Charles Williams

A motorist charged with a DUI has a few different options when it comes to mounting a defense. Some affirmative defenses exist in very rare circumstances, even when the evidence otherwise supports the charge. But it's more common to defend against a drunk driving charge by attacking the officer's observations of what happened prior to the arrest or challenging the integrity of the evidence, such as the accuracy of a breathalyzer test. State DUI laws differ and everyone's case has different facts, so it may help to consult with a lawyer.