Are Standardized Field Sobriety Tests effective in predicting cannabis impairment?

standardized field sobriety tests like the walk and turn are not always effective

Police officers use standardized field sobriety tests (SFST) at the roadside when deciding whether or not a suspected impaired driver should be taken back to the station for further breath or blood tests. While approved roadside screening devices are widely used across Canada to detect alcohol impairment, drug screening devices are not as common. While the government approved the Draeger DrugTest 5000 for police use, the portable devices, which test saliva for the presence of THC, are not always reliable. As a result, some police forces opted not to use them and many still rely on the good old-fashioned SFST in drug-impaired driving investigations.

Are Standardized Field Sobriety Tests effective in predicting cannabis impairment? Read More »