After reading your post I guess I am wondering what makes you such an expert on ETG testing? I have tested positive 4 times in the past two years and have not had a drop of alcohol to drink. I am however, pre-diabetic and have frequent urinary tract infections, but the courts choose not to look at these facts. I am now facing time in prison because of these ETG tests and the fact that Dr. Skipper is claiming that these tests are highly innaccurate, so for you to tell me that anything above 500 is definite alcohol consumption only shows me that you don't know to much about ETG testing at all. This test is destroying lives, everyones body is different and ETG testing doesn't take that into consideration.