Hate to tell you all but "blowing into the tube" is for sure not accurate. Dr. Pepper will give you a false positive as will gum.
We just threw up a page dealing with
DUI and Prescription Drugs in Nevada.
DUI is not as simple as most think it is.
In Nevada, we have the "Implied Consent" law.
I feel bad for Tiger, What a downward spiral he's had since he lost his women.