[Vinnie]

They all seem to suggest that every time pot is “detected,” the driver was impaired.

Is there a test that can set a quantitative figure of THC in the body? A test that can determine whether the amount is likely to cause impairment?
I'm not aware of one. Certainly not one that an officer can use roadside.

[dsc]

“I’m not aware of one. Certainly not one that an officer can use roadside.”

Nor I. However, that doesn’t stop the prohibitionists from asserting as fact a thing that remains to be demonstrated.

[1_Inch_Group]

Nope. THC metabolites stay in your system 30+ days...depending on your body type. Fatties get to keep the THC longer, it loves fat.

[Mariner]

“Certainly not one that an officer can use roadside.”

California has awarded CHP 10s of millions of pot taxes to find one. One that will stand up under scientific scrutiny, court review...and is affordable.

So far, nothing proposed. And I agree with many here that it’s an issue that needs more resources assigned.

[momincombatboots]

Always has been for decades. Every drug test, even of it says pos/neg has a cutoff limit. It is required to be reported w the result.