A DUI charge is a misdemeanor not an infraction, if convicted you face up to six months in jail. You need to go to court and clear your name, assuming your relative was arrested and booked you need only show up, explain the situation and request the DA to provide you (and the court) with proof of identity, photo, fingerprints etc. Since you don't match you should be free to go.
Answered on Jul 03rd, 2013 at 9:39 AM