Why it s difficult to develop a roadside test for marijuana written by matt berger updated on september 24 2018 police in colorado and california are using tests to see if drivers are high.
Roadside marijuana test equipment.
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.
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.
The ontario provincial police has yet to decide whether its officers will use new roadside drug testing equipment approved by the federal government.
The ability to properly test marijuana impairment with roadside devices remains front and centre seven months after legalization with at least one possible legal fight brewing.