If it's like the ones tested in this news feed
https://www.planetofthevapes.co.uk/news/vaping-news/2019-09-13_salt-lakes-angel-dust-juices.html even the testing lab debunked the claims as the initial tests were done with test strips used for urine tests.
The whole farce shows that the US has no way to control vaping, as is the case in Europe, because they have no proper regulations like the TPD. There will always be isolated incidents of drugs being used in vapes, it's happened here. But compliance between juice makers & FDA could & would keep these incidents to a minimum.
Speaking of taking the piss.....
The CDC - Centres for Disease Control (and prevention) gives guidance to healthcare professionals
(Hospitals)
to gather information about cases - yet they do not advise taking a urine sample
A urine sample which can test for THC in the system weeks ago to assist in clarification of cases....
see here - just watch first few minutes.....
https://www.youtube.com/watch?v=qZJn7b4tiQo&t=1s
What most of this crap often comes back to in many cases.....
Juul products, that got young people addicted to nicotine
with very very high smooth concentrate of nic salts & fruit flavourings
who then went onto to purchase Juul pods with THC & other substances outside the regular vaping community
These empty pods are peanuts to purchase from China, but even sold in Vape stores in both US & UK
Which are filled by people (I use the term loosely), that have no morals/integrity
& fill them with a much more lethal chemical not designed to be delivered by vaping
but under the tongue say to be absorbed into bloodstream etc......
Which makes for a very profitable, highly addictive, repeat business to naive youngsters
But let's ignore all this - call out vaping as the scourge with flavourings as the poison by MSM