On Monday, the New York Times
printed a well-rounded look
at the intricacies involved in driving while stoned or drunk, how to catch those that do, and whether or not it's even worth targeting pot partakers.
Here's a few quick hits:
• Standard field-sobriety tests catch about 88 percent of drunk drivers, but the tests are much less efficient at revealing a stoned driver, especially a seasoned one.
• One researcher's aggregation of multiple studies yielded the theory that stoned driving increases the risk of a car accident two-fold, while a drunk 20-year-old's risk of an accident increases 20-fold.
• Stoned drivers did much better than drunk drivers in tests of memory and math, but ran into trouble of their own when it came time to process a multi-faceted situation with sudden changes.
• One doctor think the 5 nanogram per milliliter limit that Colorado has imposed on its drivers is too high, and supports a 1 nanogram limit. Of course, the risk is that "if you smoke often enough, your blood-THC content might still be five nanograms per milliliter a day after you last lit up."