamphetamine.

That was among the first few times San Diego police used a device called SoToxa, which tests saliva to detect several types of drugs. It’s similar to a breathalyzer in that it’s a mobile, handheld device designed for quick results in the field. Giving a preliminary drug test to drivers in the field is “something that we haven’t been able to do before,” Minter said.

SDPD officer Anthony Bueno displays the departments new SoToxa, a small device which tests saliva to detect several types of drugs, on Monday, December 22, 2025 at their Murphy Canyon facility..( Photo by Sand...                    </div>

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