this is probably the second-most studied thing in forensic toxicology after alcohol use.
> Cannibis can be in your system for weeks or months
and the levels of active compounds[1] in somebody recently using, vs someone months away from use look very different, and their nature will generally work to the benefit of the defendant when reviewed by a competent forensic toxicologist.
[1] - not a yes/no from shitty screening methods; that kind of information comes off of quarter-million dollar mass spectrometers. they should be able to separate all of the inactive and active compounds from each other, enumerate them and list their exact concentrations in the blood.
Show me that they could tell if I was smoking one hour ago versus one day ago? That’s the point here, I bet they can’t even reliably tell one week versus one hour. Maybe they can tell off I had only smoked several months ago, that won’t help me tomorrow if I smoke today before dinner.
> Cannibis can be in your system for weeks or months
and the levels of active compounds[1] in somebody recently using, vs someone months away from use look very different, and their nature will generally work to the benefit of the defendant when reviewed by a competent forensic toxicologist.
[1] - not a yes/no from shitty screening methods; that kind of information comes off of quarter-million dollar mass spectrometers. they should be able to separate all of the inactive and active compounds from each other, enumerate them and list their exact concentrations in the blood.