A court may grant a defendant’s motion to dismiss a DUI charge when the prosecution lacks sufficient evidence to make a prima facie case (meaning they lack enough evidence to go to trial). The court may also dismiss a DUI charge when evidence is excluded from the state’s case because it is unreliable (such as an improperly performed breathalyzer test) or was obtained in violation of a defendant’s rights (such as a police officer stopping a driver without reasonable suspicion or probable cause).
In any case, you need a strong defense attorney to make the argument that your DUI charges should be dismissed.