Your drunk driving charges may have happened in a lot of different ways. Imagine, for example, you were pulled off to the side of the road because you knew you were too drunk to drive, and while you were sleeping it off, an officer comes to knock on your window. That circumstance is a lot different from a driver who was so intoxicated that he or she was driving the wrong way down the Interstate.
Alternatively, maybe you hadn't drunk a drop of alcohol the entire night, but for some reason, a police officer became convinced you were drunk when in fact you were not. These kinds of things happen, and that's why every Mississippi driver is entitled to a criminal defense.