Soon there will be a ‘fingerprint’ drug test, that will detect MJ and cocaine, and many other drugs. No need to draw blood with that test.
Those detect metabolites, not really good for showing you’re under the influence right then. No good for DUI.
New drug test can detect cocaine in a fingerprint in seconds
https://www.cnbc.com/2017/09/22/new-drug-test-can-detect-cocaine-in-a-fingerprint-in-seconds.html
I was actually looking for an article from many years ago about a New Drug Test that is a piece pf paper, they caught all the Drug Warrior Higher Ups in Canada at a Drug Enforcement Conference under the Influence of numerous Illegal Drugs, but refused to tell which one had which drugs in their system, They notified the Guilty parties and confronted them with the evidence, but it made the NEWS everywhere when it happened. But the Story ended that very day and was never brought up again.
“‘fingerprint’ drug test”
I believe it only detect THC metabolites, which will be present if you smoked in the last 30-45 days.
No court will convict on that.
We need a test for active THC in the system...now. And we need an impairment threshold.
But therein lies the problem. Impairment occurs at microgram levels...perhaps picogram. And no roadside test or affordable clinical test can detect at those levels.
We’ll see more LEO overreach because we don’t have an affordable, accurate test. And there’s none on the horizon.
We’ll also see dangerous people on the road because of it.