Possible reasons for a suspected search, include management receiving a report or accusation from other team member, a complaint from a parent or colleague, visual evidence of a drug deal or purchase near or on the way to the gan and any other reasonable indication that a staff member may have illegal substances on their person
CBD tends to be present in much higher concentrations in hemp, a low-THC variety within the Cannabis plant family
These particle ranges are small, sitting at most around 0.5 Micron according to the PubMed National Library of Medicine
doi: 10.1093/eurpub/ckt002.CrossRefGoogle ScholarPubMed Lee, J.G., Goldstein, A.O., Kramer, K.D., Steiner, J., Mathew, M., Ezzell, M.M