As you know, right now there is certainly law that is provided when an individual decides not to blow. Obviously, there's a presumption that by not blowing.... They are charged accordingly for not providing a sample when that sample is being asked for. So to a certain degree, it's addressed in that fashion. I certainly haven't thought of any other pieces of legislation that would have that kind of reverse onus.
On February 25th, 2009. See this statement in context.