By The Huffington Post News Team A major concern of police about state laws legalizing marijuana has been how to detect when motorists may be driving under the influence of pot — or…

Read more: Marijuana, San Diego, Drunk Driving, Marijuana Reform, Educational Testing, Auto Accidents, San Diego Police Department, Drugged Driving, The San Diego Union-Tribune, Crime News

Read this full story…..: San Diego Debuts Mouth Swabs To Detect Drivers High On Pot