food substances. In the course of my testing I found reliable means to reduce an EBT reading result and could readily drop a modest 'over the limit' reading to a pass. Those means contradicted the manufacturer's claims in relation to certain aspects of their machine's performance and the latter were challenged in US Courts. I still have all that data in my computer files and get occasional calls from US Attorneys for advice or to provide briefs of evidence. My advice is not to drink and drive, but if you have been drinking, never try to mask the alcohol on your breath with peppermints etc (a dead giveaway to the Officer anyway) because they may cause you to fail, and blow just hard enough to record the samples. A couple of ramp-up failures shouldn't cause you grief, not everybody has the physical ability to blow hard, just try again, a little harder each time until you see the machine registering, and if your reading is under 450, insist on having a blood test, it can't make matters any worse unless you 'pre-loaded' or 'topped up' before leaving the bar or party. It may just be that your true breath result would have been below the limit and the blood test will confirm that. Cheers Billy 8-{) Billy T 25-06-2012, 01:59 PM FYI the paint thinner argument was run many years ago and that case is one of the useful precedents on drink/driving law. Boat painter. Convicted. A bit tough since