The only thing they are measuring for is your bac. Blood alcohol content. I couldn’t stop drinking, and I promised my brother I woulsnt drink for his wedding, so I went and asked the court for the portable breathalyzer. Knowing if I were to blow and fail for alcohol I’d be picked up and held 2 hours later. It’s strictly alcohol. I had a history with this court system. They helped me get my medical marijuana card. They knew me when I was an iv drug user in and out of Jail. I caught a case drinking after 8 years of no trouble. So the court almost took a harm reduction route with me. The assistant chief of probation said to,me when I asked about smoking pot or eating mushies, “as long as you’re not shooting dope.”