As a police officer how do you check if someone is driving while way too damn high?
There isn't anything to detect THC levels in the blood of a driver. The most they can do (I presume) is base it on smell, but that doesn't detract from the potential of it being the passenger next to the driver or even the location in which the driver was previously in where there might have been generous marijuana use.
That said, unless the driver is swerving in the road, it would be very difficult to tell.
Either way, I wouldn't be able to tell you with certainty, as I am not part of law enforcement. I wonder if that same test employed for drunk drivers (walk the straight line) can be employed for those under the influence of marijuana?
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