The morning after that evening’s surprise test, I took my own back-up test at another testing facility nearby. The sample went to the same lab (USDTL) at the surprise test for analysis. Results: negative! How can that be? How can I test positive from one tester and negative at another, within hours? The PEth test is a 2-3 week look-back. So far, Forensic DNA & Testing has shown me positive three times, where every other tester results came back negative. All of it with no alcohol consumption at all. Something isn’t right. I also recently did a fingernail EtG which came back negative, which I was told looks back 6 months. Currently I cannot see my kids because of Forensic DNA & Testing PEth Test positive results. I’m working hard to vindicate myself, included getting a toxicologist to review all the results & speak on my behalf as not drinking.