What so frustrating @tooltoolsd is I know for a fact I have had a false positive but I’m being treated as a relapse. Data and science with follow up tests prove it is impossible for it not to be a false positive. If it’s not a false positive then the two follow up tests (intravenous/nail etg) then both have to be false negatives. It cant go both ways? Is this not being brought up the chain at all in the scientific community? For some cases specifically the FAA?