“How can this have happened,” you ask.  If you’ve been hit with a false DUI charge, don’t worry.  There are expert lawyers who can prove you’ve been wrongly charged.  There are built-in flaws that can compromise the validity of various tests, including the HGN eye test and the breathalyzer.  Twenty-seven states require duplicate breath tests for it to be considered valid.  The eye test (having you follow a light moving left and right while shining in your face) isn’t even admissible in some states anymore.  Other dexterity tests you took could be flawed due to nervousness, weight, a bad back, a bad leg, or other physical constraints.  Your dui lawyer should have the experience in dealing specifically with DUI cases to give you the best chance of beating the charges.