San Jose Mercury News
Sparks might fly as lawmakers later this month hear a bill that would make it illegal to drive with any detectable trace of marijuana or other illegal drugs in the blood, regardless of the driver's actual impairment. Marijuana advocates say this "zero tolerance" bill, to be heard April 23 by the state Senate Public Safety Committee, overlooks the fact that driving impairment can't be determined by the presence of marijuana compounds in the blood.
