Marijuana legalization opponents take aim at stoned driving

STATE HOUSE — Legalization of marijuana would result in greater dangers on Massachusetts roadways, where authorities are ill-equipped to even know whether drivers are intoxicated by the leafy green drug, opponents of Question 4 said Tuesday.
"If this ballot question passes we're asking police officers on the street to do an impossible task. We're asking them to determine if somebody's impaired or not," Rep. Paul Tucker, the former chief of police in Salem, said at a press conference outside the State House.