Being arrested is overwhelming for anyone (even lawyers! They hire legal representation, too). DUI attorneys understand the entire process such as paperwork requirements and deadlines, bail, fines, possible consequences, the right questions to ask witnesses, how to dispute scientific evidence, DMV procedures and the many court rules. A DUI lawyer works to emphasize the favorable parts of your case while minimizing the points that are less favorable.
Evidence is another critical part of the process. As an example, law enforcement dashcam videos are essential evidence, but you must request them within a certain timeframe or risk the videos being erased. Deadlines are critical, too.
Just as important, DUI lawyers know the people in the legal system, including clerks, prosecutors and judges. Your lawyer can use those relationships as part of case strategy. Some judges prefer certain approaches while others do not, and it is a huge boost to have someone in your corner who knows the area.