In early 2019, he ordered a vaporizer and CBD tinctures — which are taken orally — from an online retailer he considered reputable.
[…]
After a routine drug test came back positive for marijuana a few months later, he told supervisors that he had been using CBD and turned the products over to investigators. Lab tests showed that two contained less than 0.3 percent of THC, but one had a slightly elevated level: 0.35 percent, which was within the test’s 0.08 percent margin of error, according to Mr. Armour’s lawsuit.
Maybe read the article next time?