I don't know if this tip is for me or the group, but I stated that I do not drive impaired. The consequences are devastating and not worth the risk. Especially if you are in an injury accident.
However, the limits for DUI in Washington state are so low they could get you as impaired when you haven't smoked in several days, or so I am told. I forget what the actual limits are, I just hear everyone say that they are ridiculously low.
Again, I almost only smoke and drink at home once I am settled in for the day. I am not a teenager that spends all of his time impaired.
It was really just said in jest. I did not mean to imply that you do drive impaired. In all seriousness though all of the ways I've heard of to test for marijuana use, by far exceed the amount of time it's actually impairing you. So no test in my mind is fair since it potentially could find you guilty even though you were sober. Even the blood test. I am not sure but I seem to recall hearing the blood test can only detect a 6 hour window but when was the last time you still felt under the influence 6 hours later? Then also there is the whole issue of tolerance. As most of us have experienced, when you have lots of weed available to you, one can easily reach a point that what it takes you to get an average buzz would turn a person with a lower tolerance into a slobbering fool. I've heard they have a saliva test but I don't know accurate it is and again how can any test detect tolerance? So it would seem any conviction should require additional road side coordination/sobriety tests which would likely be as easily thrown out by a good lawyer as they can be with DUI for alcohol.