Marijuana dui roadside testing is a new issue.
Roadside marijuana test equipment.
Stanford engineers are developing a portable device that measures thc levels in saliva a step toward creating a roadside test for driving under the influence of marijuana.
Detecting marijuana by way of a road side test seems an obvious enough measure as the legalization movement gathers momentum but an effective technology is yet to really be established.
Roadside test for marijuana.
Find out how current testing works and what makes it so difficult to test for marijuana.