Potential Rise In Stoned Driving Presents Challenge For Police

LOS ANGELES (CBSLA) —Recreational pot becomes legal in California on Jan. 1, and that presents some challenges to law enforcement in determining when a driver is impaired.

With alcohol there's a set limit of .o8. But with marijuana there's no set limit. Even if one is set, determining what's a safe level for "everyone" won't be easy. Sgt. Oscar Chavez with the CHP's Impaired Driving Section tells KNX:

And, when pulled over, there won't be a breath test for a pot user, but Chavez says there will be a blood test to determine chemical level.