As far as I know, nothing like a breathalyzer used for alcohol. I did find this statement in an article when Googlin'. So, in CO, it seems they'd have to arrest you under suspicion of impairment then get a blood sample for testing.Semi-related, but out of curiosity, is there a way to test a driver to determine if they are impaired on MJ? I believe at first at least there wasn't. Has that changed? Are there legal limits of 'highness'?
some states have laws that allow THC levels to be presented as evidence of impairment. Some of these laws were passed in response to the legalization of marijuana for recreational use. In Colorado, for example, it is a permissible inference that the driver was impaired by marijuana if he or she had more than 5 nanograms of delta-9-THC per milliliter of blood.
The majority of CBD is made from hemp and not marijuana with THC. It can only contain a very small amount of THC or the feds wouldn't allow it.have had a few employees that were using cbd with high thc. there are definitely safety issues with being stoned or drunk. they also had problems with understanding and carrying out their job descriptions.