https://www.mncourts.gov/mncourtsgov/media/Appellate/Supreme%20Court/Standard%20Opinions/OPA201254-032223.pdfIn a ruling issued today the MNSC ruled 4-3 that any prosecutor for marijuana or derived products (including vapes) must have evidence from the state beyond a reasonable doubt that the THC concentration is over 0.3% of the total weight. This means it's not longer enough to just prove someone possessed marijuana for even a simple decriminalized possession charge, they must thoroughly test the product and give a detailed lab report of the total concentration. This isn't even possible for many rural police departments and it seems unlikely anywhere is willing to do such thorough lab testing to give someone a citation for possessing a dimebag. Even big trafficked amounts (like the one in the case that this involved) aren't usually tested on that level because of the time and expense.
So yeah good luck with any enforcement now.