4 ms·

Cannibis can be in your system for weeks or months, so take the authority reports that the accident was caused by cannabis intoxication with a grain of salt, an

by ok_dad 4y ago

Cannibis can be in your system for weeks or months, so take the authority reports that the accident was caused by cannabis intoxication with a grain of salt, and assume that absent other evidence it might be that the user in this case wasn’t high at the time. I’m not saying this to say no accidents has been caused by cannibis, but that there’s currently no way to tell current level of cannabis intoxication. Authorities will use the lack of nuance in their favor.

sokoloff 4y ago
> absent other evidence Perhaps a car embedded in the second floor of a house?
- ok_dad 4y ago
  A traffic collision is not evidence of inebriation, though, since people get in collisions when not inebriated. I'm talking about someone following them that saw them weaving, not holding a phone, perhaps nodding asleep, or maybe even someone saw them smoking a joint, then a just-lit joint was found at the scene.
sigstoat 4y ago
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.
- ok_dad 4y ago
  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.
PointlessLogin 4y ago
> Cannibis can be in your system for weeks or months No. You are confusing the tests for cannabis metabolites (that can tell if you smoked weeks ago) to tests for THC, the substance that gets you stoned and leaves the bloodstream as you sober up. A driving impairment test will test for THC, not metabolites. Nobody cares if you smoked last week, only if you are under the influence when driving. In the UK, having 2ug / litre of THC in the blood is a drug-driving offence. At a minimum you will loose your licence for 1 year. https://www.majlaw.co.uk/offences/drug-driving/cannabis/ https://www.majlaw.co.uk/offences/drug-driving/cannabis/
- ok_dad 4y ago
  > 2ug / litre of THC in the blood is a drug-driving offence So I can have up to 8ug of THC in my blood? If I took 0.1mg (100ug) of THC (and would be very NOT high in this case, as it is 1/100th of a "normal" dose) I would probably be over the limit in that case, so sure they may be able to test for THC in the blood, but the limit is so laughably low as to effectively ban cannabis users from driving.
  - PointlessLogin 4y ago
    Read the bloody link I provided!

by ok_dad 4y ago

sokoloff 4y ago

> absent other evidence Perhaps a car embedded in the second floor of a house?

ok_dad 4y ago
A traffic collision is not evidence of inebriation, though, since people get in collisions when not inebriated. I'm talking about someone following them that saw them weaving, not holding a phone, perhaps nodding asleep, or maybe even someone saw them smoking a joint, then a just-lit joint was found at the scene.

sigstoat 4y ago

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.

ok_dad 4y ago
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.

PointlessLogin 4y ago

> Cannibis can be in your system for weeks or months No. You are confusing the tests for cannabis metabolites (that can tell if you smoked weeks ago) to tests for THC, the substance that gets you stoned and leaves the bloodstream as you sober up. A driving impairment test will test for THC, not metabolites. Nobody cares if you smoked last week, only if you are under the influence when driving. In the UK, having 2ug / litre of THC in the blood is a drug-driving offence. At a minimum you will loose your licence for 1 year. https://www.majlaw.co.uk/offences/drug-driving/cannabis/ https://www.majlaw.co.uk/offences/drug-driving/cannabis/

ok_dad 4y ago
> 2ug / litre of THC in the blood is a drug-driving offence So I can have up to 8ug of THC in my blood? If I took 0.1mg (100ug) of THC (and would be very NOT high in this case, as it is 1/100th of a "normal" dose) I would probably be over the limit in that case, so sure they may be able to test for THC in the blood, but the limit is so laughably low as to effectively ban cannabis users from driving.
- PointlessLogin 4y ago
  Read the bloody link I provided!