Suspected cannabis-impaired drivers more costly to test: Police report

10/5/19–According to a new report, it’s more costly for police to deal with a suspected cannabis-impaired driver than one suspected of driving drunk. For cannabis, an officer spends six hours processing an impaired driver, compared to one hour for a driver impaired by alcohol. This difference reflects the time required to complete a specialized field sobriety test, to administer a test by a drug recognition expert and take a blood sample. Read