It is understandable to think of drunk driving and DUI as the same thing. But legally a DUI is not necessarily the same as drunk driving. The term drunk driving can be associated with being hammered and falling down drunk. DUI on the other hand stands for Driving Under the Influence. The Washington State Pattern Jury Instructions include a reference to the ability to drive being affected to an appreciable degree in the definition of DUI. That means it doesn’t take much to be convicted of a DUI. If you are charged with a DUI you need an experienced DUI lawyer to get you the best possible result.