If you think that the cops are 1/ properly trained 2/ will do the right thing 3/ have your best interest in mind you're going to have a bad time. This is not a

If you think that the cops are 1/ properly trained 2/ will do the right thing 3/ have your best interest in mind you're going to have a bad time. This is not about being sober (hopefully everyone is driving sober). This is about making sure that your rights are respected. By the time the cop asks you do to any sort of test they have already made up their mind and now are trying to justify it. Do yourself a favor and ask for the blood test - that is usually administered by a trained medical professional.