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Alcohol-related: alcohol-dtecting laser developed; no need to pull over drivers....

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  1. i doubt it would work on a convertible ;-)

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    1. The article even acknowledges that the system would pick up on alcohol vapor exhaled by a passenger-- so now the police would pull over every designated driver, and what, breathalyze the driver and all occupants to figure our exactly whose booze breath the laser system detected?

      1. "...alcohol vapor could be detected on the breath of a driver as low as 0.1%, and from any of the car’s passengers." Hmmm, passengers....

        I'll need to build in time on the ride home for my Uber to get pulled over.

        1. This assumes people don't drive with the windows open...

          1 Reply
          1. re: StriperGuy

            Or ac on with it turned medium or high. Or smoke with the windows closed.

          2. This would tempt me to keep an open bottle of rubbing alcohol in my car's cupholders while driving!

            2 Replies
            1. re: hawkeyeui93

              I keep a small container of hand sanitizer, which is basically just alcohol in the car at all times. Occasionally when giving a buck to a panhandler (sorry, is there a politically correct term?) they touch more than the money. Just saying.

            2. Note that the technology to detect ambient alcohol vapor in cars isn't new at all, what's new here is doing it remotely, without stopping a car and sampling its air directly.

              Hand-held "sniffer" devices near a stopped car's open window (some of them sized and shaped roughly like flashlights, if I recall) have been used by some US police for years, and all the points in this thread about other materials causing false positives already apply with those.

              Freshly baked bread, clear sunblock lotion or spray, hand sanitizers, etc. all release ethanol vapor in relevant quantities and depending on the particular sniffer sensor technology (i.e. whether it, like the ADH enzyme group in our livers, responds generically to OH groups on carbon chains), you could get false positives from other alcohol types like polyols (as in glycerin in hand lotions, or sugarless chewing gum).