A DUI lawyer is an expert in the specific DUI laws pertaining to the state in which he practices. According to the United States Supreme Court, a criminal defense attorney should, whenever possible, always do the following:

  1. Regardless of whether you’re innocent or guilty, the single most important role of a DUI defense attorney is to prevent the conviction of his client. 
  2. Assist his client in defending their rights and reputation against any evidence the prosecution may plan on presenting. 
  3. Ensure his client is equipped for trial, by preparing a defense argument that the client is both comfortable and confident about presenting in court.